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WID-SEC-W-2025-2043
Vulnerability from csaf_certbund - Published: 2025-09-11 22:00 - Updated: 2025-10-01 22:00Summary
IBM QRadar SIEM: Mehrere Schwachstellen
Severity
Mittel
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung: IBM QRadar Security Information and Event Management (SIEM) bietet Unterstützung bei der Erkennung und Priorisierung von Sicherheitsbedrohungen im Unternehmen.
Angriff: Ein Angreifer kann mehrere Schwachstellen in IBM QRadar SIEM ausnutzen, um beliebigen Programmcode auszuführen, einen Denial of Service Zustand zu erzeugen, um Dateien zu manipulieren und um nicht nächer spezifizierte Auswirkungen zu erzielen..
Betroffene Betriebssysteme: - Linux
- UNIX
Affected products
Known affected
2 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Red Hat Enterprise Linux
Red Hat
|
cpe:/o:redhat:enterprise_linux:-
|
— | |
|
IBM QRadar SIEM <7.5.0 UP13 IF02
IBM / QRadar SIEM
|
<7.5.0 UP13 IF02 |
Affected products
Known affected
2 products, the same list as for
CVE-2021-47670
Affected products
Known affected
2 products, the same list as for
CVE-2021-47670
Affected products
Known affected
2 products, the same list as for
CVE-2021-47670
Affected products
Known affected
2 products, the same list as for
CVE-2021-47670
Affected products
Known affected
2 products, the same list as for
CVE-2021-47670
Affected products
Known affected
2 products, the same list as for
CVE-2021-47670
Affected products
Known affected
2 products, the same list as for
CVE-2021-47670
Affected products
Known affected
2 products, the same list as for
CVE-2021-47670
Affected products
Known affected
2 products, the same list as for
CVE-2021-47670
Affected products
Known affected
2 products, the same list as for
CVE-2021-47670
Affected products
Known affected
2 products, the same list as for
CVE-2021-47670
Affected products
Known affected
2 products, the same list as for
CVE-2021-47670
Affected products
Known affected
2 products, the same list as for
CVE-2021-47670
Affected products
Known affected
2 products, the same list as for
CVE-2021-47670
Affected products
Known affected
2 products, the same list as for
CVE-2021-47670
Affected products
Known affected
2 products, the same list as for
CVE-2021-47670
Affected products
Known affected
2 products, the same list as for
CVE-2021-47670
Affected products
Known affected
2 products, the same list as for
CVE-2021-47670
References
5 references
{
"document": {
"aggregate_severity": {
"text": "mittel"
},
"category": "csaf_base",
"csaf_version": "2.0",
"distribution": {
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "de-DE",
"notes": [
{
"category": "legal_disclaimer",
"text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
},
{
"category": "description",
"text": "IBM QRadar Security Information and Event Management (SIEM) bietet Unterst\u00fctzung bei der Erkennung und Priorisierung von Sicherheitsbedrohungen im Unternehmen.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein Angreifer kann mehrere Schwachstellen in IBM QRadar SIEM ausnutzen, um beliebigen Programmcode auszuf\u00fchren, einen Denial of Service Zustand zu erzeugen, um Dateien zu manipulieren und um nicht n\u00e4cher spezifizierte Auswirkungen zu erzielen..",
"title": "Angriff"
},
{
"category": "general",
"text": "- Linux\n- UNIX",
"title": "Betroffene Betriebssysteme"
}
],
"publisher": {
"category": "other",
"contact_details": "csaf-provider@cert-bund.de",
"name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
"namespace": "https://www.bsi.bund.de"
},
"references": [
{
"category": "self",
"summary": "WID-SEC-W-2025-2043 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2025/wid-sec-w-2025-2043.json"
},
{
"category": "self",
"summary": "WID-SEC-2025-2043 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2025-2043"
},
{
"category": "external",
"summary": "IBM Security Bulletin 7244784 vom 2025-09-12",
"url": "https://www.ibm.com/support/pages/node/7244784"
},
{
"category": "external",
"summary": "IBM Security Bulletin 7244786 vom 2025-09-12",
"url": "https://www.ibm.com/support/pages/node/7244786"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2025:17161 vom 2025-10-01",
"url": "https://access.redhat.com/errata/RHSA-2025:17161"
}
],
"source_lang": "en-US",
"title": "IBM QRadar SIEM: Mehrere Schwachstellen",
"tracking": {
"current_release_date": "2025-10-01T22:00:00.000+00:00",
"generator": {
"date": "2025-10-02T08:18:55.515+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.4.0"
}
},
"id": "WID-SEC-W-2025-2043",
"initial_release_date": "2025-09-11T22:00:00.000+00:00",
"revision_history": [
{
"date": "2025-09-11T22:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2025-09-14T22:00:00.000+00:00",
"number": "2",
"summary": "Referenz(en) aufgenommen: EUVD-2025-29120"
},
{
"date": "2025-10-01T22:00:00.000+00:00",
"number": "3",
"summary": "Neue Updates von Red Hat aufgenommen"
}
],
"status": "final",
"version": "3"
}
},
"product_tree": {
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"name": "\u003c7.5.0 UP13 IF02",
"product": {
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"product_id": "T046961"
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},
{
"category": "product_version",
"name": "7.5.0 UP13 IF02",
"product": {
"name": "IBM QRadar SIEM 7.5.0 UP13 IF02",
"product_id": "T046961-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:ibm:qradar_siem:7.5.0:up13_if02"
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"name": "Red Hat Enterprise Linux",
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{
"cve": "CVE-2021-47670",
"product_status": {
"known_affected": [
"67646",
"T046961"
]
},
"release_date": "2025-09-11T22:00:00.000+00:00",
"title": "CVE-2021-47670"
},
{
"cve": "CVE-2023-49083",
"product_status": {
"known_affected": [
"67646",
"T046961"
]
},
"release_date": "2025-09-11T22:00:00.000+00:00",
"title": "CVE-2023-49083"
},
{
"cve": "CVE-2024-56644",
"product_status": {
"known_affected": [
"67646",
"T046961"
]
},
"release_date": "2025-09-11T22:00:00.000+00:00",
"title": "CVE-2024-56644"
},
{
"cve": "CVE-2025-21727",
"product_status": {
"known_affected": [
"67646",
"T046961"
]
},
"release_date": "2025-09-11T22:00:00.000+00:00",
"title": "CVE-2025-21727"
},
{
"cve": "CVE-2025-21759",
"product_status": {
"known_affected": [
"67646",
"T046961"
]
},
"release_date": "2025-09-11T22:00:00.000+00:00",
"title": "CVE-2025-21759"
},
{
"cve": "CVE-2025-22058",
"product_status": {
"known_affected": [
"67646",
"T046961"
]
},
"release_date": "2025-09-11T22:00:00.000+00:00",
"title": "CVE-2025-22058"
},
{
"cve": "CVE-2025-22097",
"product_status": {
"known_affected": [
"67646",
"T046961"
]
},
"release_date": "2025-09-11T22:00:00.000+00:00",
"title": "CVE-2025-22097"
},
{
"cve": "CVE-2025-37914",
"product_status": {
"known_affected": [
"67646",
"T046961"
]
},
"release_date": "2025-09-11T22:00:00.000+00:00",
"title": "CVE-2025-37914"
},
{
"cve": "CVE-2025-38085",
"product_status": {
"known_affected": [
"67646",
"T046961"
]
},
"release_date": "2025-09-11T22:00:00.000+00:00",
"title": "CVE-2025-38085"
},
{
"cve": "CVE-2025-38159",
"product_status": {
"known_affected": [
"67646",
"T046961"
]
},
"release_date": "2025-09-11T22:00:00.000+00:00",
"title": "CVE-2025-38159"
},
{
"cve": "CVE-2025-38200",
"product_status": {
"known_affected": [
"67646",
"T046961"
]
},
"release_date": "2025-09-11T22:00:00.000+00:00",
"title": "CVE-2025-38200"
},
{
"cve": "CVE-2025-38250",
"product_status": {
"known_affected": [
"67646",
"T046961"
]
},
"release_date": "2025-09-11T22:00:00.000+00:00",
"title": "CVE-2025-38250"
},
{
"cve": "CVE-2025-38380",
"product_status": {
"known_affected": [
"67646",
"T046961"
]
},
"release_date": "2025-09-11T22:00:00.000+00:00",
"title": "CVE-2025-38380"
},
{
"cve": "CVE-2025-5914",
"product_status": {
"known_affected": [
"67646",
"T046961"
]
},
"release_date": "2025-09-11T22:00:00.000+00:00",
"title": "CVE-2025-5914"
},
{
"cve": "CVE-2025-5994",
"product_status": {
"known_affected": [
"67646",
"T046961"
]
},
"release_date": "2025-09-11T22:00:00.000+00:00",
"title": "CVE-2025-5994"
},
{
"cve": "CVE-2025-6020",
"product_status": {
"known_affected": [
"67646",
"T046961"
]
},
"release_date": "2025-09-11T22:00:00.000+00:00",
"title": "CVE-2025-6020"
},
{
"cve": "CVE-2025-6032",
"product_status": {
"known_affected": [
"67646",
"T046961"
]
},
"release_date": "2025-09-11T22:00:00.000+00:00",
"title": "CVE-2025-6032"
},
{
"cve": "CVE-2025-8194",
"product_status": {
"known_affected": [
"67646",
"T046961"
]
},
"release_date": "2025-09-11T22:00:00.000+00:00",
"title": "CVE-2025-8194"
},
{
"cve": "CVE-2025-0164",
"product_status": {
"known_affected": [
"67646",
"T046961"
]
},
"release_date": "2025-09-11T22:00:00.000+00:00",
"title": "CVE-2025-0164"
}
]
}
CVE-2021-47670 (GCVE-0-2021-47670)
Vulnerability from cvelistv5 – Published: 2025-04-17 18:01 – Updated: 2026-08-05 08:48
VLAI
EPSS
VEX
Title
can: peak_usb: fix use after free bugs
Summary
In the Linux kernel, the following vulnerability has been resolved:
can: peak_usb: fix use after free bugs
After calling peak_usb_netif_rx_ni(skb), dereferencing skb is unsafe.
Especially, the can_frame cf which aliases skb memory is accessed
after the peak_usb_netif_rx_ni().
Reordering the lines solves the issue.
Severity
8.8 (High)
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-17 18:17 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
0a25e1f4f18566b750ebd3ae995af64e23111e63 , < 5408824636fa0dfedb9ecb0d94abd573131bfbbe
(git)
Affected: 0a25e1f4f18566b750ebd3ae995af64e23111e63 , < ddd1416f44130377798c1430b76503513b7497c2 (git) Affected: 0a25e1f4f18566b750ebd3ae995af64e23111e63 , < ec939c13c3fff2114479769c8380b7f1a54feca9 (git) Affected: 0a25e1f4f18566b750ebd3ae995af64e23111e63 , < 50aca891d7a554db0901b245167cd653d73aaa71 (git) |
|
| Linux | Linux |
Affected:
4.0
Unaffected: 0 , < 4.0 (semver) Unaffected: 4.19.171 , ≤ 4.19.* (semver) Unaffected: 5.4.93 , ≤ 5.4.* (semver) Unaffected: 5.10.11 , ≤ 5.10.* (semver) Unaffected: 5.11 , ≤ * (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-2021-47670",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-04-17T18:17:46.529671Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-04-17T18:25:25.160Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/can/usb/peak_usb/pcan_usb_fd.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "5408824636fa0dfedb9ecb0d94abd573131bfbbe",
"status": "affected",
"version": "0a25e1f4f18566b750ebd3ae995af64e23111e63",
"versionType": "git"
},
{
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"status": "affected",
"version": "0a25e1f4f18566b750ebd3ae995af64e23111e63",
"versionType": "git"
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"status": "affected",
"version": "0a25e1f4f18566b750ebd3ae995af64e23111e63",
"versionType": "git"
},
{
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"status": "affected",
"version": "0a25e1f4f18566b750ebd3ae995af64e23111e63",
"versionType": "git"
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]
},
{
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"product": "Linux",
"programFiles": [
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],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.0"
},
{
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"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.171",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.93",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "5.10.11",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "5.11",
"versionType": "original_commit_for_fix"
}
]
}
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"cpeApplicability": [
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"vulnerable": true
},
{
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"versionEndExcluding": "5.4.93",
"versionStartIncluding": "4.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.11",
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"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.11",
"versionStartIncluding": "4.0",
"vulnerable": true
}
],
"negate": false,
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}
],
"descriptions": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: peak_usb: fix use after free bugs\n\nAfter calling peak_usb_netif_rx_ni(skb), dereferencing skb is unsafe.\nEspecially, the can_frame cf which aliases skb memory is accessed\nafter the peak_usb_netif_rx_ni().\n\nReordering the lines solves the issue."
}
],
"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 UAF is in pcan_usb_fd_decode_canmsg/decode_status on the USB bulk RX path that delivers CAN/CAN-FD frames from a PEAK USB FD adapter. In the highest realistic deployment (automotive/industrial host with the adapter already attached and the CAN netdev up), an attacker on the shared CAN bus can send frames that the adapter forwards into this decode path, which is an adjacent-segment attack analogous to Bluetooth/WiFi rather than a pure physical plug-in.\nAC:L - Any received CAN frame or status message that takes the decode path calls peak_usb_netif_rx() and then dereferences the can_frame alias; the attacker fully controls frame generation on the bus and does not depend on an uncontrollable race or rare memory layout to trigger the use-after-free.\nPR:N - CAN-bus peers need no host account or capability; once the PEAK interface is up in normal operation, URB completion runs in kernel context with no authentication of on-bus traffic.\nUI:N - No separate victim action is required beyond the already-deployed adapter and up interface; on-bus frames are processed automatically by peak_usb_read_bulk_callback \u2192 pcan_usb_fd_decode_buf.\nS:U - Impact is confined to the same host kernel that owns the peak_usb driver and skb allocator; this is ordinary kernel memory corruption, not a VM escape, IOMMU bypass, or other cross-authority boundary crossing.\nC:H - This is a use-after-free of an sk_buff/can_frame after ownership transfer to netif_rx; UAF of heap objects enables reclaim and disclosure of freed object contents, so confidentiality is scored High.\nI:H - The same UAF allows heap reuse of the freed skb object and is treated as providing a corruption/write primitive suitable for control-flow hijack under kernel UAF guidance, so integrity is High.\nA:H - Use-after-free of skb memory after netif_rx can oops/panic when the object is reused or unmapped, and UAF bugs are scored High availability even when not fully exploited for code execution."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T08:48:50.364Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/5408824636fa0dfedb9ecb0d94abd573131bfbbe"
},
{
"url": "https://git.kernel.org/stable/c/ddd1416f44130377798c1430b76503513b7497c2"
},
{
"url": "https://git.kernel.org/stable/c/ec939c13c3fff2114479769c8380b7f1a54feca9"
},
{
"url": "https://git.kernel.org/stable/c/50aca891d7a554db0901b245167cd653d73aaa71"
}
],
"title": "can: peak_usb: fix use after free bugs",
"x_generator": {
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}
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"cveMetadata": {
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CVE-2023-49083 (GCVE-0-2023-49083)
Vulnerability from cvelistv5 – Published: 2023-11-29 18:50 – Updated: 2025-12-18 15:32
VLAI
EPSS
VEX
Title
cryptography vulnerable to NULL-dereference when loading PKCS7 certificates
Summary
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Calling `load_pem_pkcs7_certificates` or `load_der_pkcs7_certificates` could lead to a NULL-pointer dereference and segfault. Exploitation of this vulnerability poses a serious risk of Denial of Service (DoS) for any application attempting to deserialize a PKCS7 blob/certificate. The consequences extend to potential disruptions in system availability and stability. This vulnerability has been patched in version 41.0.6.
Severity
5.9 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-18 15:31 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/pyca/cryptography/security/adv… | x_refsource_CONFIRM |
| https://github.com/pyca/cryptography/pull/9926 | x_refsource_MISC |
| https://github.com/pyca/cryptography/commit/f09c2… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | |
| https://lists.debian.org/debian-lts-announce/2024… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| pyca | cryptography |
Affected:
>= 3.1, < 41.0.6
|
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CVE-2024-56644 (GCVE-0-2024-56644)
Vulnerability from cvelistv5 – Published: 2024-12-27 15:02 – Updated: 2026-08-05 11:45
VLAI
EPSS
VEX
Title
net/ipv6: release expired exception dst cached in socket
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/ipv6: release expired exception dst cached in socket
Dst objects get leaked in ip6_negative_advice() when this function is
executed for an expired IPv6 route located in the exception table. There
are several conditions that must be fulfilled for the leak to occur:
* an ICMPv6 packet indicating a change of the MTU for the path is received,
resulting in an exception dst being created
* a TCP connection that uses the exception dst for routing packets must
start timing out so that TCP begins retransmissions
* after the exception dst expires, the FIB6 garbage collector must not run
before TCP executes ip6_negative_advice() for the expired exception dst
When TCP executes ip6_negative_advice() for an exception dst that has
expired and if no other socket holds a reference to the exception dst, the
refcount of the exception dst is 2, which corresponds to the increment
made by dst_init() and the increment made by the TCP socket for which the
connection is timing out. The refcount made by the socket is never
released. The refcount of the dst is decremented in sk_dst_reset() but
that decrement is counteracted by a dst_hold() intentionally placed just
before the sk_dst_reset() in ip6_negative_advice(). After
ip6_negative_advice() has finished, there is no other object tied to the
dst. The socket lost its reference stored in sk_dst_cache and the dst is
no longer in the exception table. The exception dst becomes a leaked
object.
As a result of this dst leak, an unbalanced refcount is reported for the
loopback device of a net namespace being destroyed under kernels that do
not contain e5f80fcf869a ("ipv6: give an IPv6 dev to blackhole_netdev"):
unregister_netdevice: waiting for lo to become free. Usage count = 2
Fix the dst leak by removing the dst_hold() in ip6_negative_advice(). The
patch that introduced the dst_hold() in ip6_negative_advice() was
92f1655aa2b22 ("net: fix __dst_negative_advice() race"). But 92f1655aa2b22
merely refactored the code with regards to the dst refcount so the issue
was present even before 92f1655aa2b22. The bug was introduced in
54c1a859efd9f ("ipv6: Don't drop cache route entry unless timer actually
expired.") where the expired cached route is deleted and the sk_dst_cache
member of the socket is set to NULL by calling dst_negative_advice() but
the refcount belonging to the socket is left unbalanced.
The IPv4 version - ipv4_negative_advice() - is not affected by this bug.
When the TCP connection times out ipv4_negative_advice() merely resets the
sk_dst_cache of the socket while decrementing the refcount of the
exception dst.
Severity
7.5 (High)
Assigner
References
9 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
54c1a859efd9fd6cda05bc700315ba2519c14eba , < a95808252e8acc0123bacd2dff8b9af10bc145b7
(git)
Affected: 54c1a859efd9fd6cda05bc700315ba2519c14eba , < b90d061345bb8cd51fece561a800bae1c95448a6 (git) Affected: 54c1a859efd9fd6cda05bc700315ba2519c14eba , < 0b8903e6c881f72c6849d4952de742c656eb5ab9 (git) Affected: 54c1a859efd9fd6cda05bc700315ba2519c14eba , < 535add1e9f274502209cb997801208bbe1ae6c6f (git) Affected: 54c1a859efd9fd6cda05bc700315ba2519c14eba , < f43d12fd0fa8ee5b9caf8a3927e10d06431764d2 (git) Affected: 54c1a859efd9fd6cda05bc700315ba2519c14eba , < 8b591bd522b71c42a82898290e35d32b482047e4 (git) Affected: 54c1a859efd9fd6cda05bc700315ba2519c14eba , < 3301ab7d5aeb0fe270f73a3d4810c9d1b6a9f045 (git) Affected: 9c93e9c757c7d3d96027a06b9b4c4e37ca87ded7 (git) Affected: 2.6.33.2 , < 2.6.34 (semver) |
|
| Linux | Linux |
Affected:
2.6.34
Unaffected: 0 , < 2.6.34 (semver) Unaffected: 5.4.287 , ≤ 5.4.* (semver) Unaffected: 5.10.231 , ≤ 5.10.* (semver) Unaffected: 5.15.174 , ≤ 5.15.* (semver) Unaffected: 6.1.120 , ≤ 6.1.* (semver) Unaffected: 6.6.66 , ≤ 6.6.* (semver) Unaffected: 6.12.5 , ≤ 6.12.* (semver) Unaffected: 6.13 , ≤ * (original_commit_for_fix) |
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CVE-2025-0164 (GCVE-0-2025-0164)
Vulnerability from cvelistv5 – Published: 2025-09-14 12:57 – Updated: 2025-09-15 15:59
VLAI
EPSS
VEX
Title
IBM QRadar SIEM information disclosure
Summary
IBM QRadar SIEM 7.5 through 7.5 Update Pack 13 Independent Fix 01 could allow a local privileged user to perform unauthorized actions on configuration files due to improper permission assignment.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-09-15 15:59 UTC
CWE
- CWE-732 - Incorrect Permission Assignment for Critical Resource
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7244784 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | QRadar SIEM |
Affected:
7.5 , ≤ 7.5.0 UP13 IF01
(semver)
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CVE-2025-21727 (GCVE-0-2025-21727)
Vulnerability from cvelistv5 – Published: 2025-02-27 02:07 – Updated: 2026-08-05 11:54
VLAI
EPSS
VEX
Title
padata: fix UAF in padata_reorder
Summary
In the Linux kernel, the following vulnerability has been resolved:
padata: fix UAF in padata_reorder
A bug was found when run ltp test:
BUG: KASAN: slab-use-after-free in padata_find_next+0x29/0x1a0
Read of size 4 at addr ffff88bbfe003524 by task kworker/u113:2/3039206
CPU: 0 PID: 3039206 Comm: kworker/u113:2 Kdump: loaded Not tainted 6.6.0+
Workqueue: pdecrypt_parallel padata_parallel_worker
Call Trace:
<TASK>
dump_stack_lvl+0x32/0x50
print_address_description.constprop.0+0x6b/0x3d0
print_report+0xdd/0x2c0
kasan_report+0xa5/0xd0
padata_find_next+0x29/0x1a0
padata_reorder+0x131/0x220
padata_parallel_worker+0x3d/0xc0
process_one_work+0x2ec/0x5a0
If 'mdelay(10)' is added before calling 'padata_find_next' in the
'padata_reorder' function, this issue could be reproduced easily with
ltp test (pcrypt_aead01).
This can be explained as bellow:
pcrypt_aead_encrypt
...
padata_do_parallel
refcount_inc(&pd->refcnt); // add refcnt
...
padata_do_serial
padata_reorder // pd
while (1) {
padata_find_next(pd, true); // using pd
queue_work_on
...
padata_serial_worker crypto_del_alg
padata_put_pd_cnt // sub refcnt
padata_free_shell
padata_put_pd(ps->pd);
// pd is freed
// loop again, but pd is freed
// call padata_find_next, UAF
}
In the padata_reorder function, when it loops in 'while', if the alg is
deleted, the refcnt may be decreased to 0 before entering
'padata_find_next', which leads to UAF.
As mentioned in [1], do_serial is supposed to be called with BHs disabled
and always happen under RCU protection, to address this issue, add
synchronize_rcu() in 'padata_free_shell' wait for all _do_serial calls
to finish.
[1] https://lore.kernel.org/all/20221028160401.cccypv4euxikusiq@parnassus.localdomain/
[2] https://lore.kernel.org/linux-kernel/jfjz5d7zwbytztackem7ibzalm5lnxldi2eofeiczqmqs2m7o6@fq426cwnjtkm/
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-27 17:58 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
10 references
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
b128a30409356df65f1a51cff3eb986cac8cfedc , < f78170bee51469734b1a306a74fc5f777bb22ba6
(git)
Affected: b128a30409356df65f1a51cff3eb986cac8cfedc , < f3e0b9f790f8e8065d59e67b565a83154d9f3079 (git) Affected: b128a30409356df65f1a51cff3eb986cac8cfedc , < 0ae2f332cfd2d74cf3ce344ec9938cf3e29c3ccd (git) Affected: b128a30409356df65f1a51cff3eb986cac8cfedc , < bbccae982e9fa1d7abcb23a5ec81cb0ec883f7de (git) Affected: b128a30409356df65f1a51cff3eb986cac8cfedc , < 573ac9c70bf7885dc85d82fa44550581bfc3b738 (git) Affected: b128a30409356df65f1a51cff3eb986cac8cfedc , < 80231f069240d52e98b6a317456c67b2eafd0781 (git) Affected: b128a30409356df65f1a51cff3eb986cac8cfedc , < e01780ea4661172734118d2a5f41bc9720765668 (git) |
|
| Linux | Linux |
Affected:
5.4
Unaffected: 0 , < 5.4 (semver) Unaffected: 5.10.235 , ≤ 5.10.* (semver) Unaffected: 5.15.179 , ≤ 5.15.* (semver) Unaffected: 6.1.129 , ≤ 6.1.* (semver) Unaffected: 6.6.76 , ≤ 6.6.* (semver) Unaffected: 6.12.13 , ≤ 6.12.* (semver) Unaffected: 6.13.2 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix) |
|
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem |
Affected:
0 , < *
(custom)
|
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CVE-2025-21759 (GCVE-0-2025-21759)
Vulnerability from cvelistv5 – Published: 2025-02-27 02:18 – Updated: 2026-08-05 11:54
VLAI
EPSS
VEX
Title
ipv6: mcast: extend RCU protection in igmp6_send()
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv6: mcast: extend RCU protection in igmp6_send()
igmp6_send() can be called without RTNL or RCU being held.
Extend RCU protection so that we can safely fetch the net pointer
and avoid a potential UAF.
Note that we no longer can use sock_alloc_send_skb() because
ipv6.igmp_sk uses GFP_KERNEL allocations which can sleep.
Instead use alloc_skb() and charge the net->ipv6.igmp_sk
socket under RCU protection.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-27 17:57 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 , < 81b25a07ebf53f9ef4ca8f3d96a8ddb94561dd5a
(git)
Affected: b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 , < 0bf8e2f3768629d437a32cb824149e6e98254381 (git) Affected: b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 , < 8e92d6a413feaf968a33f0b439ecf27404407458 (git) Affected: b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551 , < 087c1faa594fa07a66933d750c0b2610aa1a2946 (git) |
|
| Linux | Linux |
Affected:
2.6.26
Unaffected: 0 , < 2.6.26 (semver) Unaffected: 6.6.79 , ≤ 6.6.* (semver) Unaffected: 6.12.16 , ≤ 6.12.* (semver) Unaffected: 6.13.4 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix) |
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CVE-2025-22058 (GCVE-0-2025-22058)
Vulnerability from cvelistv5 – Published: 2025-04-16 14:12 – Updated: 2026-06-11 18:44
VLAI
EPSS
VEX
Title
udp: Fix memory accounting leak.
Summary
In the Linux kernel, the following vulnerability has been resolved:
udp: Fix memory accounting leak.
Matt Dowling reported a weird UDP memory usage issue.
Under normal operation, the UDP memory usage reported in /proc/net/sockstat
remains close to zero. However, it occasionally spiked to 524,288 pages
and never dropped. Moreover, the value doubled when the application was
terminated. Finally, it caused intermittent packet drops.
We can reproduce the issue with the script below [0]:
1. /proc/net/sockstat reports 0 pages
# cat /proc/net/sockstat | grep UDP:
UDP: inuse 1 mem 0
2. Run the script till the report reaches 524,288
# python3 test.py & sleep 5
# cat /proc/net/sockstat | grep UDP:
UDP: inuse 3 mem 524288 <-- (INT_MAX + 1) >> PAGE_SHIFT
3. Kill the socket and confirm the number never drops
# pkill python3 && sleep 5
# cat /proc/net/sockstat | grep UDP:
UDP: inuse 1 mem 524288
4. (necessary since v6.0) Trigger proto_memory_pcpu_drain()
# python3 test.py & sleep 1 && pkill python3
5. The number doubles
# cat /proc/net/sockstat | grep UDP:
UDP: inuse 1 mem 1048577
The application set INT_MAX to SO_RCVBUF, which triggered an integer
overflow in udp_rmem_release().
When a socket is close()d, udp_destruct_common() purges its receive
queue and sums up skb->truesize in the queue. This total is calculated
and stored in a local unsigned integer variable.
The total size is then passed to udp_rmem_release() to adjust memory
accounting. However, because the function takes a signed integer
argument, the total size can wrap around, causing an overflow.
Then, the released amount is calculated as follows:
1) Add size to sk->sk_forward_alloc.
2) Round down sk->sk_forward_alloc to the nearest lower multiple of
PAGE_SIZE and assign it to amount.
3) Subtract amount from sk->sk_forward_alloc.
4) Pass amount >> PAGE_SHIFT to __sk_mem_reduce_allocated().
When the issue occurred, the total in udp_destruct_common() was 2147484480
(INT_MAX + 833), which was cast to -2147482816 in udp_rmem_release().
At 1) sk->sk_forward_alloc is changed from 3264 to -2147479552, and
2) sets -2147479552 to amount. 3) reverts the wraparound, so we don't
see a warning in inet_sock_destruct(). However, udp_memory_allocated
ends up doubling at 4).
Since commit 3cd3399dd7a8 ("net: implement per-cpu reserves for
memory_allocated"), memory usage no longer doubles immediately after
a socket is close()d because __sk_mem_reduce_allocated() caches the
amount in udp_memory_per_cpu_fw_alloc. However, the next time a UDP
socket receives a packet, the subtraction takes effect, causing UDP
memory usage to double.
This issue makes further memory allocation fail once the socket's
sk->sk_rmem_alloc exceeds net.ipv4.udp_rmem_min, resulting in packet
drops.
To prevent this issue, let's use unsigned int for the calculation and
call sk_forward_alloc_add() only once for the small delta.
Note that first_packet_length() also potentially has the same problem.
[0]:
from socket import *
SO_RCVBUFFORCE = 33
INT_MAX = (2 ** 31) - 1
s = socket(AF_INET, SOCK_DGRAM)
s.bind(('', 0))
s.setsockopt(SOL_SOCKET, SO_RCVBUFFORCE, INT_MAX)
c = socket(AF_INET, SOCK_DGRAM)
c.connect(s.getsockname())
data = b'a' * 100
while True:
c.send(data)
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 20:41 UTC
Assigner
References
10 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb , < 13550273171f5108b1ac572d8f72f4256ab92854
(git)
Affected: f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb , < d9c8266ce536e8314d84370e983afcaa36fb19cf (git) Affected: f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb , < c3ad8c30b6b109283d2643e925f8e65f2e7ab34e (git) Affected: f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb , < 9122fec396950cc866137af7154b1d0d989be52e (git) Affected: f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb , < aeef6456692c6f11ae53d278df64f1316a2a405a (git) Affected: f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb , < a116b271bf3cb72c8155b6b7f39083c1b80dcd00 (git) Affected: f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb , < c4bac6c398118fba79e32b1cd01db22dbfe29fbf (git) Affected: f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb , < 3836029448e76c1e6f77cc5fe0adc09b018b5fa8 (git) Affected: f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb , < df207de9d9e7a4d92f8567e2c539d9c8c12fd99d (git) |
|
| Linux | Linux |
Affected:
4.10
Unaffected: 0 , < 4.10 (semver) Unaffected: 5.4.301 , ≤ 5.4.* (semver) Unaffected: 5.10.246 , ≤ 5.10.* (semver) Unaffected: 5.15.195 , ≤ 5.15.* (semver) Unaffected: 6.1.134 , ≤ 6.1.* (semver) Unaffected: 6.6.87 , ≤ 6.6.* (semver) Unaffected: 6.12.23 , ≤ 6.12.* (semver) Unaffected: 6.13.11 , ≤ 6.13.* (semver) Unaffected: 6.14.2 , ≤ 6.14.* (semver) Unaffected: 6.15 , ≤ * (original_commit_for_fix) |
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CVE-2025-22097 (GCVE-0-2025-22097)
Vulnerability from cvelistv5 – Published: 2025-04-16 14:12 – Updated: 2026-05-11 21:12
VLAI
EPSS
VEX
Title
drm/vkms: Fix use after free and double free on init error
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/vkms: Fix use after free and double free on init error
If the driver initialization fails, the vkms_exit() function might
access an uninitialized or freed default_config pointer and it might
double free it.
Fix both possible errors by initializing default_config only when the
driver initialization succeeded.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-25 14:30 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
2df7af93fdadb9ba8226fe443fae15ecdefda2a6 , < 49a69f67f53518bdd9b7eeebf019a2da6cc0e954
(git)
Affected: 2df7af93fdadb9ba8226fe443fae15ecdefda2a6 , < 79d138d137b80eeb0a83244d1cff29e64cf91067 (git) Affected: 2df7af93fdadb9ba8226fe443fae15ecdefda2a6 , < 561fc0c5cf41f646f3e9e61784cbc0fc832fb936 (git) Affected: 2df7af93fdadb9ba8226fe443fae15ecdefda2a6 , < d5eb8e347905ab17788a7903fa1d3d06747355f5 (git) Affected: 2df7af93fdadb9ba8226fe443fae15ecdefda2a6 , < b8a18bb53e06d6d3c1fd03d12533d6e333ba8853 (git) Affected: 2df7af93fdadb9ba8226fe443fae15ecdefda2a6 , < 1f68f1cf09d06061eb549726ff8339e064eddebd (git) Affected: 2df7af93fdadb9ba8226fe443fae15ecdefda2a6 , < ed15511a773df86205bda66c37193569575ae828 (git) |
|
| Linux | Linux |
Affected:
5.12
Unaffected: 0 , < 5.12 (semver) Unaffected: 5.15.180 , ≤ 5.15.* (semver) Unaffected: 6.1.134 , ≤ 6.1.* (semver) Unaffected: 6.6.87 , ≤ 6.6.* (semver) Unaffected: 6.12.23 , ≤ 6.12.* (semver) Unaffected: 6.13.11 , ≤ 6.13.* (semver) Unaffected: 6.14.2 , ≤ 6.14.* (semver) Unaffected: 6.15 , ≤ * (original_commit_for_fix) |
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CVE-2025-37914 (GCVE-0-2025-37914)
Vulnerability from cvelistv5 – Published: 2025-05-20 15:21 – Updated: 2026-08-05 11:58
VLAI
EPSS
VEX
Title
net_sched: ets: Fix double list add in class with netem as child qdisc
Summary
In the Linux kernel, the following vulnerability has been resolved:
net_sched: ets: Fix double list add in class with netem as child qdisc
As described in Gerrard's report [1], there are use cases where a netem
child qdisc will make the parent qdisc's enqueue callback reentrant.
In the case of ets, there won't be a UAF, but the code will add the same
classifier to the list twice, which will cause memory corruption.
In addition to checking for qlen being zero, this patch checks whether
the class was already added to the active_list (cl_is_active) before
doing the addition to cater for the reentrant case.
[1] https://lore.kernel.org/netdev/CAHcdcOm+03OD2j6R0=YHKqmy=VgJ8xEOKuP6c7mSgnp-TEJJbw@mail.gmail.com/
Severity
7.8 (High)
Assigner
References
9 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 , < 24388ba0a1b1b6d4af1b205927ac7f7b119ee4ea
(git)
Affected: dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 , < 554acc5a2ea9703e08023eb9a003f9e5a830a502 (git) Affected: dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 , < 9efb6a0fa88e0910d079fdfeb4f7ce4d4ac6c990 (git) Affected: dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 , < 72c3da7e6ceb74e74ddbb5a305a35c9fdfcac6e3 (git) Affected: dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 , < 1f01e9f961605eb397c6ecd1d7b0233dfbf9077c (git) Affected: dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 , < bc321f714de693aae06e3786f88df2975376d996 (git) Affected: dcc68b4d8084e1ac9af0d4022d6b1aff6a139a33 , < 1a6d0c00fa07972384b0c308c72db091d49988b6 (git) |
|
| Linux | Linux |
Affected:
5.6
Unaffected: 0 , < 5.6 (semver) Unaffected: 5.10.238 , ≤ 5.10.* (semver) Unaffected: 5.15.182 , ≤ 5.15.* (semver) Unaffected: 6.1.138 , ≤ 6.1.* (semver) Unaffected: 6.6.90 , ≤ 6.6.* (semver) Unaffected: 6.12.28 , ≤ 6.12.* (semver) Unaffected: 6.14.6 , ≤ 6.14.* (semver) Unaffected: 6.15 , ≤ * (original_commit_for_fix) |
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CVE-2025-38085 (GCVE-0-2025-38085)
Vulnerability from cvelistv5 – Published: 2025-06-28 07:44 – Updated: 2026-08-05 11:59
VLAI
EPSS
VEX
Title
mm/hugetlb: fix huge_pmd_unshare() vs GUP-fast race
Summary
In the Linux kernel, the following vulnerability has been resolved:
mm/hugetlb: fix huge_pmd_unshare() vs GUP-fast race
huge_pmd_unshare() drops a reference on a page table that may have
previously been shared across processes, potentially turning it into a
normal page table used in another process in which unrelated VMAs can
afterwards be installed.
If this happens in the middle of a concurrent gup_fast(), gup_fast() could
end up walking the page tables of another process. While I don't see any
way in which that immediately leads to kernel memory corruption, it is
really weird and unexpected.
Fix it with an explicit broadcast IPI through tlb_remove_table_sync_one(),
just like we do in khugepaged when removing page tables for a THP
collapse.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 20:41 UTC
Assigner
References
10 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
39dde65c9940c97fcd178a3d2b1c57ed8b7b68aa , < 952596b08c74e8fe9e2883d1dc8a8f54a37384ec
(git)
Affected: 39dde65c9940c97fcd178a3d2b1c57ed8b7b68aa , < a3d864c901a300c295692d129159fc3001a56185 (git) Affected: 39dde65c9940c97fcd178a3d2b1c57ed8b7b68aa , < b7754d3aa7bf9f62218d096c0c8f6c13698fac8b (git) Affected: 39dde65c9940c97fcd178a3d2b1c57ed8b7b68aa , < fe684290418ef9ef76630072086ee530b92f02b8 (git) Affected: 39dde65c9940c97fcd178a3d2b1c57ed8b7b68aa , < 034a52b5ef57c9c8225d94e9067f3390bb33922f (git) Affected: 39dde65c9940c97fcd178a3d2b1c57ed8b7b68aa , < a6bfeb97941a9187833b526bc6cc4ff5706d0ce9 (git) Affected: 39dde65c9940c97fcd178a3d2b1c57ed8b7b68aa , < 1013af4f585fccc4d3e5c5824d174de2257f7d6d (git) |
|
| Linux | Linux |
Affected:
2.6.20
Unaffected: 0 , < 2.6.20 (semver) Unaffected: 5.10.239 , ≤ 5.10.* (semver) Unaffected: 5.15.186 , ≤ 5.15.* (semver) Unaffected: 6.1.142 , ≤ 6.1.* (semver) Unaffected: 6.6.95 , ≤ 6.6.* (semver) Unaffected: 6.12.35 , ≤ 6.12.* (semver) Unaffected: 6.15.4 , ≤ 6.15.* (semver) Unaffected: 6.16 , ≤ * (original_commit_for_fix) |
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"value": "AV:L - The race is driven entirely through local syscalls \u2014 a PUD-aligned MAP_SHARED hugetlbfs/MAP_HUGETLB mapping plus munmap/mremap/mprotect/fallocate to trigger huge_pmd_unshare(), raced against gup_fast() reached via O_DIRECT, io_uring registered buffers or vmsplice. There is no network-facing path into mm/hugetlb.c.\nAC:L - The attacker controls every participant: one thread issues the GUP-fast pin, a sibling thread issues the unmap that calls huge_pmd_unshare(), and a second attacker process reuses the now-exclusively-owned PMD table, and the whole sequence can be looped indefinitely. The gup_fast() IRQ-disabled window can additionally be widened by requesting a full PUD-sized pin range, since the PUD is latched once at the start of gup_fast_pud_range() while the PMD loop then walks 512 entries.\nPR:L - hugetlb_file_setup() performs no capable() check for MAP_HUGETLB anonymous mappings, and none of huge_pmd_unshare()\u0027s callers or the GUP-fast entry points require any capability, so an ordinary local user account suffices. Only a configured hugepage pool is needed, which is standard on cloud, virtualization, DPDK and database hosts.\nUI:N - Exploitation is fully self-contained \u2014 the attacker forks its own second process to establish PMD sharing and to repurpose the unshared page table. No victim action is required at any point.\nS:U - The defect and its impact are both within the kernel\u0027s own memory-management security authority, with no VM, IOMMU or sandbox boundary crossed. This is a standard kernel memory-safety/privilege-escalation shape, so scope remains Unchanged.\nC:H - A gup_fast() walker that latched the stale PUD proceeds to walk a PMD table that now backs a different process\u0027s address space, pinning and returning struct pages that belong to that other mm. Handing those pages to O_DIRECT or vmsplice yields a direct read primitive against another process\u0027s memory, which on hosts where a hugetlbfs segment is shared across trust boundaries (QEMU/vhost-user, DPDK/SPDK, shared DB segments) discloses privileged data.\nI:H - The same stale walk with FOLL_WRITE returns writable pins on pages mapped by the foreign address space, so an O_DIRECT read or io_uring write into that buffer modifies another process\u0027s memory arbitrarily. It also leaves DMA pins and page reference/mapcount state established behind the back of the owning mm, corrupting page-table and pinning invariants the kernel relies on.\nA:H - GUP-fast traversing page tables of an unrelated address space while that process is concurrently tearing down and re-populating them is exactly the unsynchronized page-table access the kernel elsewhere prevents with tlb_remove_table_sync_one(), and it readily produces inconsistent refcount/mapcount state, VM_WARN/BUG trips, and oops in mm paths. The race can be re-armed in a loop by an unprivileged process."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T11:59:23.457Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/952596b08c74e8fe9e2883d1dc8a8f54a37384ec"
},
{
"url": "https://git.kernel.org/stable/c/a3d864c901a300c295692d129159fc3001a56185"
},
{
"url": "https://git.kernel.org/stable/c/b7754d3aa7bf9f62218d096c0c8f6c13698fac8b"
},
{
"url": "https://git.kernel.org/stable/c/fe684290418ef9ef76630072086ee530b92f02b8"
},
{
"url": "https://git.kernel.org/stable/c/034a52b5ef57c9c8225d94e9067f3390bb33922f"
},
{
"url": "https://git.kernel.org/stable/c/a6bfeb97941a9187833b526bc6cc4ff5706d0ce9"
},
{
"url": "https://git.kernel.org/stable/c/1013af4f585fccc4d3e5c5824d174de2257f7d6d"
},
{
"url": "https://project-zero.issues.chromium.org/issues/420715744"
}
],
"title": "mm/hugetlb: fix huge_pmd_unshare() vs GUP-fast race",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-38085",
"datePublished": "2025-06-28T07:44:26.178Z",
"dateReserved": "2025-04-16T04:51:23.981Z",
"dateUpdated": "2026-08-05T11:59:23.457Z",
"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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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