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CERTFR-2025-AVI-0183
Vulnerability from certfr_avis - Published: - Updated:
De multiples vulnérabilités ont été découvertes dans les produits SUSE. Certaines d'entre elles permettent à un attaquant de provoquer une élévation de privilèges, une atteinte à la confidentialité des données et une atteinte à l'intégrité des données.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| SUSE | N/A | SUSE Manager Proxy 4.2 | ||
| SUSE | N/A | SUSE Linux Enterprise High Performance Computing LTSS 15 SP3 | ||
| SUSE | N/A | SUSE Linux Enterprise Micro for Rancher 5.2 | ||
| SUSE | N/A | SUSE Linux Enterprise Live Patching 15-SP3 | ||
| SUSE | N/A | SUSE Linux Enterprise High Availability Extension 15 SP3 | ||
| SUSE | N/A | SUSE Linux Enterprise Server 15 SP3 Business Critical Linux | ||
| SUSE | N/A | SUSE Manager Retail Branch Server 4.2 | ||
| SUSE | N/A | Confidential Computing Module 15-SP6 | ||
| SUSE | N/A | SUSE Linux Enterprise Server 15 SP3 | ||
| SUSE | N/A | SUSE Linux Enterprise Micro 5.2 | ||
| SUSE | N/A | SUSE Enterprise Storage 7.1 | ||
| SUSE | N/A | SUSE Manager Server 4.2 | ||
| SUSE | N/A | SUSE Linux Enterprise High Performance Computing 15 SP3 | ||
| SUSE | N/A | SUSE Linux Enterprise Server for SAP Applications 15 SP3 | ||
| SUSE | N/A | SUSE Linux Enterprise Server 15 SP3 LTSS | ||
| SUSE | N/A | SUSE Linux Enterprise Micro 5.1 | ||
| SUSE | N/A | openSUSE Leap 15.3 | ||
| SUSE | N/A | SUSE Linux Enterprise Server for SAP Applications 15 SP6 | ||
| SUSE | N/A | SUSE Linux Enterprise Server 15 SP6 |
References
| Title | Publication Time | Tags | ||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "SUSE Manager Proxy 4.2",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise High Performance Computing LTSS 15 SP3",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Micro for Rancher 5.2",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Live Patching 15-SP3",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise High Availability Extension 15 SP3",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server 15 SP3 Business Critical Linux",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Manager Retail Branch Server 4.2",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "Confidential Computing Module 15-SP6",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server 15 SP3",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Micro 5.2",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Enterprise Storage 7.1",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Manager Server 4.2",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise High Performance Computing 15 SP3",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server for SAP Applications 15 SP3",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server 15 SP3 LTSS",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Micro 5.1",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "openSUSE Leap 15.3",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server for SAP Applications 15 SP6",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server 15 SP6",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2025-21637",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21637"
},
{
"name": "CVE-2024-57948",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-57948"
},
{
"name": "CVE-2025-21689",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21689"
},
{
"name": "CVE-2025-21697",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21697"
},
{
"name": "CVE-2023-52925",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52925"
},
{
"name": "CVE-2024-56664",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-56664"
},
{
"name": "CVE-2024-53226",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-53226"
},
{
"name": "CVE-2024-49884",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49884"
},
{
"name": "CVE-2024-56548",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-56548"
},
{
"name": "CVE-2025-21684",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21684"
},
{
"name": "CVE-2025-21688",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21688"
},
{
"name": "CVE-2024-49950",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-49950"
},
{
"name": "CVE-2024-47701",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-47701"
},
{
"name": "CVE-2025-21647",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21647"
},
{
"name": "CVE-2023-52923",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52923"
},
{
"name": "CVE-2025-21699",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21699"
},
{
"name": "CVE-2023-4244",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-4244"
},
{
"name": "CVE-2024-56601",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-56601"
},
{
"name": "CVE-2024-57791",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-57791"
},
{
"name": "CVE-2024-50199",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50199"
},
{
"name": "CVE-2025-21690",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21690"
},
{
"name": "CVE-2024-45010",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-45010"
},
{
"name": "CVE-2024-56579",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-56579"
},
{
"name": "CVE-2025-21636",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21636"
},
{
"name": "CVE-2024-56759",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-56759"
},
{
"name": "CVE-2024-50185",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50185"
},
{
"name": "CVE-2024-53239",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-53239"
},
{
"name": "CVE-2024-57849",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-57849"
},
{
"name": "CVE-2024-50115",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50115"
},
{
"name": "CVE-2024-53173",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-53173"
},
{
"name": "CVE-2024-56623",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-56623"
},
{
"name": "CVE-2024-56600",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-56600"
},
{
"name": "CVE-2024-50085",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50085"
},
{
"name": "CVE-2024-44974",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-44974"
},
{
"name": "CVE-2025-21640",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21640"
},
{
"name": "CVE-2024-56658",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-56658"
},
{
"name": "CVE-2025-21692",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21692"
},
{
"name": "CVE-2024-26708",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-26708"
},
{
"name": "CVE-2025-21638",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21638"
},
{
"name": "CVE-2024-56568",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-56568"
},
{
"name": "CVE-2024-57889",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-57889"
},
{
"name": "CVE-2024-57798",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-57798"
},
{
"name": "CVE-2024-56539",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-56539"
},
{
"name": "CVE-2024-41055",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41055"
},
{
"name": "CVE-2024-56720",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-56720"
},
{
"name": "CVE-2024-35863",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-35863"
},
{
"name": "CVE-2024-53104",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-53104"
},
{
"name": "CVE-2024-50073",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50073"
},
{
"name": "CVE-2024-53147",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-53147"
},
{
"name": "CVE-2024-45009",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-45009"
},
{
"name": "CVE-2024-56605",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-56605"
},
{
"name": "CVE-2024-56647",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-56647"
},
{
"name": "CVE-2024-57893",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-57893"
},
{
"name": "CVE-2024-26810",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-26810"
},
{
"name": "CVE-2025-21700",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21700"
},
{
"name": "CVE-2025-21680",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21680"
},
{
"name": "CVE-2025-21687",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21687"
},
{
"name": "CVE-2025-21639",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-21639"
},
{
"name": "CVE-2024-56650",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-56650"
},
{
"name": "CVE-2023-52924",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52924"
}
],
"links": [],
"reference": "CERTFR-2025-AVI-0183",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2025-03-07T00:00:00.000000"
}
],
"risks": [
{
"description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "D\u00e9ni de service"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits SUSE. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une \u00e9l\u00e9vation de privil\u00e8ges, une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et une atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux de SUSE",
"vendor_advisories": [
{
"published_at": "2025-03-05",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2025:0784-1",
"url": "https://www.suse.com/support/update/announcement/2025/suse-su-20250784-1"
},
{
"published_at": "2025-03-03",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2025:0771-1",
"url": "https://www.suse.com/support/update/announcement/2025/suse-su-20250771-1"
}
]
}
CVE-2024-45010 (GCVE-0-2024-45010)
Vulnerability from cvelistv5 – Published: 2024-09-11 15:13 – Updated: 2026-05-11 20:33
VLAI
EPSS
VEX
Title
mptcp: pm: only mark 'subflow' endp as available
Summary
In the Linux kernel, the following vulnerability has been resolved:
mptcp: pm: only mark 'subflow' endp as available
Adding the following warning ...
WARN_ON_ONCE(msk->pm.local_addr_used == 0)
... before decrementing the local_addr_used counter helped to find a bug
when running the "remove single address" subtest from the mptcp_join.sh
selftests.
Removing a 'signal' endpoint will trigger the removal of all subflows
linked to this endpoint via mptcp_pm_nl_rm_addr_or_subflow() with
rm_type == MPTCP_MIB_RMSUBFLOW. This will decrement the local_addr_used
counter, which is wrong in this case because this counter is linked to
'subflow' endpoints, and here it is a 'signal' endpoint that is being
removed.
Now, the counter is decremented, only if the ID is being used outside
of mptcp_pm_nl_rm_addr_or_subflow(), only for 'subflow' endpoints, and
if the ID is not 0 -- local_addr_used is not taking into account these
ones. This marking of the ID as being available, and the decrement is
done no matter if a subflow using this ID is currently available,
because the subflow could have been closed before.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
06faa22710342bca5e9c249634199c650799fce6 , < 7fdc870d08960961408a44c569f20f50940e7d4f
(git)
Affected: 06faa22710342bca5e9c249634199c650799fce6 , < 43cf912b0b0fc7b4fd12cbc735d1f5afb8e1322d (git) Affected: 06faa22710342bca5e9c249634199c650799fce6 , < 9849cfc67383ceb167155186f8f8fe8a896b60b3 (git) Affected: 06faa22710342bca5e9c249634199c650799fce6 , < 322ea3778965da72862cca2a0c50253aacf65fe6 (git) |
|
| Linux | Linux |
Affected:
5.13
Unaffected: 0 , < 5.13 (semver) Unaffected: 6.1.108 , ≤ 6.1.* (semver) Unaffected: 6.6.48 , ≤ 6.6.* (semver) Unaffected: 6.10.7 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix) |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-45010",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-29T15:50:56.116338Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-09-29T15:51:10.555Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2025-11-03T22:15:16.770Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/mptcp/pm_netlink.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "7fdc870d08960961408a44c569f20f50940e7d4f",
"status": "affected",
"version": "06faa22710342bca5e9c249634199c650799fce6",
"versionType": "git"
},
{
"lessThan": "43cf912b0b0fc7b4fd12cbc735d1f5afb8e1322d",
"status": "affected",
"version": "06faa22710342bca5e9c249634199c650799fce6",
"versionType": "git"
},
{
"lessThan": "9849cfc67383ceb167155186f8f8fe8a896b60b3",
"status": "affected",
"version": "06faa22710342bca5e9c249634199c650799fce6",
"versionType": "git"
},
{
"lessThan": "322ea3778965da72862cca2a0c50253aacf65fe6",
"status": "affected",
"version": "06faa22710342bca5e9c249634199c650799fce6",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/mptcp/pm_netlink.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.13"
},
{
"lessThan": "5.13",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.108",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.48",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.10.*",
"status": "unaffected",
"version": "6.10.7",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.11",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.108",
"versionStartIncluding": "5.13",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.48",
"versionStartIncluding": "5.13",
"vulnerable": true
},
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CVE-2024-47701 (GCVE-0-2024-47701)
Vulnerability from cvelistv5 – Published: 2024-10-21 11:53 – Updated: 2026-08-05 11:39
VLAI
EPSS
VEX
Title
ext4: avoid OOB when system.data xattr changes underneath the filesystem
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: avoid OOB when system.data xattr changes underneath the filesystem
When looking up for an entry in an inlined directory, if e_value_offs is
changed underneath the filesystem by some change in the block device, it
will lead to an out-of-bounds access that KASAN detects as an UAF.
EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
loop0: detected capacity change from 2048 to 2047
==================================================================
BUG: KASAN: use-after-free in ext4_search_dir+0xf2/0x1c0 fs/ext4/namei.c:1500
Read of size 1 at addr ffff88803e91130f by task syz-executor269/5103
CPU: 0 UID: 0 PID: 5103 Comm: syz-executor269 Not tainted 6.11.0-rc4-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:93 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
print_address_description mm/kasan/report.c:377 [inline]
print_report+0x169/0x550 mm/kasan/report.c:488
kasan_report+0x143/0x180 mm/kasan/report.c:601
ext4_search_dir+0xf2/0x1c0 fs/ext4/namei.c:1500
ext4_find_inline_entry+0x4be/0x5e0 fs/ext4/inline.c:1697
__ext4_find_entry+0x2b4/0x1b30 fs/ext4/namei.c:1573
ext4_lookup_entry fs/ext4/namei.c:1727 [inline]
ext4_lookup+0x15f/0x750 fs/ext4/namei.c:1795
lookup_one_qstr_excl+0x11f/0x260 fs/namei.c:1633
filename_create+0x297/0x540 fs/namei.c:3980
do_symlinkat+0xf9/0x3a0 fs/namei.c:4587
__do_sys_symlinkat fs/namei.c:4610 [inline]
__se_sys_symlinkat fs/namei.c:4607 [inline]
__x64_sys_symlinkat+0x95/0xb0 fs/namei.c:4607
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3e73ced469
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff4d40c258 EFLAGS: 00000246 ORIG_RAX: 000000000000010a
RAX: ffffffffffffffda RBX: 0032656c69662f2e RCX: 00007f3e73ced469
RDX: 0000000020000200 RSI: 00000000ffffff9c RDI: 00000000200001c0
RBP: 0000000000000000 R08: 00007fff4d40c290 R09: 00007fff4d40c290
R10: 0023706f6f6c2f76 R11: 0000000000000246 R12: 00007fff4d40c27c
R13: 0000000000000003 R14: 431bde82d7b634db R15: 00007fff4d40c2b0
</TASK>
Calling ext4_xattr_ibody_find right after reading the inode with
ext4_get_inode_loc will lead to a check of the validity of the xattrs,
avoiding this problem.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
14 references
Impacted products
9 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
e8e948e7802a2ab05c146d3e72a39b93b5718236 , < 5b076d37e8d99918e9294bd6b35a8bbb436819b0
(git)
Affected: e8e948e7802a2ab05c146d3e72a39b93b5718236 , < 8adf0eb4e361a9e060d54f4bd0ac9c5d85277d20 (git) Affected: e8e948e7802a2ab05c146d3e72a39b93b5718236 , < 7fc22c3b3ffc0e952f5e0062dd11aa6ae76affba (git) Affected: e8e948e7802a2ab05c146d3e72a39b93b5718236 , < be2e9b111e2790962cc66a177869b4e9717b4e29 (git) Affected: e8e948e7802a2ab05c146d3e72a39b93b5718236 , < ea32883e4a03ed575a2eb7a66542022312bde477 (git) Affected: e8e948e7802a2ab05c146d3e72a39b93b5718236 , < 2a6579ef5f2576a940125729f7409cc182f1c8df (git) Affected: e8e948e7802a2ab05c146d3e72a39b93b5718236 , < 371d0bacecd529f887ea2547333d9173e7bcdc0a (git) Affected: e8e948e7802a2ab05c146d3e72a39b93b5718236 , < ccb8c18076e2e630fea23fbec583cdad61787fc5 (git) Affected: e8e948e7802a2ab05c146d3e72a39b93b5718236 , < c6b72f5d82b1017bad80f9ebf502832fc321d796 (git) |
|
| Linux | Linux |
Affected:
3.8
Unaffected: 0 , < 3.8 (semver) Unaffected: 4.19.323 , ≤ 4.19.* (semver) Unaffected: 5.4.285 , ≤ 5.4.* (semver) Unaffected: 5.10.227 , ≤ 5.10.* (semver) Unaffected: 5.15.168 , ≤ 5.15.* (semver) Unaffected: 6.1.113 , ≤ 6.1.* (semver) Unaffected: 6.6.54 , ≤ 6.6.* (semver) Unaffected: 6.10.13 , ≤ 6.10.* (semver) Unaffected: 6.11.2 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix) |
|
| Siemens | RUGGEDCOM RST2428P |
Affected:
0 , < V3.2
(custom)
|
|
| Siemens | SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family |
Affected:
0 , < V3.2
(custom)
|
|
| Siemens | SCALANCE XCM-/XRM-/XCH-/XRH-300 family |
Affected:
0 , < V3.2
(custom)
|
|
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: avoid OOB when system.data xattr changes underneath the filesystem\n\nWhen looking up for an entry in an inlined directory, if e_value_offs is\nchanged underneath the filesystem by some change in the block device, it\nwill lead to an out-of-bounds access that KASAN detects as an UAF.\n\nEXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.\nloop0: detected capacity change from 2048 to 2047\n==================================================================\nBUG: KASAN: use-after-free in ext4_search_dir+0xf2/0x1c0 fs/ext4/namei.c:1500\nRead of size 1 at addr ffff88803e91130f by task syz-executor269/5103\n\nCPU: 0 UID: 0 PID: 5103 Comm: syz-executor269 Not tainted 6.11.0-rc4-syzkaller #0\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:93 [inline]\n dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119\n print_address_description mm/kasan/report.c:377 [inline]\n print_report+0x169/0x550 mm/kasan/report.c:488\n kasan_report+0x143/0x180 mm/kasan/report.c:601\n ext4_search_dir+0xf2/0x1c0 fs/ext4/namei.c:1500\n ext4_find_inline_entry+0x4be/0x5e0 fs/ext4/inline.c:1697\n __ext4_find_entry+0x2b4/0x1b30 fs/ext4/namei.c:1573\n ext4_lookup_entry fs/ext4/namei.c:1727 [inline]\n ext4_lookup+0x15f/0x750 fs/ext4/namei.c:1795\n lookup_one_qstr_excl+0x11f/0x260 fs/namei.c:1633\n filename_create+0x297/0x540 fs/namei.c:3980\n do_symlinkat+0xf9/0x3a0 fs/namei.c:4587\n __do_sys_symlinkat fs/namei.c:4610 [inline]\n __se_sys_symlinkat fs/namei.c:4607 [inline]\n __x64_sys_symlinkat+0x95/0xb0 fs/namei.c:4607\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f3e73ced469\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007fff4d40c258 EFLAGS: 00000246 ORIG_RAX: 000000000000010a\nRAX: ffffffffffffffda RBX: 0032656c69662f2e RCX: 00007f3e73ced469\nRDX: 0000000020000200 RSI: 00000000ffffff9c RDI: 00000000200001c0\nRBP: 0000000000000000 R08: 00007fff4d40c290 R09: 00007fff4d40c290\nR10: 0023706f6f6c2f76 R11: 0000000000000246 R12: 00007fff4d40c27c\nR13: 0000000000000003 R14: 431bde82d7b634db R15: 00007fff4d40c2b0\n \u003c/TASK\u003e\n\nCalling ext4_xattr_ibody_find right after reading the inode with\next4_get_inode_loc will lead to a check of the validity of the xattrs,\navoiding this problem."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The vulnerable path is reached through ordinary local filesystem syscalls (symlinkat/open/rename/unlink triggering ext4_lookup \u2192 __ext4_find_entry \u2192 ext4_find_inline_entry) on a mounted ext4 image whose backing store the attacker can modify. No network or remote protocol is involved.\nAC:L - The attacker controls both halves: the on-disk xattr bytes (backing file/removable device they own) and the cache invalidation that forces the stale inode block to be re-read (loop capacity change, BLKFLSBUF, or induced memory pressure), then issues the lookup at will; syzbot reproduces it deterministically with a C reproducer.\nPR:L - An unprivileged local user can loop-mount their own ext4 image on typical desktop/CI systems (udisks2 loop-setup and filesystem-mount are allow_active) or supply auto-mounted removable media, and retains write access to the backing store; the lookup that triggers the OOB requires no privileges at all.\nUI:N - In the automount/self-mount scenario the attacker performs every step themselves \u2014 attach or loop-mount the image, mutate the backing bytes, invalidate the cache, then look up a name \u2014 with no action required from any other user.\nS:U - The out-of-bounds access and its consequences are confined to the kernel\u0027s own memory and the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - e_value_offs is a 16-bit attacker-chosen value, so ext4_search_dir reads up to ~64KB past the inode-table buffer into adjacent slab/page-cache memory; the same unvalidated offset is used by ext4_read_inline_data\u0027s memcpy, and matched \"directory entries\" expose adjacent kernel memory contents (names, inode numbers) to userspace.\nI:H - The out-of-bounds entry pointer is handed to writers \u2014 ext4_setent() stores an attacker-chosen inode number plus file_type at that address during rename, and ext4_generic_delete_entry() zeroes/rewrites it on unlink \u2014 giving a semi-controlled out-of-bounds kernel write that is leverageable against heap-sprayed adjacent objects.\nA:H - The out-of-bounds access is reported by KASAN as a use-after-free read and can hit unmapped or poisoned memory and corrupt neighbouring kernel objects, resulting in an oops or panic that takes down the whole system."
}
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"url": "https://git.kernel.org/stable/c/5b076d37e8d99918e9294bd6b35a8bbb436819b0"
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"url": "https://git.kernel.org/stable/c/7fc22c3b3ffc0e952f5e0062dd11aa6ae76affba"
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"url": "https://git.kernel.org/stable/c/be2e9b111e2790962cc66a177869b4e9717b4e29"
},
{
"url": "https://git.kernel.org/stable/c/ea32883e4a03ed575a2eb7a66542022312bde477"
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{
"url": "https://git.kernel.org/stable/c/2a6579ef5f2576a940125729f7409cc182f1c8df"
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"url": "https://git.kernel.org/stable/c/371d0bacecd529f887ea2547333d9173e7bcdc0a"
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"url": "https://git.kernel.org/stable/c/ccb8c18076e2e630fea23fbec583cdad61787fc5"
},
{
"url": "https://git.kernel.org/stable/c/c6b72f5d82b1017bad80f9ebf502832fc321d796"
}
],
"title": "ext4: avoid OOB when system.data xattr changes underneath the filesystem",
"x_generator": {
"engine": "bippy-1.2.0"
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"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-47701",
"datePublished": "2024-10-21T11:53:37.276Z",
"dateReserved": "2024-09-30T16:00:12.945Z",
"dateUpdated": "2026-08-05T11:39:32.569Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2024-49884 (GCVE-0-2024-49884)
Vulnerability from cvelistv5 – Published: 2024-10-21 18:01 – Updated: 2026-08-05 11:40
VLAI
EPSS
VEX
Title
ext4: fix slab-use-after-free in ext4_split_extent_at()
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix slab-use-after-free in ext4_split_extent_at()
We hit the following use-after-free:
==================================================================
BUG: KASAN: slab-use-after-free in ext4_split_extent_at+0xba8/0xcc0
Read of size 2 at addr ffff88810548ed08 by task kworker/u20:0/40
CPU: 0 PID: 40 Comm: kworker/u20:0 Not tainted 6.9.0-dirty #724
Call Trace:
<TASK>
kasan_report+0x93/0xc0
ext4_split_extent_at+0xba8/0xcc0
ext4_split_extent.isra.0+0x18f/0x500
ext4_split_convert_extents+0x275/0x750
ext4_ext_handle_unwritten_extents+0x73e/0x1580
ext4_ext_map_blocks+0xe20/0x2dc0
ext4_map_blocks+0x724/0x1700
ext4_do_writepages+0x12d6/0x2a70
[...]
Allocated by task 40:
__kmalloc_noprof+0x1ac/0x480
ext4_find_extent+0xf3b/0x1e70
ext4_ext_map_blocks+0x188/0x2dc0
ext4_map_blocks+0x724/0x1700
ext4_do_writepages+0x12d6/0x2a70
[...]
Freed by task 40:
kfree+0xf1/0x2b0
ext4_find_extent+0xa71/0x1e70
ext4_ext_insert_extent+0xa22/0x3260
ext4_split_extent_at+0x3ef/0xcc0
ext4_split_extent.isra.0+0x18f/0x500
ext4_split_convert_extents+0x275/0x750
ext4_ext_handle_unwritten_extents+0x73e/0x1580
ext4_ext_map_blocks+0xe20/0x2dc0
ext4_map_blocks+0x724/0x1700
ext4_do_writepages+0x12d6/0x2a70
[...]
==================================================================
The flow of issue triggering is as follows:
ext4_split_extent_at
path = *ppath
ext4_ext_insert_extent(ppath)
ext4_ext_create_new_leaf(ppath)
ext4_find_extent(orig_path)
path = *orig_path
read_extent_tree_block
// return -ENOMEM or -EIO
ext4_free_ext_path(path)
kfree(path)
*orig_path = NULL
a. If err is -ENOMEM:
ext4_ext_dirty(path + path->p_depth)
// path use-after-free !!!
b. If err is -EIO and we have EXT_DEBUG defined:
ext4_ext_show_leaf(path)
eh = path[depth].p_hdr
// path also use-after-free !!!
So when trying to zeroout or fix the extent length, call ext4_find_extent()
to update the path.
In addition we use *ppath directly as an ext4_ext_show_leaf() input to
avoid possible use-after-free when EXT_DEBUG is defined, and to avoid
unnecessary path updates.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
11 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
dfe5080939ea4686b3414b5d970a9b26733c57a4 , < 393a46f60ea4f249dc9d496d4eb2d542f5e11ade
(git)
Affected: dfe5080939ea4686b3414b5d970a9b26733c57a4 , < 448100a29395b0c8b4c42967155849fe0fbe808f (git) Affected: dfe5080939ea4686b3414b5d970a9b26733c57a4 , < e52f933598b781d291b9297e39c463536da0e185 (git) Affected: dfe5080939ea4686b3414b5d970a9b26733c57a4 , < cafcc1bd62934547c76abf46c6d0d54f135006fe (git) Affected: dfe5080939ea4686b3414b5d970a9b26733c57a4 , < a5401d4c3e2a3d25643c567d26e6de327774a2c9 (git) Affected: dfe5080939ea4686b3414b5d970a9b26733c57a4 , < 8fe117790b37c84c651e2bad9efc0e7fda73c0e3 (git) Affected: dfe5080939ea4686b3414b5d970a9b26733c57a4 , < 5d949ea75bb529ea6342e83465938a3b0ac51238 (git) Affected: dfe5080939ea4686b3414b5d970a9b26733c57a4 , < 915ac3630488af0ca194dc63b86d99802b4f6e18 (git) Affected: dfe5080939ea4686b3414b5d970a9b26733c57a4 , < c26ab35702f8cd0cdc78f96aa5856bfb77be798f (git) |
|
| Linux | Linux |
Affected:
3.18
Unaffected: 0 , < 3.18 (semver) Unaffected: 4.19.323 , ≤ 4.19.* (semver) Unaffected: 5.4.290 , ≤ 5.4.* (semver) Unaffected: 5.10.227 , ≤ 5.10.* (semver) Unaffected: 5.15.168 , ≤ 5.15.* (semver) Unaffected: 6.1.113 , ≤ 6.1.* (semver) Unaffected: 6.6.55 , ≤ 6.6.* (semver) Unaffected: 6.10.14 , ≤ 6.10.* (semver) Unaffected: 6.11.3 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix) |
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"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
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"defaultStatus": "unaffected",
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix slab-use-after-free in ext4_split_extent_at()\n\nWe hit the following use-after-free:\n\n==================================================================\nBUG: KASAN: slab-use-after-free in ext4_split_extent_at+0xba8/0xcc0\nRead of size 2 at addr ffff88810548ed08 by task kworker/u20:0/40\nCPU: 0 PID: 40 Comm: kworker/u20:0 Not tainted 6.9.0-dirty #724\nCall Trace:\n \u003cTASK\u003e\n kasan_report+0x93/0xc0\n ext4_split_extent_at+0xba8/0xcc0\n ext4_split_extent.isra.0+0x18f/0x500\n ext4_split_convert_extents+0x275/0x750\n ext4_ext_handle_unwritten_extents+0x73e/0x1580\n ext4_ext_map_blocks+0xe20/0x2dc0\n ext4_map_blocks+0x724/0x1700\n ext4_do_writepages+0x12d6/0x2a70\n[...]\n\nAllocated by task 40:\n __kmalloc_noprof+0x1ac/0x480\n ext4_find_extent+0xf3b/0x1e70\n ext4_ext_map_blocks+0x188/0x2dc0\n ext4_map_blocks+0x724/0x1700\n ext4_do_writepages+0x12d6/0x2a70\n[...]\n\nFreed by task 40:\n kfree+0xf1/0x2b0\n ext4_find_extent+0xa71/0x1e70\n ext4_ext_insert_extent+0xa22/0x3260\n ext4_split_extent_at+0x3ef/0xcc0\n ext4_split_extent.isra.0+0x18f/0x500\n ext4_split_convert_extents+0x275/0x750\n ext4_ext_handle_unwritten_extents+0x73e/0x1580\n ext4_ext_map_blocks+0xe20/0x2dc0\n ext4_map_blocks+0x724/0x1700\n ext4_do_writepages+0x12d6/0x2a70\n[...]\n==================================================================\n\nThe flow of issue triggering is as follows:\n\next4_split_extent_at\n path = *ppath\n ext4_ext_insert_extent(ppath)\n ext4_ext_create_new_leaf(ppath)\n ext4_find_extent(orig_path)\n path = *orig_path\n read_extent_tree_block\n // return -ENOMEM or -EIO\n ext4_free_ext_path(path)\n kfree(path)\n *orig_path = NULL\n a. If err is -ENOMEM:\n ext4_ext_dirty(path + path-\u003ep_depth)\n // path use-after-free !!!\n b. If err is -EIO and we have EXT_DEBUG defined:\n ext4_ext_show_leaf(path)\n eh = path[depth].p_hdr\n // path also use-after-free !!!\n\nSo when trying to zeroout or fix the extent length, call ext4_find_extent()\nto update the path.\n\nIn addition we use *ppath directly as an ext4_ext_show_leaf() input to\navoid possible use-after-free when EXT_DEBUG is defined, and to avoid\nunnecessary path updates."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The vulnerable code is the ext4 extent-splitting path reached through ordinary file I/O (write/fallocate plus writeback) on a locally mounted filesystem. No network protocol handler is involved, so local access to the system is required.\nAC:L - Every precondition is attacker-shaped: the extent-tree depth and fullness are controlled by fragmenting the attacker\u0027s own file, writeback is forced on demand with fsync/sync_file_range, and the -ENOMEM that triggers the fallthrough is inducible by an unprivileged task creating memory pressure against GFP_NOFS allocations, which cannot fall back on filesystem reclaim. The reallocation window is widened by the sleeping ext4_ext_zeroout() block I/O on the same code path.\nPR:L - Only an unprivileged local account with write access to any ext4 file (world-writable /tmp or the user\u0027s home directory) is needed; no capability, mount privilege, or admin right is checked anywhere along ext4_do_writepages \u2192 ext4_ext_map_blocks \u2192 ext4_split_extent_at.\nUI:N - The attacker operates entirely on files they own and triggers writeback themselves; no victim action, mount of a crafted image, or administrator involvement is required.\nS:U - The use-after-free corrupts kernel slab memory within the same kernel security authority, with no crossing of a VM, IOMMU, or hypervisor boundary.\nC:H - The freed struct ext4_ext_path array lives in a sprayable general kmalloc cache, and the stale p_depth/p_bh fields are dereferenced, so a reallocated object lets the attacker point ext4 at arbitrary kernel addresses and observe results, giving disclosure of arbitrary kernel memory.\nI:H - __ext4_ext_dirty() performs set_buffer_verified() (an arbitrary bit set) and ext4_extent_block_csum_set() (a controlled 4-byte write through a forged buffer_head b_data pointer) on the reallocated object, a classic UAF write primitive usable for control-flow hijack; ext4_ext_zeroout() on the stale extent can additionally zero incorrect on-disk blocks.\nA:H - Even without successful heap grooming the dangling path dereference reliably oopses or panics the kernel in a writeback kworker, as demonstrated by the reported KASAN slab-use-after-free, and it can be retriggered at will."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T11:40:22.502Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/393a46f60ea4f249dc9d496d4eb2d542f5e11ade"
},
{
"url": "https://git.kernel.org/stable/c/448100a29395b0c8b4c42967155849fe0fbe808f"
},
{
"url": "https://git.kernel.org/stable/c/e52f933598b781d291b9297e39c463536da0e185"
},
{
"url": "https://git.kernel.org/stable/c/cafcc1bd62934547c76abf46c6d0d54f135006fe"
},
{
"url": "https://git.kernel.org/stable/c/a5401d4c3e2a3d25643c567d26e6de327774a2c9"
},
{
"url": "https://git.kernel.org/stable/c/8fe117790b37c84c651e2bad9efc0e7fda73c0e3"
},
{
"url": "https://git.kernel.org/stable/c/5d949ea75bb529ea6342e83465938a3b0ac51238"
},
{
"url": "https://git.kernel.org/stable/c/915ac3630488af0ca194dc63b86d99802b4f6e18"
},
{
"url": "https://git.kernel.org/stable/c/c26ab35702f8cd0cdc78f96aa5856bfb77be798f"
}
],
"title": "ext4: fix slab-use-after-free in ext4_split_extent_at()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-49884",
"datePublished": "2024-10-21T18:01:21.517Z",
"dateReserved": "2024-10-21T12:17:06.022Z",
"dateUpdated": "2026-08-05T11:40:22.502Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2024-49950 (GCVE-0-2024-49950)
Vulnerability from cvelistv5 – Published: 2024-10-21 18:02 – Updated: 2026-08-05 11:40
VLAI
EPSS
VEX
Title
Bluetooth: L2CAP: Fix uaf in l2cap_connect
Summary
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: L2CAP: Fix uaf in l2cap_connect
[Syzbot reported]
BUG: KASAN: slab-use-after-free in l2cap_connect.constprop.0+0x10d8/0x1270 net/bluetooth/l2cap_core.c:3949
Read of size 8 at addr ffff8880241e9800 by task kworker/u9:0/54
CPU: 0 UID: 0 PID: 54 Comm: kworker/u9:0 Not tainted 6.11.0-rc6-syzkaller-00268-g788220eee30d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: hci2 hci_rx_work
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:93 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:119
print_address_description mm/kasan/report.c:377 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:488
kasan_report+0xd9/0x110 mm/kasan/report.c:601
l2cap_connect.constprop.0+0x10d8/0x1270 net/bluetooth/l2cap_core.c:3949
l2cap_connect_req net/bluetooth/l2cap_core.c:4080 [inline]
l2cap_bredr_sig_cmd net/bluetooth/l2cap_core.c:4772 [inline]
l2cap_sig_channel net/bluetooth/l2cap_core.c:5543 [inline]
l2cap_recv_frame+0xf0b/0x8eb0 net/bluetooth/l2cap_core.c:6825
l2cap_recv_acldata+0x9b4/0xb70 net/bluetooth/l2cap_core.c:7514
hci_acldata_packet net/bluetooth/hci_core.c:3791 [inline]
hci_rx_work+0xaab/0x1610 net/bluetooth/hci_core.c:4028
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xed0 kernel/workqueue.c:3389
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
...
Freed by task 5245:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:579
poison_slab_object+0xf7/0x160 mm/kasan/common.c:240
__kasan_slab_free+0x32/0x50 mm/kasan/common.c:256
kasan_slab_free include/linux/kasan.h:184 [inline]
slab_free_hook mm/slub.c:2256 [inline]
slab_free mm/slub.c:4477 [inline]
kfree+0x12a/0x3b0 mm/slub.c:4598
l2cap_conn_free net/bluetooth/l2cap_core.c:1810 [inline]
kref_put include/linux/kref.h:65 [inline]
l2cap_conn_put net/bluetooth/l2cap_core.c:1822 [inline]
l2cap_conn_del+0x59d/0x730 net/bluetooth/l2cap_core.c:1802
l2cap_connect_cfm+0x9e6/0xf80 net/bluetooth/l2cap_core.c:7241
hci_connect_cfm include/net/bluetooth/hci_core.h:1960 [inline]
hci_conn_failed+0x1c3/0x370 net/bluetooth/hci_conn.c:1265
hci_abort_conn_sync+0x75a/0xb50 net/bluetooth/hci_sync.c:5583
abort_conn_sync+0x197/0x360 net/bluetooth/hci_conn.c:2917
hci_cmd_sync_work+0x1a4/0x410 net/bluetooth/hci_sync.c:328
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xed0 kernel/workqueue.c:3389
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
7 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
7b064edae38d62d8587a8c574f93b53ce75ae749 , < 686e05c9dbd68766c6bda5f31f7e077f36a7fb29
(git)
Affected: 7b064edae38d62d8587a8c574f93b53ce75ae749 , < b22346eec479a30bfa4a02ad2c551b54809694d0 (git) Affected: 7b064edae38d62d8587a8c574f93b53ce75ae749 , < b90907696c30172b809aa3dd2f0caffae761e4c6 (git) Affected: 7b064edae38d62d8587a8c574f93b53ce75ae749 , < 78d30ce16fdf9c301bcd8b83ce613cea079cea83 (git) Affected: 7b064edae38d62d8587a8c574f93b53ce75ae749 , < a1c6174e23df10b8e5770e82d63bc6e2118a3dc7 (git) Affected: 7b064edae38d62d8587a8c574f93b53ce75ae749 , < 333b4fd11e89b29c84c269123f871883a30be586 (git) |
|
| Linux | Linux |
Affected:
3.8
Unaffected: 0 , < 3.8 (semver) Unaffected: 5.15.174 , ≤ 5.15.* (semver) Unaffected: 6.1.118 , ≤ 6.1.* (semver) Unaffected: 6.6.55 , ≤ 6.6.* (semver) Unaffected: 6.10.14 , ≤ 6.10.* (semver) Unaffected: 6.11.3 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix) |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-49950",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-10-22T13:36:31.459862Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-10-22T13:38:49.238Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2025-11-03T22:23:30.897Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/bluetooth/hci_core.c",
"net/bluetooth/hci_event.c",
"net/bluetooth/l2cap_core.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "686e05c9dbd68766c6bda5f31f7e077f36a7fb29",
"status": "affected",
"version": "7b064edae38d62d8587a8c574f93b53ce75ae749",
"versionType": "git"
},
{
"lessThan": "b22346eec479a30bfa4a02ad2c551b54809694d0",
"status": "affected",
"version": "7b064edae38d62d8587a8c574f93b53ce75ae749",
"versionType": "git"
},
{
"lessThan": "b90907696c30172b809aa3dd2f0caffae761e4c6",
"status": "affected",
"version": "7b064edae38d62d8587a8c574f93b53ce75ae749",
"versionType": "git"
},
{
"lessThan": "78d30ce16fdf9c301bcd8b83ce613cea079cea83",
"status": "affected",
"version": "7b064edae38d62d8587a8c574f93b53ce75ae749",
"versionType": "git"
},
{
"lessThan": "a1c6174e23df10b8e5770e82d63bc6e2118a3dc7",
"status": "affected",
"version": "7b064edae38d62d8587a8c574f93b53ce75ae749",
"versionType": "git"
},
{
"lessThan": "333b4fd11e89b29c84c269123f871883a30be586",
"status": "affected",
"version": "7b064edae38d62d8587a8c574f93b53ce75ae749",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/bluetooth/hci_core.c",
"net/bluetooth/hci_event.c",
"net/bluetooth/l2cap_core.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "3.8"
},
{
"lessThan": "3.8",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.174",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.118",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.55",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.10.*",
"status": "unaffected",
"version": "6.10.14",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.11.*",
"status": "unaffected",
"version": "6.11.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.12",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.174",
"versionStartIncluding": "3.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.118",
"versionStartIncluding": "3.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.55",
"versionStartIncluding": "3.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.10.14",
"versionStartIncluding": "3.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.11.3",
"versionStartIncluding": "3.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12",
"versionStartIncluding": "3.8",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix uaf in l2cap_connect\n\n[Syzbot reported]\nBUG: KASAN: slab-use-after-free in l2cap_connect.constprop.0+0x10d8/0x1270 net/bluetooth/l2cap_core.c:3949\nRead of size 8 at addr ffff8880241e9800 by task kworker/u9:0/54\n\nCPU: 0 UID: 0 PID: 54 Comm: kworker/u9:0 Not tainted 6.11.0-rc6-syzkaller-00268-g788220eee30d #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024\nWorkqueue: hci2 hci_rx_work\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:93 [inline]\n dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:119\n print_address_description mm/kasan/report.c:377 [inline]\n print_report+0xc3/0x620 mm/kasan/report.c:488\n kasan_report+0xd9/0x110 mm/kasan/report.c:601\n l2cap_connect.constprop.0+0x10d8/0x1270 net/bluetooth/l2cap_core.c:3949\n l2cap_connect_req net/bluetooth/l2cap_core.c:4080 [inline]\n l2cap_bredr_sig_cmd net/bluetooth/l2cap_core.c:4772 [inline]\n l2cap_sig_channel net/bluetooth/l2cap_core.c:5543 [inline]\n l2cap_recv_frame+0xf0b/0x8eb0 net/bluetooth/l2cap_core.c:6825\n l2cap_recv_acldata+0x9b4/0xb70 net/bluetooth/l2cap_core.c:7514\n hci_acldata_packet net/bluetooth/hci_core.c:3791 [inline]\n hci_rx_work+0xaab/0x1610 net/bluetooth/hci_core.c:4028\n process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231\n process_scheduled_works kernel/workqueue.c:3312 [inline]\n worker_thread+0x6c8/0xed0 kernel/workqueue.c:3389\n kthread+0x2c1/0x3a0 kernel/kthread.c:389\n ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244\n...\n\nFreed by task 5245:\n kasan_save_stack+0x33/0x60 mm/kasan/common.c:47\n kasan_save_track+0x14/0x30 mm/kasan/common.c:68\n kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:579\n poison_slab_object+0xf7/0x160 mm/kasan/common.c:240\n __kasan_slab_free+0x32/0x50 mm/kasan/common.c:256\n kasan_slab_free include/linux/kasan.h:184 [inline]\n slab_free_hook mm/slub.c:2256 [inline]\n slab_free mm/slub.c:4477 [inline]\n kfree+0x12a/0x3b0 mm/slub.c:4598\n l2cap_conn_free net/bluetooth/l2cap_core.c:1810 [inline]\n kref_put include/linux/kref.h:65 [inline]\n l2cap_conn_put net/bluetooth/l2cap_core.c:1822 [inline]\n l2cap_conn_del+0x59d/0x730 net/bluetooth/l2cap_core.c:1802\n l2cap_connect_cfm+0x9e6/0xf80 net/bluetooth/l2cap_core.c:7241\n hci_connect_cfm include/net/bluetooth/hci_core.h:1960 [inline]\n hci_conn_failed+0x1c3/0x370 net/bluetooth/hci_conn.c:1265\n hci_abort_conn_sync+0x75a/0xb50 net/bluetooth/hci_sync.c:5583\n abort_conn_sync+0x197/0x360 net/bluetooth/hci_conn.c:2917\n hci_cmd_sync_work+0x1a4/0x410 net/bluetooth/hci_sync.c:328\n process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231\n process_scheduled_works kernel/workqueue.c:3312 [inline]\n worker_thread+0x6c8/0xed0 kernel/workqueue.c:3389\n kthread+0x2c1/0x3a0 kernel/kthread.c:389\n ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244"
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:A - The vulnerable code is reached purely from ACL data received from a remote Bluetooth peer on the BR/EDR L2CAP signalling channel (hci_rx_work \u2192 hci_acldata_packet \u2192 l2cap_recv_acldata \u2192 l2cap_sig_channel \u2192 l2cap_connect_req). Bluetooth range constitutes an adjacent network.\nAC:L - The remote peer controls both sides of the race \u2014 it chooses when to inject the L2CAP connect request relative to link setup (the exact condition named in the Fixes: commit) and can induce the concurrent connection abort by failing the security escalation its own request triggers or by repeated connect/teardown. The attempt is free to repeat until it wins.\nPR:N - L2CAP signalling commands are processed on an unauthenticated, unpaired ACL link; the hci_conn_check_link_mode() security check sits inside l2cap_connect() and executes only after the use-after-free dereference. No credentials or local account are needed.\nUI:N - Processing of an inbound ACL connection and its L2CAP connect request happens automatically in the kernel rx workqueue on any connectable device. No victim action is required.\nS:U - The corruption and its consequences are confined to the kernel\u0027s own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The freed struct l2cap_conn is read back and its embedded pointers (conn-\u003ehcon, conn-\u003ehcon-\u003ehdev) are chased; since the object comes from a general kmalloc cache reclaimable by sprayed data, an attacker can steer those dereferences to disclose arbitrary kernel memory.\nI:H - Execution continues writing into the freed object \u2014 conn-\u003einfo_state, conn-\u003einfo_ident, conn-\u003ehcon-\u003edisc_timeout, a list_add into freed conn-\u003echan_l, and schedule_delayed_work() on a work_struct with an attacker-reclaimable function pointer \u2014 giving a write and control-flow-hijack primitive.\nA:H - The use-after-free reliably oopses the kernel in the Bluetooth rx workqueue (as KASAN reported), and mutex_lock on freed memory plus a queued timer in reclaimed slab cause panics or corruption-induced crashes."
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CVE-2024-50073 (GCVE-0-2024-50073)
Vulnerability from cvelistv5 – Published: 2024-10-29 00:50 – Updated: 2026-08-05 11:41
VLAI
EPSS
VEX
Title
tty: n_gsm: Fix use-after-free in gsm_cleanup_mux
Summary
In the Linux kernel, the following vulnerability has been resolved:
tty: n_gsm: Fix use-after-free in gsm_cleanup_mux
BUG: KASAN: slab-use-after-free in gsm_cleanup_mux+0x77b/0x7b0
drivers/tty/n_gsm.c:3160 [n_gsm]
Read of size 8 at addr ffff88815fe99c00 by task poc/3379
CPU: 0 UID: 0 PID: 3379 Comm: poc Not tainted 6.11.0+ #56
Hardware name: VMware, Inc. VMware Virtual Platform/440BX
Desktop Reference Platform, BIOS 6.00 11/12/2020
Call Trace:
<TASK>
gsm_cleanup_mux+0x77b/0x7b0 drivers/tty/n_gsm.c:3160 [n_gsm]
__pfx_gsm_cleanup_mux+0x10/0x10 drivers/tty/n_gsm.c:3124 [n_gsm]
__pfx_sched_clock_cpu+0x10/0x10 kernel/sched/clock.c:389
update_load_avg+0x1c1/0x27b0 kernel/sched/fair.c:4500
__pfx_min_vruntime_cb_rotate+0x10/0x10 kernel/sched/fair.c:846
__rb_insert_augmented+0x492/0xbf0 lib/rbtree.c:161
gsmld_ioctl+0x395/0x1450 drivers/tty/n_gsm.c:3408 [n_gsm]
_raw_spin_lock_irqsave+0x92/0xf0 arch/x86/include/asm/atomic.h:107
__pfx_gsmld_ioctl+0x10/0x10 drivers/tty/n_gsm.c:3822 [n_gsm]
ktime_get+0x5e/0x140 kernel/time/timekeeping.c:195
ldsem_down_read+0x94/0x4e0 arch/x86/include/asm/atomic64_64.h:79
__pfx_ldsem_down_read+0x10/0x10 drivers/tty/tty_ldsem.c:338
__pfx_do_vfs_ioctl+0x10/0x10 fs/ioctl.c:805
tty_ioctl+0x643/0x1100 drivers/tty/tty_io.c:2818
Allocated by task 65:
gsm_data_alloc.constprop.0+0x27/0x190 drivers/tty/n_gsm.c:926 [n_gsm]
gsm_send+0x2c/0x580 drivers/tty/n_gsm.c:819 [n_gsm]
gsm1_receive+0x547/0xad0 drivers/tty/n_gsm.c:3038 [n_gsm]
gsmld_receive_buf+0x176/0x280 drivers/tty/n_gsm.c:3609 [n_gsm]
tty_ldisc_receive_buf+0x101/0x1e0 drivers/tty/tty_buffer.c:391
tty_port_default_receive_buf+0x61/0xa0 drivers/tty/tty_port.c:39
flush_to_ldisc+0x1b0/0x750 drivers/tty/tty_buffer.c:445
process_scheduled_works+0x2b0/0x10d0 kernel/workqueue.c:3229
worker_thread+0x3dc/0x950 kernel/workqueue.c:3391
kthread+0x2a3/0x370 kernel/kthread.c:389
ret_from_fork+0x2d/0x70 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:257
Freed by task 3367:
kfree+0x126/0x420 mm/slub.c:4580
gsm_cleanup_mux+0x36c/0x7b0 drivers/tty/n_gsm.c:3160 [n_gsm]
gsmld_ioctl+0x395/0x1450 drivers/tty/n_gsm.c:3408 [n_gsm]
tty_ioctl+0x643/0x1100 drivers/tty/tty_io.c:2818
[Analysis]
gsm_msg on the tx_ctrl_list or tx_data_list of gsm_mux
can be freed by multi threads through ioctl,which leads
to the occurrence of uaf. Protect it by gsm tx lock.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
0af021678d5d30c31f5a6b631f404ead3575212a , < bf171b5e86e41de4c1cf32fb7aefa275c3d7de49
(git)
Affected: 0af021678d5d30c31f5a6b631f404ead3575212a , < c29f192e0d44cc1cbaf698fa1ff198f63556691a (git) Affected: 0af021678d5d30c31f5a6b631f404ead3575212a , < 0eec592c6a7460ba795d7de29f3dc95cb5422e62 (git) Affected: 0af021678d5d30c31f5a6b631f404ead3575212a , < 9462f4ca56e7d2430fdb6dcc8498244acbfc4489 (git) Affected: 5020173e7e7725110a8d4be1359bf1dfc4b1814d (git) Affected: c165698c9919b000bdbe73859d3bb7b33bdb9223 (git) Affected: 7962a4b900099cf90e02859bb297f2c618d8d940 (git) Affected: 5.15.209 , < 5.16 (semver) Affected: 5.18.18 , < 5.19 (semver) Affected: 5.19.2 , < 5.20 (semver) |
|
| Linux | Linux |
Affected:
6.0
Unaffected: 0 , < 6.0 (semver) Unaffected: 6.1.114 , ≤ 6.1.* (semver) Unaffected: 6.6.58 , ≤ 6.6.* (semver) Unaffected: 6.11.5 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix) |
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntty: n_gsm: Fix use-after-free in gsm_cleanup_mux\n\nBUG: KASAN: slab-use-after-free in gsm_cleanup_mux+0x77b/0x7b0\ndrivers/tty/n_gsm.c:3160 [n_gsm]\nRead of size 8 at addr ffff88815fe99c00 by task poc/3379\nCPU: 0 UID: 0 PID: 3379 Comm: poc Not tainted 6.11.0+ #56\nHardware name: VMware, Inc. VMware Virtual Platform/440BX\nDesktop Reference Platform, BIOS 6.00 11/12/2020\nCall Trace:\n \u003cTASK\u003e\n gsm_cleanup_mux+0x77b/0x7b0 drivers/tty/n_gsm.c:3160 [n_gsm]\n __pfx_gsm_cleanup_mux+0x10/0x10 drivers/tty/n_gsm.c:3124 [n_gsm]\n __pfx_sched_clock_cpu+0x10/0x10 kernel/sched/clock.c:389\n update_load_avg+0x1c1/0x27b0 kernel/sched/fair.c:4500\n __pfx_min_vruntime_cb_rotate+0x10/0x10 kernel/sched/fair.c:846\n __rb_insert_augmented+0x492/0xbf0 lib/rbtree.c:161\n gsmld_ioctl+0x395/0x1450 drivers/tty/n_gsm.c:3408 [n_gsm]\n _raw_spin_lock_irqsave+0x92/0xf0 arch/x86/include/asm/atomic.h:107\n __pfx_gsmld_ioctl+0x10/0x10 drivers/tty/n_gsm.c:3822 [n_gsm]\n ktime_get+0x5e/0x140 kernel/time/timekeeping.c:195\n ldsem_down_read+0x94/0x4e0 arch/x86/include/asm/atomic64_64.h:79\n __pfx_ldsem_down_read+0x10/0x10 drivers/tty/tty_ldsem.c:338\n __pfx_do_vfs_ioctl+0x10/0x10 fs/ioctl.c:805\n tty_ioctl+0x643/0x1100 drivers/tty/tty_io.c:2818\n\nAllocated by task 65:\n gsm_data_alloc.constprop.0+0x27/0x190 drivers/tty/n_gsm.c:926 [n_gsm]\n gsm_send+0x2c/0x580 drivers/tty/n_gsm.c:819 [n_gsm]\n gsm1_receive+0x547/0xad0 drivers/tty/n_gsm.c:3038 [n_gsm]\n gsmld_receive_buf+0x176/0x280 drivers/tty/n_gsm.c:3609 [n_gsm]\n tty_ldisc_receive_buf+0x101/0x1e0 drivers/tty/tty_buffer.c:391\n tty_port_default_receive_buf+0x61/0xa0 drivers/tty/tty_port.c:39\n flush_to_ldisc+0x1b0/0x750 drivers/tty/tty_buffer.c:445\n process_scheduled_works+0x2b0/0x10d0 kernel/workqueue.c:3229\n worker_thread+0x3dc/0x950 kernel/workqueue.c:3391\n kthread+0x2a3/0x370 kernel/kthread.c:389\n ret_from_fork+0x2d/0x70 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:257\n\nFreed by task 3367:\n kfree+0x126/0x420 mm/slub.c:4580\n gsm_cleanup_mux+0x36c/0x7b0 drivers/tty/n_gsm.c:3160 [n_gsm]\n gsmld_ioctl+0x395/0x1450 drivers/tty/n_gsm.c:3408 [n_gsm]\n tty_ioctl+0x643/0x1100 drivers/tty/tty_io.c:2818\n\n[Analysis]\ngsm_msg on the tx_ctrl_list or tx_data_list of gsm_mux\ncan be freed by multi threads through ioctl,which leads\nto the occurrence of uaf. Protect it by gsm tx lock."
}
],
"metrics": [
{
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"baseSeverity": "HIGH",
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"scenarios": [
{
"lang": "en",
"value": "AV:L - The vulnerability is triggered entirely through local syscalls on a tty file descriptor \u2014 `ioctl(TIOCSETD, N_GSM0710)` followed by concurrent `ioctl(GSMIOC_SETCONF)` on a pty the attacker owns. No network or physical access is involved.\nAC:L - The attacker controls both sides of the race \u2014 two threads issuing `GSMIOC_SETCONF` on the same fd, which `tty_ldisc_ref_wait()`\u0027s read semaphore explicitly permits to run concurrently \u2014 and additionally controls list population by writing to the pty peer to queue `gsm_msg` nodes on demand. No condition depends on attacker-uninfluenceable state.\nPR:L - For mainline v6.0\u2013v6.5 and the never-fixed 5.18.18/5.19.2 stable branches covered by this CVE, `gsmld_open()` has no capability check at all, so any unprivileged local user with a pty reaches the bug; even on kernels carrying the later `capable(CAP_NET_ADMIN)` gate, that is a scoped, non-root-equivalent capability routinely granted to network daemons and containers (`--cap-add=NET_ADMIN`).\nUI:N - The attacker performs every step itself \u2014 allocating the pty, attaching the line discipline, feeding data, and racing the two ioctls. No victim action or cooperating process is required.\nS:U - The corruption and its consequences are confined to the kernel of the running system, a standard local privilege-escalation boundary. No hypervisor, IOMMU, or other security-authority boundary is crossed.\nC:H - The unlocked traversal reads `list.next` from a freed, attacker-reclaimable slab object, and the resulting arbitrary-free primitive converts into a use-after-free on a chosen kernel object, enabling arbitrary kernel memory disclosure.\nI:H - Concurrent `kfree()` of the same nodes double-frees them and corrupts the SLUB freelist, while a sprayed `next` pointer yields `kfree()` of an attacker-chosen address \u2014 an arbitrary-free primitive that is a well-established path to arbitrary write and control-flow hijack.\nA:H - The double-free and use-after-free reliably corrupt slab metadata, producing kernel oops or panic even in unweaponized form, as demonstrated by the KASAN slab-use-after-free report in the fix commit."
}
]
}
],
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"title": "tty: n_gsm: Fix use-after-free in gsm_cleanup_mux",
"x_generator": {
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"datePublished": "2024-10-29T00:50:15.219Z",
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"dateUpdated": "2026-08-05T11:41:23.613Z",
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CVE-2024-50085 (GCVE-0-2024-50085)
Vulnerability from cvelistv5 – Published: 2024-10-29 00:50 – Updated: 2026-08-05 11:41
VLAI
EPSS
VEX
Title
mptcp: pm: fix UaF read in mptcp_pm_nl_rm_addr_or_subflow
Summary
In the Linux kernel, the following vulnerability has been resolved:
mptcp: pm: fix UaF read in mptcp_pm_nl_rm_addr_or_subflow
Syzkaller reported this splat:
==================================================================
BUG: KASAN: slab-use-after-free in mptcp_pm_nl_rm_addr_or_subflow+0xb44/0xcc0 net/mptcp/pm_netlink.c:881
Read of size 4 at addr ffff8880569ac858 by task syz.1.2799/14662
CPU: 0 UID: 0 PID: 14662 Comm: syz.1.2799 Not tainted 6.12.0-rc2-syzkaller-00307-g36c254515dc6 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:377 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:488
kasan_report+0xd9/0x110 mm/kasan/report.c:601
mptcp_pm_nl_rm_addr_or_subflow+0xb44/0xcc0 net/mptcp/pm_netlink.c:881
mptcp_pm_nl_rm_subflow_received net/mptcp/pm_netlink.c:914 [inline]
mptcp_nl_remove_id_zero_address+0x305/0x4a0 net/mptcp/pm_netlink.c:1572
mptcp_pm_nl_del_addr_doit+0x5c9/0x770 net/mptcp/pm_netlink.c:1603
genl_family_rcv_msg_doit+0x202/0x2f0 net/netlink/genetlink.c:1115
genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
genl_rcv_msg+0x565/0x800 net/netlink/genetlink.c:1210
netlink_rcv_skb+0x165/0x410 net/netlink/af_netlink.c:2551
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1357
netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901
sock_sendmsg_nosec net/socket.c:729 [inline]
__sock_sendmsg net/socket.c:744 [inline]
____sys_sendmsg+0x9ae/0xb40 net/socket.c:2607
___sys_sendmsg+0x135/0x1e0 net/socket.c:2661
__sys_sendmsg+0x117/0x1f0 net/socket.c:2690
do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
__do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386
do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411
entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf7fe4579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f574556c EFLAGS: 00000296 ORIG_RAX: 0000000000000172
RAX: ffffffffffffffda RBX: 000000000000000b RCX: 0000000020000140
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
</TASK>
Allocated by task 5387:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394
kmalloc_noprof include/linux/slab.h:878 [inline]
kzalloc_noprof include/linux/slab.h:1014 [inline]
subflow_create_ctx+0x87/0x2a0 net/mptcp/subflow.c:1803
subflow_ulp_init+0xc3/0x4d0 net/mptcp/subflow.c:1956
__tcp_set_ulp net/ipv4/tcp_ulp.c:146 [inline]
tcp_set_ulp+0x326/0x7f0 net/ipv4/tcp_ulp.c:167
mptcp_subflow_create_socket+0x4ae/0x10a0 net/mptcp/subflow.c:1764
__mptcp_subflow_connect+0x3cc/0x1490 net/mptcp/subflow.c:1592
mptcp_pm_create_subflow_or_signal_addr+0xbda/0x23a0 net/mptcp/pm_netlink.c:642
mptcp_pm_nl_fully_established net/mptcp/pm_netlink.c:650 [inline]
mptcp_pm_nl_work+0x3a1/0x4f0 net/mptcp/pm_netlink.c:943
mptcp_worker+0x15a/0x1240 net/mptcp/protocol.c:2777
process_one_work+0x958/0x1b30 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/ke
---truncated---
Severity
9.8 (Critical)
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
35b31f5549ede4070566b949781e83495906b43d , < 35301636439138b821f1f6169bd00d348ebd388a
(git)
Affected: 85b866e4c4e63a1d7afb58f1e24273caad03d0b7 , < da3343bc0839b180fd9af9c27fa456d8231409f9 (git) Affected: d20bf2c96d7ffd171299b32f562f70e5bf5dc608 , < 7b2e478abab0b3a33515433a6af563aebba773c1 (git) Affected: 1c1f721375989579e46741f59523e39ec9b2a9bd , < a8c36ea4ef9a350816f6556c5c5b63810f84b538 (git) Affected: 1c1f721375989579e46741f59523e39ec9b2a9bd , < 7decd1f5904a489d3ccdcf131972f94645681689 (git) Affected: 2060f1efab370b496c4903b840844ecaff324c3c (git) Affected: 5.15.167 , < 5.15.169 (semver) Affected: 6.1.107 , < 6.1.114 (semver) Affected: 6.6.48 , < 6.6.58 (semver) Affected: 6.10.7 , < 6.11 (semver) |
|
| Linux | Linux |
Affected:
6.11
Unaffected: 0 , < 6.11 (semver) Unaffected: 5.15.169 , ≤ 5.15.* (semver) Unaffected: 6.1.114 , ≤ 6.1.* (semver) Unaffected: 6.6.58 , ≤ 6.6.* (semver) Unaffected: 6.11.5 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix) |
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2024-50085",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-12-11T14:26:02.743200Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-12-11T14:58:34.434Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2025-11-03T22:25:17.336Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/mptcp/pm_netlink.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "35301636439138b821f1f6169bd00d348ebd388a",
"status": "affected",
"version": "35b31f5549ede4070566b949781e83495906b43d",
"versionType": "git"
},
{
"lessThan": "da3343bc0839b180fd9af9c27fa456d8231409f9",
"status": "affected",
"version": "85b866e4c4e63a1d7afb58f1e24273caad03d0b7",
"versionType": "git"
},
{
"lessThan": "7b2e478abab0b3a33515433a6af563aebba773c1",
"status": "affected",
"version": "d20bf2c96d7ffd171299b32f562f70e5bf5dc608",
"versionType": "git"
},
{
"lessThan": "a8c36ea4ef9a350816f6556c5c5b63810f84b538",
"status": "affected",
"version": "1c1f721375989579e46741f59523e39ec9b2a9bd",
"versionType": "git"
},
{
"lessThan": "7decd1f5904a489d3ccdcf131972f94645681689",
"status": "affected",
"version": "1c1f721375989579e46741f59523e39ec9b2a9bd",
"versionType": "git"
},
{
"status": "affected",
"version": "2060f1efab370b496c4903b840844ecaff324c3c",
"versionType": "git"
},
{
"lessThan": "5.15.169",
"status": "affected",
"version": "5.15.167",
"versionType": "semver"
},
{
"lessThan": "6.1.114",
"status": "affected",
"version": "6.1.107",
"versionType": "semver"
},
{
"lessThan": "6.6.58",
"status": "affected",
"version": "6.6.48",
"versionType": "semver"
},
{
"lessThan": "6.11",
"status": "affected",
"version": "6.10.7",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/mptcp/pm_netlink.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.11"
},
{
"lessThan": "6.11",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.169",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.114",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.58",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.11.*",
"status": "unaffected",
"version": "6.11.5",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.12",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.169",
"versionStartIncluding": "5.15.167",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.114",
"versionStartIncluding": "6.1.107",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.58",
"versionStartIncluding": "6.6.48",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.11.5",
"versionStartIncluding": "6.11",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12",
"versionStartIncluding": "6.11",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.10.7",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: pm: fix UaF read in mptcp_pm_nl_rm_addr_or_subflow\n\nSyzkaller reported this splat:\n\n ==================================================================\n BUG: KASAN: slab-use-after-free in mptcp_pm_nl_rm_addr_or_subflow+0xb44/0xcc0 net/mptcp/pm_netlink.c:881\n Read of size 4 at addr ffff8880569ac858 by task syz.1.2799/14662\n\n CPU: 0 UID: 0 PID: 14662 Comm: syz.1.2799 Not tainted 6.12.0-rc2-syzkaller-00307-g36c254515dc6 #0\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014\n Call Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:94 [inline]\n dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120\n print_address_description mm/kasan/report.c:377 [inline]\n print_report+0xc3/0x620 mm/kasan/report.c:488\n kasan_report+0xd9/0x110 mm/kasan/report.c:601\n mptcp_pm_nl_rm_addr_or_subflow+0xb44/0xcc0 net/mptcp/pm_netlink.c:881\n mptcp_pm_nl_rm_subflow_received net/mptcp/pm_netlink.c:914 [inline]\n mptcp_nl_remove_id_zero_address+0x305/0x4a0 net/mptcp/pm_netlink.c:1572\n mptcp_pm_nl_del_addr_doit+0x5c9/0x770 net/mptcp/pm_netlink.c:1603\n genl_family_rcv_msg_doit+0x202/0x2f0 net/netlink/genetlink.c:1115\n genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]\n genl_rcv_msg+0x565/0x800 net/netlink/genetlink.c:1210\n netlink_rcv_skb+0x165/0x410 net/netlink/af_netlink.c:2551\n genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219\n netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]\n netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1357\n netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901\n sock_sendmsg_nosec net/socket.c:729 [inline]\n __sock_sendmsg net/socket.c:744 [inline]\n ____sys_sendmsg+0x9ae/0xb40 net/socket.c:2607\n ___sys_sendmsg+0x135/0x1e0 net/socket.c:2661\n __sys_sendmsg+0x117/0x1f0 net/socket.c:2690\n do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]\n __do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386\n do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411\n entry_SYSENTER_compat_after_hwframe+0x84/0x8e\n RIP: 0023:0xf7fe4579\n Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 \u003c5d\u003e 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00\n RSP: 002b:00000000f574556c EFLAGS: 00000296 ORIG_RAX: 0000000000000172\n RAX: ffffffffffffffda RBX: 000000000000000b RCX: 0000000020000140\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\n RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000\n R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000\n \u003c/TASK\u003e\n\n Allocated by task 5387:\n kasan_save_stack+0x33/0x60 mm/kasan/common.c:47\n kasan_save_track+0x14/0x30 mm/kasan/common.c:68\n poison_kmalloc_redzone mm/kasan/common.c:377 [inline]\n __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394\n kmalloc_noprof include/linux/slab.h:878 [inline]\n kzalloc_noprof include/linux/slab.h:1014 [inline]\n subflow_create_ctx+0x87/0x2a0 net/mptcp/subflow.c:1803\n subflow_ulp_init+0xc3/0x4d0 net/mptcp/subflow.c:1956\n __tcp_set_ulp net/ipv4/tcp_ulp.c:146 [inline]\n tcp_set_ulp+0x326/0x7f0 net/ipv4/tcp_ulp.c:167\n mptcp_subflow_create_socket+0x4ae/0x10a0 net/mptcp/subflow.c:1764\n __mptcp_subflow_connect+0x3cc/0x1490 net/mptcp/subflow.c:1592\n mptcp_pm_create_subflow_or_signal_addr+0xbda/0x23a0 net/mptcp/pm_netlink.c:642\n mptcp_pm_nl_fully_established net/mptcp/pm_netlink.c:650 [inline]\n mptcp_pm_nl_work+0x3a1/0x4f0 net/mptcp/pm_netlink.c:943\n mptcp_worker+0x15a/0x1240 net/mptcp/protocol.c:2777\n process_one_work+0x958/0x1b30 kernel/workqueue.c:3229\n process_scheduled_works kernel/workqueue.c:3310 [inline]\n worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391\n kthread+0x2c1/0x3a0 kernel/kthread.c:389\n ret_from_fork+0x45/0x80 arch/x86/ke\n---truncated---"
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:N - The identical buggy line is reached with no local access at all when a remote MPTCP peer sends an RM_ADDR TCP option: `mptcp_incoming_options()` \u2192 `mptcp_pm_rm_addr_received()` \u2192 `mptcp_pm_nl_work()` \u2192 `mptcp_pm_nl_rm_addr_received()` \u2192 `mptcp_pm_nl_rm_addr_or_subflow()`. MPTCP is enabled by default (`pernet-\u003emptcp_enabled = 1`) and used by internet-facing services, so the remote peer of any `IPPROTO_MPTCP` connection can drive the close-then-use sequence.\nAC:L - The attacker controls both halves: it chooses which subflows exist (MP_JOIN) and when they are torn down (RM_ADDR ids, or repeated DEL_ADDR netlink calls), and it can drive the kfree_rcu drain by inducing memory pressure \u2014 the exact `kfree_rcu_shrink_scan()` path in the syzbot report. The sequence can be retried without limit and requires no memory layout the attacker cannot influence.\nPR:N - On the RM_ADDR path a remote peer needs no credentials whatsoever \u2014 subflow teardown is ordinary protocol traffic processed before any application-layer authentication. Even the local netlink path only carries `GENL_UNS_ADMIN_PERM`, i.e. CAP_NET_ADMIN in the owning user namespace, obtainable by any unprivileged user via `unshare -Urn`.\nUI:N - The path manager processes RM_ADDR and DEL_ADDR autonomously in the mptcp worker and netlink doit handler; no victim action such as opening a file, mounting a filesystem, or clicking anything is involved.\nS:U - The freed object and the corrupted state are both kernel-heap/MPTCP path-manager structures within the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - This is a KASAN-confirmed slab-use-after-free read of freed kmalloc-512 memory, and per kernel UAF scoring the attacker gains control over the freed object\u0027s contents through heap spraying of that widely-used cache. The stale contents then steer kernel control flow, and the resulting `pm.accept_addr` behaviour change is remotely observable, turning freed heap state into an attacker-visible oracle.\nI:H - Once the freed `mptcp_subflow_context` is reallocated with attacker-shaped data, the attacker chooses the value of `removed`, which directly drives `--msk-\u003epm.add_addr_accepted` and `WRITE_ONCE(msk-\u003epm.accept_addr, true)` \u2014 corrupting path-manager accounting and bypassing the administrator\u0027s configured `add_addr_accept_max`, so the host is forced to open additional subflows to attacker-announced addresses. Use-after-free access to a reallocated slab object is scored as high integrity impact.\nA:H - Use-after-free access is a crash vector: on KASAN or hardened builds it panics outright, and forcing `removed` true when `msk-\u003epm.add_addr_accepted == 0` trips `WARN_ON_ONCE()`, which is fatal on the many production and Android kernels running `panic_on_warn`. The sequence is repeatable at will by the remote peer."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T11:41:30.621Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/35301636439138b821f1f6169bd00d348ebd388a"
},
{
"url": "https://git.kernel.org/stable/c/da3343bc0839b180fd9af9c27fa456d8231409f9"
},
{
"url": "https://git.kernel.org/stable/c/7b2e478abab0b3a33515433a6af563aebba773c1"
},
{
"url": "https://git.kernel.org/stable/c/a8c36ea4ef9a350816f6556c5c5b63810f84b538"
},
{
"url": "https://git.kernel.org/stable/c/7decd1f5904a489d3ccdcf131972f94645681689"
}
],
"title": "mptcp: pm: fix UaF read in mptcp_pm_nl_rm_addr_or_subflow",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-50085",
"datePublished": "2024-10-29T00:50:28.269Z",
"dateReserved": "2024-10-21T19:36:19.942Z",
"dateUpdated": "2026-08-05T11:41:30.621Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2024-50115 (GCVE-0-2024-50115)
Vulnerability from cvelistv5 – Published: 2024-11-05 17:10 – Updated: 2026-08-05 11:41
VLAI
EPSS
VEX
Title
KVM: nSVM: Ignore nCR3[4:0] when loading PDPTEs from memory
Summary
In the Linux kernel, the following vulnerability has been resolved:
KVM: nSVM: Ignore nCR3[4:0] when loading PDPTEs from memory
Ignore nCR3[4:0] when loading PDPTEs from memory for nested SVM, as bits
4:0 of CR3 are ignored when PAE paging is used, and thus VMRUN doesn't
enforce 32-byte alignment of nCR3.
In the absolute worst case scenario, failure to ignore bits 4:0 can result
in an out-of-bounds read, e.g. if the target page is at the end of a
memslot, and the VMM isn't using guard pages.
Per the APM:
The CR3 register points to the base address of the page-directory-pointer
table. The page-directory-pointer table is aligned on a 32-byte boundary,
with the low 5 address bits 4:0 assumed to be 0.
And the SDM's much more explicit:
4:0 Ignored
Note, KVM gets this right when loading PDPTRs, it's only the nSVM flow
that is broken.
Severity
8.4 (High)
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
e4e517b4be019787ada4cbbce2f04570c21b0cbd , < 76ce386feb14ec9a460784fcd495d8432acce7a5
(git)
Affected: e4e517b4be019787ada4cbbce2f04570c21b0cbd , < 58cb697d80e669c56197f703e188867c8c54c494 (git) Affected: e4e517b4be019787ada4cbbce2f04570c21b0cbd , < 6876793907cbe19d42e9edc8c3315a21e06c32ae (git) Affected: e4e517b4be019787ada4cbbce2f04570c21b0cbd , < 2c4adc9b192a0815fe58a62bc0709449416cc884 (git) Affected: e4e517b4be019787ada4cbbce2f04570c21b0cbd , < 426682afec71ea3f889b972d038238807b9443e4 (git) Affected: e4e517b4be019787ada4cbbce2f04570c21b0cbd , < f559b2e9c5c5308850544ab59396b7d53cfc67bd (git) |
|
| Linux | Linux |
Affected:
3.2
Unaffected: 0 , < 3.2 (semver) Unaffected: 5.10.229 , ≤ 5.10.* (semver) Unaffected: 5.15.170 , ≤ 5.15.* (semver) Unaffected: 6.1.115 , ≤ 6.1.* (semver) Unaffected: 6.6.59 , ≤ 6.6.* (semver) Unaffected: 6.11.6 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix) |
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CVE-2024-50185 (GCVE-0-2024-50185)
Vulnerability from cvelistv5 – Published: 2024-11-08 05:38 – Updated: 2026-08-05 11:42
VLAI
EPSS
VEX
Title
mptcp: handle consistently DSS corruption
Summary
In the Linux kernel, the following vulnerability has been resolved:
mptcp: handle consistently DSS corruption
Bugged peer implementation can send corrupted DSS options, consistently
hitting a few warning in the data path. Use DEBUG_NET assertions, to
avoid the splat on some builds and handle consistently the error, dumping
related MIBs and performing fallback and/or reset according to the
subflow type.
Severity
8.2 (High)
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
6771bfd9ee2460c13e38c0cd46a3afb5404ae716 , < fde99e972b8f88cebe619241d7aa43d288ef666a
(git)
Affected: 6771bfd9ee2460c13e38c0cd46a3afb5404ae716 , < 12c1676d598e3b8dd92a033b623b792cc2ea1ec5 (git) Affected: 6771bfd9ee2460c13e38c0cd46a3afb5404ae716 , < 35668f8ec84f6c944676e48ecc6bbc5fc8e6fe25 (git) Affected: 6771bfd9ee2460c13e38c0cd46a3afb5404ae716 , < b8be15d1ae7ea4eedd547c3b3141f592fbddcd30 (git) Affected: 6771bfd9ee2460c13e38c0cd46a3afb5404ae716 , < 8bfd391bde685df7289b928ce8876a3583be4bfb (git) Affected: 6771bfd9ee2460c13e38c0cd46a3afb5404ae716 , < e32d262c89e2b22cb0640223f953b548617ed8a6 (git) |
|
| Linux | Linux |
Affected:
5.7
Unaffected: 0 , < 5.7 (semver) Unaffected: 5.10.228 , ≤ 5.10.* (semver) Unaffected: 5.15.169 , ≤ 5.15.* (semver) Unaffected: 6.1.113 , ≤ 6.1.* (semver) Unaffected: 6.6.57 , ≤ 6.6.* (semver) Unaffected: 6.11.4 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix) |
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CVE-2024-50199 (GCVE-0-2024-50199)
Vulnerability from cvelistv5 – Published: 2024-11-08 05:54 – Updated: 2026-05-11 20:47
VLAI
EPSS
VEX
Title
mm/swapfile: skip HugeTLB pages for unuse_vma
Summary
In the Linux kernel, the following vulnerability has been resolved:
mm/swapfile: skip HugeTLB pages for unuse_vma
I got a bad pud error and lost a 1GB HugeTLB when calling swapoff. The
problem can be reproduced by the following steps:
1. Allocate an anonymous 1GB HugeTLB and some other anonymous memory.
2. Swapout the above anonymous memory.
3. run swapoff and we will get a bad pud error in kernel message:
mm/pgtable-generic.c:42: bad pud 00000000743d215d(84000001400000e7)
We can tell that pud_clear_bad is called by pud_none_or_clear_bad in
unuse_pud_range() by ftrace. And therefore the HugeTLB pages will never
be freed because we lost it from page table. We can skip HugeTLB pages
for unuse_vma to fix it.
Severity
No CVSS data available.
Assigner
References
9 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
0fe6e20b9c4c53b3e97096ee73a0857f60aad43f , < ba7f982cdb37ff5a7739dec85d7325ea66fc1496
(git)
Affected: 0fe6e20b9c4c53b3e97096ee73a0857f60aad43f , < 417d5838ca73c6331ae2fe692fab6c25c00d9a0b (git) Affected: 0fe6e20b9c4c53b3e97096ee73a0857f60aad43f , < e41710f5a61aca9d6baaa8f53908a927dd9e7aa7 (git) Affected: 0fe6e20b9c4c53b3e97096ee73a0857f60aad43f , < 6ec0fe3756f941f42f8c57156b8bdf2877b2ebaf (git) Affected: 0fe6e20b9c4c53b3e97096ee73a0857f60aad43f , < bed2b9037806c62166a0ef9a559a1e7e3e1275b8 (git) Affected: 0fe6e20b9c4c53b3e97096ee73a0857f60aad43f , < eb66a833cdd2f7302ee05d05e0fa12a2ca32eb87 (git) Affected: 0fe6e20b9c4c53b3e97096ee73a0857f60aad43f , < 7528c4fb1237512ee18049f852f014eba80bbe8d (git) |
|
| Linux | Linux |
Affected:
2.6.36
Unaffected: 0 , < 2.6.36 (semver) Unaffected: 5.4.285 , ≤ 5.4.* (semver) Unaffected: 5.10.228 , ≤ 5.10.* (semver) Unaffected: 5.15.169 , ≤ 5.15.* (semver) Unaffected: 6.1.114 , ≤ 6.1.* (semver) Unaffected: 6.6.58 , ≤ 6.6.* (semver) Unaffected: 6.11.5 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix) |
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CVE-2024-53104 (GCVE-0-2024-53104)
Vulnerability from cvelistv5 – Published: 2024-12-02 07:29 – Updated: 2026-05-11 20:50
VLAI
EPSS
VEX
Title
media: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_format
Summary
In the Linux kernel, the following vulnerability has been resolved:
media: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_format
This can lead to out of bounds writes since frames of this type were not
taken into account when calculating the size of the frames buffer in
uvc_parse_streaming.
Severity
7.8 (High)
SSVC
Exploitation: active
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
12 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
c0efd232929c2cd87238de2cccdaf4e845be5b0c , < 95edf13a48e75dc2cc5b0bc57bf90d6948a22fe8
(git)
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|
| Linux | Linux |
Affected:
2.6.26
Unaffected: 0 , < 2.6.26 (semver) Unaffected: 4.19.324 , ≤ 4.19.* (semver) Unaffected: 5.4.286 , ≤ 5.4.* (semver) Unaffected: 5.10.230 , ≤ 5.10.* (semver) Unaffected: 5.15.172 , ≤ 5.15.* (semver) Unaffected: 6.1.117 , ≤ 6.1.* (semver) Unaffected: 6.6.61 , ≤ 6.6.* (semver) Unaffected: 6.11.8 , ≤ 6.11.* (semver) Unaffected: 6.12.1 , ≤ 6.12.* (semver) Unaffected: 6.13 , ≤ * (original_commit_for_fix) |
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"version": "c0efd232929c2cd87238de2cccdaf4e845be5b0c",
"versionType": "git"
},
{
"lessThan": "ecf2b43018da9579842c774b7f35dbe11b5c38dd",
"status": "affected",
"version": "c0efd232929c2cd87238de2cccdaf4e845be5b0c",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/media/usb/uvc/uvc_driver.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.26"
},
{
"lessThan": "2.6.26",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.324",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.286",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.230",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.172",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.117",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.61",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.11.*",
"status": "unaffected",
"version": "6.11.8",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.13",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.19.324",
"versionStartIncluding": "2.6.26",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.286",
"versionStartIncluding": "2.6.26",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.230",
"versionStartIncluding": "2.6.26",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.172",
"versionStartIncluding": "2.6.26",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.117",
"versionStartIncluding": "2.6.26",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.61",
"versionStartIncluding": "2.6.26",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.11.8",
"versionStartIncluding": "2.6.26",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.1",
"versionStartIncluding": "2.6.26",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.13",
"versionStartIncluding": "2.6.26",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_format\n\nThis can lead to out of bounds writes since frames of this type were not\ntaken into account when calculating the size of the frames buffer in\nuvc_parse_streaming."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T20:50:54.836Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/95edf13a48e75dc2cc5b0bc57bf90d6948a22fe8"
},
{
"url": "https://git.kernel.org/stable/c/684022f81f128338fe3587ec967459669a1204ae"
},
{
"url": "https://git.kernel.org/stable/c/faff5bbb2762c44ec7426037b3000e77a11d6773"
},
{
"url": "https://git.kernel.org/stable/c/467d84dc78c9abf6b217ada22b3fdba336262e29"
},
{
"url": "https://git.kernel.org/stable/c/beced2cb09b58c1243733f374c560a55382003d6"
},
{
"url": "https://git.kernel.org/stable/c/575a562f7a3ec2d54ff77ab6810e3fbceef2a91d"
},
{
"url": "https://git.kernel.org/stable/c/622ad10aae5f5e03b7927ea95f7f32812f692bb5"
},
{
"url": "https://git.kernel.org/stable/c/1ee9d9122801eb688783acd07791f2906b87cb4f"
},
{
"url": "https://git.kernel.org/stable/c/ecf2b43018da9579842c774b7f35dbe11b5c38dd"
}
],
"title": "media: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_format",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-53104",
"datePublished": "2024-12-02T07:29:27.261Z",
"dateReserved": "2024-11-19T17:17:24.985Z",
"dateUpdated": "2026-05-11T20:50:54.836Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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