CVE-2025-39902 (GCVE-0-2025-39902)
Vulnerability from cvelistv5
Published
2025-10-01 07:42
Modified
2025-10-01 07:42
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mm/slub: avoid accessing metadata when pointer is invalid in object_err()
object_err() reports details of an object for further debugging, such as
the freelist pointer, redzone, etc. However, if the pointer is invalid,
attempting to access object metadata can lead to a crash since it does
not point to a valid object.
One known path to the crash is when alloc_consistency_checks()
determines the pointer to the allocated object is invalid because of a
freelist corruption, and calls object_err() to report it. The debug code
should report and handle the corruption gracefully and not crash in the
process.
In case the pointer is NULL or check_valid_pointer() returns false for
the pointer, only print the pointer value and skip accessing metadata.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 81819f0fc8285a2a5a921c019e3e3d7b6169d225 Version: 81819f0fc8285a2a5a921c019e3e3d7b6169d225 Version: 81819f0fc8285a2a5a921c019e3e3d7b6169d225 Version: 81819f0fc8285a2a5a921c019e3e3d7b6169d225 Version: 81819f0fc8285a2a5a921c019e3e3d7b6169d225 Version: 81819f0fc8285a2a5a921c019e3e3d7b6169d225 Version: 81819f0fc8285a2a5a921c019e3e3d7b6169d225 Version: 81819f0fc8285a2a5a921c019e3e3d7b6169d225 |
||
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"mm/slub.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "872f2c34ff232af1e65ad2df86d61163c8ffad42",
"status": "affected",
"version": "81819f0fc8285a2a5a921c019e3e3d7b6169d225",
"versionType": "git"
},
{
"lessThan": "f66012909e7bf383fcdc5850709ed5716073fdc4",
"status": "affected",
"version": "81819f0fc8285a2a5a921c019e3e3d7b6169d225",
"versionType": "git"
},
{
"lessThan": "7e287256904ee796c9477e3ec92b07f236481ef3",
"status": "affected",
"version": "81819f0fc8285a2a5a921c019e3e3d7b6169d225",
"versionType": "git"
},
{
"lessThan": "1f0797f17927b5cad0fb7eced422f9a7c30a3191",
"status": "affected",
"version": "81819f0fc8285a2a5a921c019e3e3d7b6169d225",
"versionType": "git"
},
{
"lessThan": "0ef7058b4dc6fcef622ac23b45225db57f17b83f",
"status": "affected",
"version": "81819f0fc8285a2a5a921c019e3e3d7b6169d225",
"versionType": "git"
},
{
"lessThan": "dda6ec365ab04067adae40ef17015db447e90736",
"status": "affected",
"version": "81819f0fc8285a2a5a921c019e3e3d7b6169d225",
"versionType": "git"
},
{
"lessThan": "3baa1da473e6e50281324ff1d332d1a07a3bb02e",
"status": "affected",
"version": "81819f0fc8285a2a5a921c019e3e3d7b6169d225",
"versionType": "git"
},
{
"lessThan": "b4efccec8d06ceb10a7d34d7b1c449c569d53770",
"status": "affected",
"version": "81819f0fc8285a2a5a921c019e3e3d7b6169d225",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"mm/slub.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.22"
},
{
"lessThan": "2.6.22",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.299",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.243",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.192",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.151",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.105",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.46",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.16.*",
"status": "unaffected",
"version": "6.16.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.17",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.299",
"versionStartIncluding": "2.6.22",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.243",
"versionStartIncluding": "2.6.22",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.192",
"versionStartIncluding": "2.6.22",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.151",
"versionStartIncluding": "2.6.22",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.105",
"versionStartIncluding": "2.6.22",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.46",
"versionStartIncluding": "2.6.22",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.16.6",
"versionStartIncluding": "2.6.22",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.17",
"versionStartIncluding": "2.6.22",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/slub: avoid accessing metadata when pointer is invalid in object_err()\n\nobject_err() reports details of an object for further debugging, such as\nthe freelist pointer, redzone, etc. However, if the pointer is invalid,\nattempting to access object metadata can lead to a crash since it does\nnot point to a valid object.\n\nOne known path to the crash is when alloc_consistency_checks()\ndetermines the pointer to the allocated object is invalid because of a\nfreelist corruption, and calls object_err() to report it. The debug code\nshould report and handle the corruption gracefully and not crash in the\nprocess.\n\nIn case the pointer is NULL or check_valid_pointer() returns false for\nthe pointer, only print the pointer value and skip accessing metadata."
}
],
"providerMetadata": {
"dateUpdated": "2025-10-01T07:42:49.415Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/872f2c34ff232af1e65ad2df86d61163c8ffad42"
},
{
"url": "https://git.kernel.org/stable/c/f66012909e7bf383fcdc5850709ed5716073fdc4"
},
{
"url": "https://git.kernel.org/stable/c/7e287256904ee796c9477e3ec92b07f236481ef3"
},
{
"url": "https://git.kernel.org/stable/c/1f0797f17927b5cad0fb7eced422f9a7c30a3191"
},
{
"url": "https://git.kernel.org/stable/c/0ef7058b4dc6fcef622ac23b45225db57f17b83f"
},
{
"url": "https://git.kernel.org/stable/c/dda6ec365ab04067adae40ef17015db447e90736"
},
{
"url": "https://git.kernel.org/stable/c/3baa1da473e6e50281324ff1d332d1a07a3bb02e"
},
{
"url": "https://git.kernel.org/stable/c/b4efccec8d06ceb10a7d34d7b1c449c569d53770"
}
],
"title": "mm/slub: avoid accessing metadata when pointer is invalid in object_err()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-39902",
"datePublished": "2025-10-01T07:42:49.415Z",
"dateReserved": "2025-04-16T07:20:57.146Z",
"dateUpdated": "2025-10-01T07:42:49.415Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-39902\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-10-01T08:15:32.993\",\"lastModified\":\"2025-10-02T19:12:17.160\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmm/slub: avoid accessing metadata when pointer is invalid in object_err()\\n\\nobject_err() reports details of an object for further debugging, such as\\nthe freelist pointer, redzone, etc. However, if the pointer is invalid,\\nattempting to access object metadata can lead to a crash since it does\\nnot point to a valid object.\\n\\nOne known path to the crash is when alloc_consistency_checks()\\ndetermines the pointer to the allocated object is invalid because of a\\nfreelist corruption, and calls object_err() to report it. The debug code\\nshould report and handle the corruption gracefully and not crash in the\\nprocess.\\n\\nIn case the pointer is NULL or check_valid_pointer() returns false for\\nthe pointer, only print the pointer value and skip accessing metadata.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0ef7058b4dc6fcef622ac23b45225db57f17b83f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/1f0797f17927b5cad0fb7eced422f9a7c30a3191\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3baa1da473e6e50281324ff1d332d1a07a3bb02e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7e287256904ee796c9477e3ec92b07f236481ef3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/872f2c34ff232af1e65ad2df86d61163c8ffad42\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b4efccec8d06ceb10a7d34d7b1c449c569d53770\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/dda6ec365ab04067adae40ef17015db447e90736\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f66012909e7bf383fcdc5850709ed5716073fdc4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…