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CERTFR-2024-AVI-0719
Vulnerability from certfr_avis - Published: - Updated:
De multiples vulnérabilités ont été découvertes dans le noyau Linux de Debian. Elles permettent à un attaquant de provoquer une élévation de privilèges, une atteinte à la confidentialité des données et un déni de service.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
References
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Debian bullseye versions ant\u00e9rieures \u00e0 5.10.223-1",
"product": {
"name": "N/A",
"vendor": {
"name": "Debian",
"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-2024-41022",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41022"
},
{
"name": "CVE-2024-41009",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41009"
},
{
"name": "CVE-2022-48666",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-48666"
},
{
"name": "CVE-2024-42137",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42137"
},
{
"name": "CVE-2024-41070",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41070"
},
{
"name": "CVE-2024-41034",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41034"
},
{
"name": "CVE-2024-42236",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42236"
},
{
"name": "CVE-2024-42157",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42157"
},
{
"name": "CVE-2024-42153",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42153"
},
{
"name": "CVE-2024-42154",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42154"
},
{
"name": "CVE-2024-36484",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-36484"
},
{
"name": "CVE-2024-42229",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42229"
},
{
"name": "CVE-2024-41007",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41007"
},
{
"name": "CVE-2024-42247",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42247"
},
{
"name": "CVE-2024-41078",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41078"
},
{
"name": "CVE-2024-41081",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41081"
},
{
"name": "CVE-2024-41072",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41072"
},
{
"name": "CVE-2024-36938",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-36938"
},
{
"name": "CVE-2024-42124",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42124"
},
{
"name": "CVE-2024-41041",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41041"
},
{
"name": "CVE-2024-42131",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42131"
},
{
"name": "CVE-2024-40947",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-40947"
},
{
"name": "CVE-2024-42232",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42232"
},
{
"name": "CVE-2024-42223",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42223"
},
{
"name": "CVE-2024-42121",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42121"
},
{
"name": "CVE-2024-41063",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41063"
},
{
"name": "CVE-2024-41017",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41017"
},
{
"name": "CVE-2024-42244",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42244"
},
{
"name": "CVE-2024-41012",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41012"
},
{
"name": "CVE-2024-42119",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42119"
},
{
"name": "CVE-2024-39487",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-39487"
},
{
"name": "CVE-2024-36901",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-36901"
},
{
"name": "CVE-2024-41090",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41090"
},
{
"name": "CVE-2024-41077",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41077"
},
{
"name": "CVE-2024-42106",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42106"
},
{
"name": "CVE-2024-42104",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42104"
},
{
"name": "CVE-2024-42120",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42120"
},
{
"name": "CVE-2024-41068",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41068"
},
{
"name": "CVE-2024-42101",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42101"
},
{
"name": "CVE-2024-41059",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41059"
},
{
"name": "CVE-2024-41040",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41040"
},
{
"name": "CVE-2024-42115",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42115"
},
{
"name": "CVE-2024-41055",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41055"
},
{
"name": "CVE-2024-41015",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41015"
},
{
"name": "CVE-2024-42102",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42102"
},
{
"name": "CVE-2024-42224",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42224"
},
{
"name": "CVE-2024-42161",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42161"
},
{
"name": "CVE-2024-41035",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41035"
},
{
"name": "CVE-2024-41049",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41049"
},
{
"name": "CVE-2024-42143",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42143"
},
{
"name": "CVE-2024-41065",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41065"
},
{
"name": "CVE-2024-42127",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42127"
},
{
"name": "CVE-2024-41091",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41091"
},
{
"name": "CVE-2024-42105",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42105"
},
{
"name": "CVE-2024-41044",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41044"
},
{
"name": "CVE-2024-41046",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41046"
},
{
"name": "CVE-2024-42152",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42152"
},
{
"name": "CVE-2024-42148",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42148"
},
{
"name": "CVE-2024-41064",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41064"
},
{
"name": "CVE-2024-41020",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41020"
},
{
"name": "CVE-2024-42145",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42145"
}
],
"links": [],
"reference": "CERTFR-2024-AVI-0719",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2024-08-23T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service"
},
{
"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 le noyau Linux de Debian. Elles permettent \u00e0 un attaquant de provoquer une \u00e9l\u00e9vation de privil\u00e8ges, une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et un d\u00e9ni de service.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux de Debian",
"vendor_advisories": [
{
"published_at": "2024-08-12",
"title": "Bulletin de s\u00e9curit\u00e9 Debian DSA-5747-1",
"url": "https://lists.debian.org/debian-security-announce/2024/msg00159.html"
}
]
}
CVE-2024-41017 (GCVE-0-2024-41017)
Vulnerability from cvelistv5 – Published: 2024-07-29 06:37 – Updated: 2026-08-05 11:34
VLAI
EPSS
VEX
Title
jfs: don't walk off the end of ealist
Summary
In the Linux kernel, the following vulnerability has been resolved:
jfs: don't walk off the end of ealist
Add a check before visiting the members of ea to
make sure each ea stays within the ealist.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
10 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7f91bd0f2941fa36449ce1a15faaa64f840d9746
(git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < fc16776a82e8df97b6c4f9a10ba95aa44cef7ba5 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 6386f1b6a10e5d1ddd03db4ff6dfc55d488852ce (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7e21574195a45fc193555fa40e99fed16565ff7e (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 4e034f7e563ab723b93a59980e4a1bb33198ece8 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 17440dbc66ab98b410514b04987f61deedb86751 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < f4435f476b9bf059cd9e26a69f5b29c768d00375 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < dbde7bc91093fa9c2410e418b236b70fde044b73 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d0fa70aca54c8643248e89061da23752506ec0d4 (git) |
|
| Linux | Linux |
Affected:
2.6.12
Unaffected: 0 , < 2.6.12 (semver) Unaffected: 4.19.319 , ≤ 4.19.* (semver) Unaffected: 5.4.281 , ≤ 5.4.* (semver) Unaffected: 5.10.223 , ≤ 5.10.* (semver) Unaffected: 5.15.164 , ≤ 5.15.* (semver) Unaffected: 6.1.102 , ≤ 6.1.* (semver) Unaffected: 6.6.43 , ≤ 6.6.* (semver) Unaffected: 6.9.12 , ≤ 6.9.* (semver) Unaffected: 6.10.2 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix) |
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"title": "CVE Program Container"
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{
"metrics": [
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"other": {
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"status": "unaffected",
"version": "0",
"versionType": "semver"
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"status": "unaffected",
"version": "4.19.319",
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"version": "5.4.281",
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},
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"status": "unaffected",
"version": "5.10.223",
"versionType": "semver"
},
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"status": "unaffected",
"version": "5.15.164",
"versionType": "semver"
},
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"status": "unaffected",
"version": "6.1.102",
"versionType": "semver"
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"status": "unaffected",
"version": "6.6.43",
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"version": "6.9.12",
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CVE-2024-41020 (GCVE-0-2024-41020)
Vulnerability from cvelistv5 – Published: 2024-07-29 13:34 – Updated: 2026-08-05 11:34
VLAI
EPSS
VEX
Title
filelock: Fix fcntl/close race recovery compat path
Summary
In the Linux kernel, the following vulnerability has been resolved:
filelock: Fix fcntl/close race recovery compat path
When I wrote commit 3cad1bc01041 ("filelock: Remove locks reliably when
fcntl/close race is detected"), I missed that there are two copies of the
code I was patching: The normal version, and the version for 64-bit offsets
on 32-bit kernels.
Thanks to Greg KH for stumbling over this while doing the stable
backport...
Apply exactly the same fix to the compat path for 32-bit kernels.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
10 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
c293621bbf678a3d85e3ed721c3921c8a670610d , < a561145f3ae973ebf3e0aee41624e92a6c5cb38d
(git)
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|
| Linux | Linux |
Affected:
2.6.13
Unaffected: 0 , < 2.6.13 (semver) Unaffected: 4.19.319 , ≤ 4.19.* (semver) Unaffected: 5.4.281 , ≤ 5.4.* (semver) Unaffected: 5.10.223 , ≤ 5.10.* (semver) Unaffected: 5.15.164 , ≤ 5.15.* (semver) Unaffected: 6.1.102 , ≤ 6.1.* (semver) Unaffected: 6.6.43 , ≤ 6.6.* (semver) Unaffected: 6.9.12 , ≤ 6.9.* (semver) Unaffected: 6.10.2 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix) |
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CVE-2024-41022 (GCVE-0-2024-41022)
Vulnerability from cvelistv5 – Published: 2024-07-29 13:34 – Updated: 2026-08-05 11:34
VLAI
EPSS
VEX
Title
drm/amdgpu: Fix signedness bug in sdma_v4_0_process_trap_irq()
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: Fix signedness bug in sdma_v4_0_process_trap_irq()
The "instance" variable needs to be signed for the error handling to work.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
9 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
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|
| Linux | Linux |
Affected:
6.10
Unaffected: 0 , < 6.10 (semver) Unaffected: 5.4.281 , ≤ 5.4.* (semver) Unaffected: 5.10.223 , ≤ 5.10.* (semver) Unaffected: 5.15.164 , ≤ 5.15.* (semver) Unaffected: 6.1.102 , ≤ 6.1.* (semver) Unaffected: 6.6.43 , ≤ 6.6.* (semver) Unaffected: 6.9.12 , ≤ 6.9.* (semver) Unaffected: 6.10.2 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix) |
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CVE-2024-41034 (GCVE-0-2024-41034)
Vulnerability from cvelistv5 – Published: 2024-07-29 14:31 – Updated: 2026-08-05 11:34
VLAI
EPSS
VEX
Title
nilfs2: fix kernel bug on rename operation of broken directory
Summary
In the Linux kernel, the following vulnerability has been resolved:
nilfs2: fix kernel bug on rename operation of broken directory
Syzbot reported that in rename directory operation on broken directory on
nilfs2, __block_write_begin_int() called to prepare block write may fail
BUG_ON check for access exceeding the folio/page size.
This is because nilfs_dotdot(), which gets parent directory reference
entry ("..") of the directory to be moved or renamed, does not check
consistency enough, and may return location exceeding folio/page size for
broken directories.
Fix this issue by checking required directory entries ("." and "..") in
the first chunk of the directory in nilfs_dotdot().
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
9 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
2ba466d74ed74f073257f86e61519cb8f8f46184 , < ff9767ba2cb949701e45e6e4287f8af82986b703
(git)
Affected: 2ba466d74ed74f073257f86e61519cb8f8f46184 , < 24c1c8566a9b6be51f5347be2ea76e25fc82b11e (git) Affected: 2ba466d74ed74f073257f86e61519cb8f8f46184 , < a9a466a69b85059b341239766a10efdd3ee68a4b (git) Affected: 2ba466d74ed74f073257f86e61519cb8f8f46184 , < 7000b438dda9d0f41a956fc9bffed92d2eb6be0d (git) Affected: 2ba466d74ed74f073257f86e61519cb8f8f46184 , < 1a8879c0771a68d70ee2e5e66eea34207e8c6231 (git) Affected: 2ba466d74ed74f073257f86e61519cb8f8f46184 , < 60f61514374e4a0c3b65b08c6024dd7e26150bfd (git) Affected: 2ba466d74ed74f073257f86e61519cb8f8f46184 , < 298cd810d7fb687c90a14d8f9fd1b8719a7cb8a5 (git) Affected: 2ba466d74ed74f073257f86e61519cb8f8f46184 , < a9e1ddc09ca55746079cc479aa3eb6411f0d99d4 (git) |
|
| Linux | Linux |
Affected:
2.6.30
Unaffected: 0 , < 2.6.30 (semver) Unaffected: 4.19.318 , ≤ 4.19.* (semver) Unaffected: 5.4.280 , ≤ 5.4.* (semver) Unaffected: 5.10.222 , ≤ 5.10.* (semver) Unaffected: 5.15.163 , ≤ 5.15.* (semver) Unaffected: 6.1.100 , ≤ 6.1.* (semver) Unaffected: 6.6.41 , ≤ 6.6.* (semver) Unaffected: 6.9.10 , ≤ 6.9.* (semver) Unaffected: 6.10 , ≤ * (original_commit_for_fix) |
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CVE-2024-41035 (GCVE-0-2024-41035)
Vulnerability from cvelistv5 – Published: 2024-07-29 14:31 – Updated: 2026-05-23 15:51
VLAI
EPSS
VEX
Title
USB: core: Fix duplicate endpoint bug by clearing reserved bits in the descriptor
Summary
In the Linux kernel, the following vulnerability has been resolved:
USB: core: Fix duplicate endpoint bug by clearing reserved bits in the descriptor
Syzbot has identified a bug in usbcore (see the Closes: tag below)
caused by our assumption that the reserved bits in an endpoint
descriptor's bEndpointAddress field will always be 0. As a result of
the bug, the endpoint_is_duplicate() routine in config.c (and possibly
other routines as well) may believe that two descriptors are for
distinct endpoints, even though they have the same direction and
endpoint number. This can lead to confusion, including the bug
identified by syzbot (two descriptors with matching endpoint numbers
and directions, where one was interrupt and the other was bulk).
To fix the bug, we will clear the reserved bits in bEndpointAddress
when we parse the descriptor. (Note that both the USB-2.0 and USB-3.1
specs say these bits are "Reserved, reset to zero".) This requires us
to make a copy of the descriptor earlier in usb_parse_endpoint() and
use the copy instead of the original when checking for duplicates.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
9 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
0a8fd1346254974c3a852338508e4a4cddbb35f1 , < d8418fd083d1b90a6c007cf8dcf81aeae274727b
(git)
Affected: 0a8fd1346254974c3a852338508e4a4cddbb35f1 , < 60abea505b726b38232a0ef410d2bd1994a77f78 (git) Affected: 0a8fd1346254974c3a852338508e4a4cddbb35f1 , < d09dd21bb5215d583ca9a1cb1464dbc77a7e88cf (git) Affected: 0a8fd1346254974c3a852338508e4a4cddbb35f1 , < 2bd8534a1b83c65702aec3cab164170f8e584188 (git) Affected: 0a8fd1346254974c3a852338508e4a4cddbb35f1 , < 9edcf317620d7c6a8354911b69b874cf89716646 (git) Affected: 0a8fd1346254974c3a852338508e4a4cddbb35f1 , < 647d61aef106dbed9c70447bcddbd4968e67ca64 (git) Affected: 0a8fd1346254974c3a852338508e4a4cddbb35f1 , < 37514a5c1251a8c5c95c323f55050736e7069ac7 (git) Affected: 0a8fd1346254974c3a852338508e4a4cddbb35f1 , < a368ecde8a5055b627749b09c6218ef793043e47 (git) Affected: c3726b442527ab31c7110d0445411f5b5343db01 (git) Affected: 15668b4354b38b41b316571deed2763d631b2977 (git) Affected: 8597a9245181656ae2ef341906e5f40af323fbca (git) Affected: 264024a2676ba7d91fe7b1713b2c32d1b0b508cb (git) Affected: b0de742a1be16b76b534d088682f18cf57f012d2 (git) Affected: 7cc00abef071a8a7d0f4457b7afa2f57f683d83f (git) Affected: 05b0f2fc3c2f9efda47439557e0d51faca7e43ed (git) Affected: 3.2.87 , < 3.3 (semver) Affected: 3.10.106 , < 3.11 (semver) Affected: 3.12.70 , < 3.13 (semver) Affected: 3.16.42 , < 3.17 (semver) Affected: 4.1.39 , < 4.2 (semver) Affected: 4.4.42 , < 4.5 (semver) Affected: 4.9.3 , < 4.10 (semver) |
|
| Linux | Linux |
Affected:
4.10
Unaffected: 0 , < 4.10 (semver) Unaffected: 4.19.318 , ≤ 4.19.* (semver) Unaffected: 5.4.280 , ≤ 5.4.* (semver) Unaffected: 5.10.222 , ≤ 5.10.* (semver) Unaffected: 5.15.163 , ≤ 5.15.* (semver) Unaffected: 6.1.100 , ≤ 6.1.* (semver) Unaffected: 6.6.41 , ≤ 6.6.* (semver) Unaffected: 6.9.10 , ≤ 6.9.* (semver) Unaffected: 6.10 , ≤ * (original_commit_for_fix) |
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CVE-2024-41040 (GCVE-0-2024-41040)
Vulnerability from cvelistv5 – Published: 2024-07-29 14:31 – Updated: 2026-08-05 11:34
VLAI
EPSS
VEX
Title
net/sched: Fix UAF when resolving a clash
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/sched: Fix UAF when resolving a clash
KASAN reports the following UAF:
BUG: KASAN: slab-use-after-free in tcf_ct_flow_table_process_conn+0x12b/0x380 [act_ct]
Read of size 1 at addr ffff888c07603600 by task handler130/6469
Call Trace:
<IRQ>
dump_stack_lvl+0x48/0x70
print_address_description.constprop.0+0x33/0x3d0
print_report+0xc0/0x2b0
kasan_report+0xd0/0x120
__asan_load1+0x6c/0x80
tcf_ct_flow_table_process_conn+0x12b/0x380 [act_ct]
tcf_ct_act+0x886/0x1350 [act_ct]
tcf_action_exec+0xf8/0x1f0
fl_classify+0x355/0x360 [cls_flower]
__tcf_classify+0x1fd/0x330
tcf_classify+0x21c/0x3c0
sch_handle_ingress.constprop.0+0x2c5/0x500
__netif_receive_skb_core.constprop.0+0xb25/0x1510
__netif_receive_skb_list_core+0x220/0x4c0
netif_receive_skb_list_internal+0x446/0x620
napi_complete_done+0x157/0x3d0
gro_cell_poll+0xcf/0x100
__napi_poll+0x65/0x310
net_rx_action+0x30c/0x5c0
__do_softirq+0x14f/0x491
__irq_exit_rcu+0x82/0xc0
irq_exit_rcu+0xe/0x20
common_interrupt+0xa1/0xb0
</IRQ>
<TASK>
asm_common_interrupt+0x27/0x40
Allocated by task 6469:
kasan_save_stack+0x38/0x70
kasan_set_track+0x25/0x40
kasan_save_alloc_info+0x1e/0x40
__kasan_krealloc+0x133/0x190
krealloc+0xaa/0x130
nf_ct_ext_add+0xed/0x230 [nf_conntrack]
tcf_ct_act+0x1095/0x1350 [act_ct]
tcf_action_exec+0xf8/0x1f0
fl_classify+0x355/0x360 [cls_flower]
__tcf_classify+0x1fd/0x330
tcf_classify+0x21c/0x3c0
sch_handle_ingress.constprop.0+0x2c5/0x500
__netif_receive_skb_core.constprop.0+0xb25/0x1510
__netif_receive_skb_list_core+0x220/0x4c0
netif_receive_skb_list_internal+0x446/0x620
napi_complete_done+0x157/0x3d0
gro_cell_poll+0xcf/0x100
__napi_poll+0x65/0x310
net_rx_action+0x30c/0x5c0
__do_softirq+0x14f/0x491
Freed by task 6469:
kasan_save_stack+0x38/0x70
kasan_set_track+0x25/0x40
kasan_save_free_info+0x2b/0x60
____kasan_slab_free+0x180/0x1f0
__kasan_slab_free+0x12/0x30
slab_free_freelist_hook+0xd2/0x1a0
__kmem_cache_free+0x1a2/0x2f0
kfree+0x78/0x120
nf_conntrack_free+0x74/0x130 [nf_conntrack]
nf_ct_destroy+0xb2/0x140 [nf_conntrack]
__nf_ct_resolve_clash+0x529/0x5d0 [nf_conntrack]
nf_ct_resolve_clash+0xf6/0x490 [nf_conntrack]
__nf_conntrack_confirm+0x2c6/0x770 [nf_conntrack]
tcf_ct_act+0x12ad/0x1350 [act_ct]
tcf_action_exec+0xf8/0x1f0
fl_classify+0x355/0x360 [cls_flower]
__tcf_classify+0x1fd/0x330
tcf_classify+0x21c/0x3c0
sch_handle_ingress.constprop.0+0x2c5/0x500
__netif_receive_skb_core.constprop.0+0xb25/0x1510
__netif_receive_skb_list_core+0x220/0x4c0
netif_receive_skb_list_internal+0x446/0x620
napi_complete_done+0x157/0x3d0
gro_cell_poll+0xcf/0x100
__napi_poll+0x65/0x310
net_rx_action+0x30c/0x5c0
__do_softirq+0x14f/0x491
The ct may be dropped if a clash has been resolved but is still passed to
the tcf_ct_flow_table_process_conn function for further usage. This issue
can be fixed by retrieving ct from skb again after confirming conntrack.
Severity
9.8 (Critical)
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:
f07c548314776231f0d47d73ec6caa5b17e876e8 , < b81a523d54ea689414f67c9fb81a5b917a41ed55
(git)
Affected: 0cc254e5aa37cf05f65bcdcdc0ac5c58010feb33 , < 2b4d68df3f57ea746c430941ba9c03d7d8b5a23f (git) Affected: 0cc254e5aa37cf05f65bcdcdc0ac5c58010feb33 , < 4e71b10a100861fb27d9c5755dfd68f615629fae (git) Affected: 0cc254e5aa37cf05f65bcdcdc0ac5c58010feb33 , < 799a34901b634008db4a7ece3900e2b971d4c932 (git) Affected: 0cc254e5aa37cf05f65bcdcdc0ac5c58010feb33 , < ef472cc6693b16b202a916482df72f35d94bd69e (git) Affected: 0cc254e5aa37cf05f65bcdcdc0ac5c58010feb33 , < 26488172b0292bed837b95a006a3f3431d1898c3 (git) Affected: 30822781c89943b6a3ed122324ceb37cea7042a3 (git) Affected: 5.10.43 , < 5.10.222 (semver) Affected: 5.12.10 , < 5.13 (semver) |
|
| Linux | Linux |
Affected:
5.13
Unaffected: 0 , < 5.13 (semver) Unaffected: 5.10.222 , ≤ 5.10.* (semver) Unaffected: 5.15.163 , ≤ 5.15.* (semver) Unaffected: 6.1.100 , ≤ 6.1.* (semver) Unaffected: 6.6.41 , ≤ 6.6.* (semver) Unaffected: 6.9.10 , ≤ 6.9.* (semver) Unaffected: 6.10 , ≤ * (original_commit_for_fix) |
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"value": "AV:N - The vulnerable code executes in the NAPI receive softirq (`sch_handle_ingress` \u2192 `tcf_classify` \u2192 `tcf_ct_act`) on data taken directly from arriving packets, as the KASAN `\u003cIRQ\u003e`/`net_rx_action` trace shows. On any host configured with `action ct commit` (OVS-TC/OVN/Kubernetes offload nodes, the subsystem\u0027s primary deployment), an off-host attacker triggers it purely by sending routable UDP/ICMP/GRE traffic to or through the node.\nAC:L - The attacker controls both sides of the race by flooding packets with an identical 5-tuple, which RSS spreads across CPUs so two unconfirmed conntracks reach `nf_conntrack_confirm` concurrently \u2014 conntrack clashes on UDP bursts are so routine that the kernel has dedicated clash-resolution machinery and counters for them. Once a clash occurs the free of the loser ct and the subsequent stale dereference are deterministic.\nPR:N - Conntrack processing happens on ingress before any application-layer authentication or socket delivery, so the attacker needs no account, credentials, or local access on the target. The tc/act_ct configuration is established by the administrator as part of normal deployment, not by the attacker.\nUI:N - The UAF is triggered entirely by unsolicited inbound packets processed in softirq context; no local user or administrator has to open, mount, or interact with anything.\nS:U - The freed conntrack object, the corrupting writes, and the impacted flow-offload table all live within the same host kernel\u0027s security authority. No VM, IOMMU, or sandbox boundary is crossed.\nC:H - The freed `nf_ct_ext` is a plain kmalloc object that an attacker can reclaim and spray, and `nf_conn_act_ct_ext_find()` uses an attacker-controlled `u8` offset from it as a pointer offset, yielding a controlled out-of-bounds read whose result is written into the offload tuple. The dangling `nf_conn` is also read wholesale into the flow entry, exposing reclaimed kernel memory.\nI:H - `tcf_ct_flow_table_add()` writes into the freed object \u2014 `test_and_set_bit(IPS_OFFLOAD_BIT, \u0026ct-\u003estatus)`, `refcount_inc(\u0026ct-\u003ect_general.use)`, and `ct-\u003eproto.tcp.seen[].flags |=` \u2014 and persists `flow-\u003ect` as a dangling pointer in the flow-offload table. With the `nf_conn` slab (SLAB_TYPESAFE_BY_RCU) reclaimed by attacker-sprayed connections, this produces refcount confusion and later double-free/UAF on a live object, a classic path to control-flow hijack.\nA:H - The use-after-free reliably crashes the kernel in softirq context under KASAN or slab poisoning, and unpoisoned it corrupts conntrack refcounting and the flow-offload table, leading to oops or panic. The attacker can repeat the packet flood indefinitely to keep re-triggering it."
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CVE-2024-41041 (GCVE-0-2024-41041)
Vulnerability from cvelistv5 – Published: 2024-07-29 14:31 – Updated: 2026-08-05 11:34
VLAI
EPSS
VEX
Title
udp: Set SOCK_RCU_FREE earlier in udp_lib_get_port().
Summary
In the Linux kernel, the following vulnerability has been resolved:
udp: Set SOCK_RCU_FREE earlier in udp_lib_get_port().
syzkaller triggered the warning [0] in udp_v4_early_demux().
In udp_v[46]_early_demux() and sk_lookup(), we do not touch the refcount
of the looked-up sk and use sock_pfree() as skb->destructor, so we check
SOCK_RCU_FREE to ensure that the sk is safe to access during the RCU grace
period.
Currently, SOCK_RCU_FREE is flagged for a bound socket after being put
into the hash table. Moreover, the SOCK_RCU_FREE check is done too early
in udp_v[46]_early_demux() and sk_lookup(), so there could be a small race
window:
CPU1 CPU2
---- ----
udp_v4_early_demux() udp_lib_get_port()
| |- hlist_add_head_rcu()
|- sk = __udp4_lib_demux_lookup() |
|- DEBUG_NET_WARN_ON_ONCE(sk_is_refcounted(sk));
`- sock_set_flag(sk, SOCK_RCU_FREE)
We had the same bug in TCP and fixed it in commit 871019b22d1b ("net:
set SOCK_RCU_FREE before inserting socket into hashtable").
Let's apply the same fix for UDP.
[0]:
WARNING: CPU: 0 PID: 11198 at net/ipv4/udp.c:2599 udp_v4_early_demux+0x481/0xb70 net/ipv4/udp.c:2599
Modules linked in:
CPU: 0 PID: 11198 Comm: syz-executor.1 Not tainted 6.9.0-g93bda33046e7 #13
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
RIP: 0010:udp_v4_early_demux+0x481/0xb70 net/ipv4/udp.c:2599
Code: c5 7a 15 fe bb 01 00 00 00 44 89 e9 31 ff d3 e3 81 e3 bf ef ff ff 89 de e8 2c 74 15 fe 85 db 0f 85 02 06 00 00 e8 9f 7a 15 fe <0f> 0b e8 98 7a 15 fe 49 8d 7e 60 e8 4f 39 2f fe 49 c7 46 60 20 52
RSP: 0018:ffffc9000ce3fa58 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8318c92c
RDX: ffff888036ccde00 RSI: ffffffff8318c2f1 RDI: 0000000000000001
RBP: ffff88805a2dd6e0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0001ffffffffffff R12: ffff88805a2dd680
R13: 0000000000000007 R14: ffff88800923f900 R15: ffff88805456004e
FS: 00007fc449127640(0000) GS:ffff88807dc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc449126e38 CR3: 000000003de4b002 CR4: 0000000000770ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
PKRU: 55555554
Call Trace:
<TASK>
ip_rcv_finish_core.constprop.0+0xbdd/0xd20 net/ipv4/ip_input.c:349
ip_rcv_finish+0xda/0x150 net/ipv4/ip_input.c:447
NF_HOOK include/linux/netfilter.h:314 [inline]
NF_HOOK include/linux/netfilter.h:308 [inline]
ip_rcv+0x16c/0x180 net/ipv4/ip_input.c:569
__netif_receive_skb_one_core+0xb3/0xe0 net/core/dev.c:5624
__netif_receive_skb+0x21/0xd0 net/core/dev.c:5738
netif_receive_skb_internal net/core/dev.c:5824 [inline]
netif_receive_skb+0x271/0x300 net/core/dev.c:5884
tun_rx_batched drivers/net/tun.c:1549 [inline]
tun_get_user+0x24db/0x2c50 drivers/net/tun.c:2002
tun_chr_write_iter+0x107/0x1a0 drivers/net/tun.c:2048
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0x76f/0x8d0 fs/read_write.c:590
ksys_write+0xbf/0x190 fs/read_write.c:643
__do_sys_write fs/read_write.c:655 [inline]
__se_sys_write fs/read_write.c:652 [inline]
__x64_sys_write+0x41/0x50 fs/read_write.c:652
x64_sys_call+0xe66/0x1990 arch/x86/include/generated/asm/syscalls_64.h:2
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x4b/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x4b/0x53
RIP: 0033:0x7fc44a68bc1f
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 e9 cf f5 ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 3c d0 f5 ff 48
RSP: 002b:00007fc449126c90 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00000000004bc050 RCX: 00007fc44a68bc1f
R
---truncated---
Severity
7.8 (High)
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:
6acc9b432e6714d72d7d77ec7c27f6f8358d0c71 , < 7a67c4e47626e6daccda62888f8b096abb5d3940
(git)
Affected: 6acc9b432e6714d72d7d77ec7c27f6f8358d0c71 , < 9f965684c57c3117cfd2f754dd3270383c529fba (git) Affected: 6acc9b432e6714d72d7d77ec7c27f6f8358d0c71 , < ddf516e50bf8a7bc9b3bd8a9831f9c7a8131a32a (git) Affected: 6acc9b432e6714d72d7d77ec7c27f6f8358d0c71 , < a6db0d3ea6536e7120871e5448b3032570152ec6 (git) Affected: 6acc9b432e6714d72d7d77ec7c27f6f8358d0c71 , < c5fd77ca13d657c6e99bf04f0917445e6a80231e (git) Affected: 6acc9b432e6714d72d7d77ec7c27f6f8358d0c71 , < 20ceae10623c3b29fdf7609690849475bcdebdb0 (git) Affected: 6acc9b432e6714d72d7d77ec7c27f6f8358d0c71 , < 5c0b485a8c6116516f33925b9ce5b6104a6eadfd (git) |
|
| Linux | Linux |
Affected:
4.20
Unaffected: 0 , < 4.20 (semver) Unaffected: 5.4.280 , ≤ 5.4.* (semver) Unaffected: 5.10.222 , ≤ 5.10.* (semver) Unaffected: 5.15.163 , ≤ 5.15.* (semver) Unaffected: 6.1.100 , ≤ 6.1.* (semver) Unaffected: 6.6.41 , ≤ 6.6.* (semver) Unaffected: 6.9.10 , ≤ 6.9.* (semver) Unaffected: 6.10 , ≤ * (original_commit_for_fix) |
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"value": "AV:L - The racing writer side is `udp_lib_get_port()`, reached only through a local `bind()`/`connect()` syscall on a UDP socket, and the reader side needs a packet on a dst-less receive path (tun/veth), which the attacker creates locally in their own netns. A remote peer sending UDP packets cannot by itself put a socket into the unflagged window, so the bug is not remotely reachable.\nAC:L - The attacker owns both halves of the race \u2014 a thread loop calling `bind()`/`connect()` on UDP sockets and a concurrent injector feeding matching packets through tun/veth \u2014 and can widen the window by contending `hslot2-\u003elock` and by running massively in parallel across CPUs. Per the race guidance, an attacker-created race is Low complexity.\nPR:L - Binding UDP sockets requires no privilege at all, and the packet-injection side (tun/veth creation) is obtained by any unprivileged user via `unshare -Urn`, where CAP_NET_ADMIN is granted in the new user namespace. No real root or init-namespace capability is needed.\nUI:N - The attacker performs every step \u2014 socket binding, device setup, and packet injection \u2014 with no action required from any other user or administrator.\nS:U - The refcount underflow, use-after-free, and any resulting panic all occur in the kernel of the same host under the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - `skb_steal_sock()` reading a stale-clear `SOCK_RCU_FREE` yields `refcounted == true`, so `udp_rcv()` drops a reference it never took, freeing `struct udp_sock` while the owning fd and the hash tables still point at it. The resulting use-after-free lets an attacker refill the slab and read back kernel memory through subsequent socket operations.\nI:H - The same unbalanced `sock_put()` produces a use-after-free on a socket object containing function pointers (`sk_prot`, `sk_data_ready`, `sk_destruct`) and list heads, which is a classic heap-spray target giving arbitrary-write and control-flow-hijack primitives.\nA:H - The race trips `DEBUG_NET_WARN_ON_ONCE()` in `udp_v4_early_demux()` and the unconditional `WARN_ONCE(1, \"Found non-RCU, unreferenced socket!\")` in `sk_lookup()`, tainting the kernel and panicking outright on `panic_on_warn=1` systems; the premature socket free additionally corrupts the UDP hash lists and crashes the kernel even when not exploited further."
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CVE-2024-41044 (GCVE-0-2024-41044)
Vulnerability from cvelistv5 – Published: 2024-07-29 14:32 – Updated: 2026-05-11 20:25
VLAI
EPSS
VEX
Title
ppp: reject claimed-as-LCP but actually malformed packets
Summary
In the Linux kernel, the following vulnerability has been resolved:
ppp: reject claimed-as-LCP but actually malformed packets
Since 'ppp_async_encode()' assumes valid LCP packets (with code
from 1 to 7 inclusive), add 'ppp_check_packet()' to ensure that
LCP packet has an actual body beyond PPP_LCP header bytes, and
reject claimed-as-LCP but actually malformed data otherwise.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
9 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 97d1efd8be26615ff680cdde86937d5943138f37
(git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 6e8f1c21174f9482033bbb59f13ce1a8cbe843c3 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 3ba12c2afd933fc1bf800f6d3f6c7ec8f602ce56 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ebc5c630457783d17d0c438b0ad70b232a64a82f (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 3134bdf7356ed952dcecb480861d2afcc1e40492 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 099502ca410922b56353ccef2749bc0de669da78 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d683e7f3fc48f59576af34631b4fb07fd931343e (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < f2aeb7306a898e1cbd03963d376f4b6656ca2b55 (git) |
|
| Linux | Linux |
Affected:
2.6.12
Unaffected: 0 , < 2.6.12 (semver) Unaffected: 4.19.318 , ≤ 4.19.* (semver) Unaffected: 5.4.280 , ≤ 5.4.* (semver) Unaffected: 5.10.222 , ≤ 5.10.* (semver) Unaffected: 5.15.163 , ≤ 5.15.* (semver) Unaffected: 6.1.100 , ≤ 6.1.* (semver) Unaffected: 6.6.41 , ≤ 6.6.* (semver) Unaffected: 6.9.10 , ≤ 6.9.* (semver) Unaffected: 6.10 , ≤ * (original_commit_for_fix) |
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CVE-2024-41046 (GCVE-0-2024-41046)
Vulnerability from cvelistv5 – Published: 2024-07-29 14:32 – Updated: 2026-08-05 11:34
VLAI
EPSS
VEX
Title
net: ethernet: lantiq_etop: fix double free in detach
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: ethernet: lantiq_etop: fix double free in detach
The number of the currently released descriptor is never incremented
which results in the same skb being released multiple times.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
9 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
504d4721ee8e432af4b5f196a08af38bc4dac5fe , < 1a2db00a554cfda57c397cce79b2804bf9633fec
(git)
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|
| Linux | Linux |
Affected:
3.0
Unaffected: 0 , < 3.0 (semver) Unaffected: 4.19.318 , ≤ 4.19.* (semver) Unaffected: 5.4.280 , ≤ 5.4.* (semver) Unaffected: 5.10.222 , ≤ 5.10.* (semver) Unaffected: 5.15.163 , ≤ 5.15.* (semver) Unaffected: 6.1.100 , ≤ 6.1.* (semver) Unaffected: 6.6.41 , ≤ 6.6.* (semver) Unaffected: 6.9.10 , ≤ 6.9.* (semver) Unaffected: 6.10 , ≤ * (original_commit_for_fix) |
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CVE-2024-41049 (GCVE-0-2024-41049)
Vulnerability from cvelistv5 – Published: 2024-07-29 14:32 – Updated: 2026-08-05 11:35
VLAI
EPSS
VEX
Title
filelock: fix potential use-after-free in posix_lock_inode
Summary
In the Linux kernel, the following vulnerability has been resolved:
filelock: fix potential use-after-free in posix_lock_inode
Light Hsieh reported a KASAN UAF warning in trace_posix_lock_inode().
The request pointer had been changed earlier to point to a lock entry
that was added to the inode's list. However, before the tracepoint could
fire, another task raced in and freed that lock.
Fix this by moving the tracepoint inside the spinlock, which should
ensure that this doesn't happen.
Severity
7.8 (High)
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:
117fb80cd1e63c419c7a221ce070becb4bfc7b6d , < 1cbbb3d9475c403ebedc327490c7c2b991398197
(git)
Affected: a6f4129378ca15f62cbdde09a7d3ccc35adcf49d , < 7d4c14f4b511fd4c0dc788084ae59b4656ace58b (git) Affected: 766e56faddbec2eaf70c9299e1c9ef74d846d32b , < 02a8964260756c70b20393ad4006948510ac9967 (git) Affected: 34bff6d850019e00001129d6de3aa4874c2cf471 , < 5cb36e35bc10ea334810937990c2b9023dacb1b0 (git) Affected: 74f6f5912693ce454384eaeec48705646a21c74f , < 432b06b69d1d354a171f7499141116536579eb6a (git) Affected: 74f6f5912693ce454384eaeec48705646a21c74f , < 116599f6a26906cf33f67975c59f0692ecf7e9b2 (git) Affected: 74f6f5912693ce454384eaeec48705646a21c74f , < 1b3ec4f7c03d4b07bad70697d7e2f4088d2cfe92 (git) Affected: e75396988bb9b3b90e6e8690604d0f566cea403a (git) Affected: 5.4.257 , < 5.4.280 (semver) Affected: 5.10.197 , < 5.10.222 (semver) Affected: 5.15.133 , < 5.15.163 (semver) Affected: 6.1.55 , < 6.1.100 (semver) Affected: 6.5.5 , < 6.6 (semver) |
|
| Linux | Linux |
Affected:
6.6
Unaffected: 0 , < 6.6 (semver) Unaffected: 5.4.280 , ≤ 5.4.* (semver) Unaffected: 5.10.222 , ≤ 5.10.* (semver) Unaffected: 5.15.163 , ≤ 5.15.* (semver) Unaffected: 6.1.100 , ≤ 6.1.* (semver) Unaffected: 6.6.41 , ≤ 6.6.* (semver) Unaffected: 6.9.10 , ≤ 6.9.* (semver) Unaffected: 6.10 , ≤ * (original_commit_for_fix) |
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"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.6"
},
{
"lessThan": "6.6",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.280",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.222",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.163",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.100",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.41",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.9.*",
"status": "unaffected",
"version": "6.9.10",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.10",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.280",
"versionStartIncluding": "5.4.257",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.222",
"versionStartIncluding": "5.10.197",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.163",
"versionStartIncluding": "5.15.133",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.100",
"versionStartIncluding": "6.1.55",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.41",
"versionStartIncluding": "6.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.9.10",
"versionStartIncluding": "6.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.10",
"versionStartIncluding": "6.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.5.5",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfilelock: fix potential use-after-free in posix_lock_inode\n\nLight Hsieh reported a KASAN UAF warning in trace_posix_lock_inode().\nThe request pointer had been changed earlier to point to a lock entry\nthat was added to the inode\u0027s list. However, before the tracepoint could\nfire, another task raced in and freed that lock.\n\nFix this by moving the tracepoint inside the spinlock, which should\nensure that this doesn\u0027t happen."
}
],
"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 `posix_lock_inode()` is reached from the local `fcntl(F_SETLK/F_SETLKW/F_OFD_SETLK)` syscall path (`fcntl_setlk` \u2192 `do_lock_file_wait` \u2192 `vfs_lock_file` \u2192 `posix_lock_file`), which is the universally present attack surface on every system. The nfsd/lockd/ksmbd callers of `vfs_lock_file()` also reach it, but those require an optional network file server to be configured and exporting a filesystem with no private `-\u003elock`, so the core defect is characterized as local.\nAC:L - The attacker controls both sides of the race: one thread issues an overlapping same-type `F_SETLK` that merges into an existing lock (making `request` point at a list-resident lock), while a second attacker thread issues an overlapping `F_UNLCK`/`close()` that deletes and `kmem_cache_free()`s that entry, and the window between `spin_unlock(\u0026ctx-\u003eflc_lock)`/`percpu_up_read()` and the tracepoint can be hit repeatedly in a tight loop with threads pinned to separate CPUs. Consistent with this CNA\u0027s scoring of other tracepoint-gated use-after-frees (CVE-2026-63910, CVE-2024-56759), the tracepoint-enabled precondition does not raise complexity.\nPR:L - Any unprivileged local user can call `fcntl()` on a file descriptor for a file it can already open; the only gate on the path is the `security_file_lock()` LSM hook, with no capability, root, or namespace requirement. POSIX advisory locks work on ordinary files in `/tmp`, `/dev/shm`, or the user\u0027s home directory.\nUI:N - The attacker\u0027s own threads perform every step \u2014 allocating the lock, merging it, and freeing it concurrently \u2014 with no action required from any other user or administrator.\nS:U - The freed `struct file_lock`, the corrupted read, and any resulting panic are all confined to the kernel of the same system; no VM, IOMMU, container, or sandbox boundary is crossed.\nC:H - The tracepoint reads seven fields out of a freed `filelock_cache` object \u2014 including the raw `flc_blocker` and `flc_owner` kernel pointers and the 64-bit `fl_start`/`fl_end` \u2014 after the attacker has had the opportunity to groom and reallocate that slab object, disclosing arbitrary reallocated kernel memory contents and defeating KASLR. Per kernel scoring guidance, use-after-free is rated High.\nI:H - A use-after-free on a `struct file_lock` that the attacker can reliably reallocate under control gives the classic UAF primitive \u2014 the stale `request` pointer is consumed as a live object after `kmem_cache_free()`, and heap spraying against the freed slot makes the condition exploitable for memory corruption rather than a benign stale read. Consistent with kernel guidance and this CNA\u0027s rating of the equivalent `dma_buf_fd()` tracepoint UAF, integrity impact is High.\nA:H - This is precisely the reported failure mode: the UAF read faulted the kernel on the reporter\u0027s MTE-enabled ARM64 system (`do_tag_check_fault` \u2192 `__do_kernel_fault` \u2192 panic), and on KASAN, hardware-tag, `slub_debug`, or `DEBUG_PAGEALLOC` builds the dereference of freed slab memory oopses. The race can be re-triggered in a loop, giving a repeatable local denial of service."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T11:35:00.349Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/1cbbb3d9475c403ebedc327490c7c2b991398197"
},
{
"url": "https://git.kernel.org/stable/c/7d4c14f4b511fd4c0dc788084ae59b4656ace58b"
},
{
"url": "https://git.kernel.org/stable/c/02a8964260756c70b20393ad4006948510ac9967"
},
{
"url": "https://git.kernel.org/stable/c/5cb36e35bc10ea334810937990c2b9023dacb1b0"
},
{
"url": "https://git.kernel.org/stable/c/432b06b69d1d354a171f7499141116536579eb6a"
},
{
"url": "https://git.kernel.org/stable/c/116599f6a26906cf33f67975c59f0692ecf7e9b2"
},
{
"url": "https://git.kernel.org/stable/c/1b3ec4f7c03d4b07bad70697d7e2f4088d2cfe92"
}
],
"title": "filelock: fix potential use-after-free in posix_lock_inode",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-41049",
"datePublished": "2024-07-29T14:32:05.953Z",
"dateReserved": "2024-07-12T12:17:45.625Z",
"dateUpdated": "2026-08-05T11:35:00.349Z",
"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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