High
neighbour: use RCU protection in __neigh_notify()
In the Linux kernel, the following vulnerability has been resolved: neighbour: use RCU protection in __neigh_notify() __neigh_notify() can be called without RTNL or RCU protection. Use RCU protection to avoid potential UAF.
Announced Group revision 1
Original source ↗CVE-2025-21763
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2025-21763
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "426b5303eb435d98b9bee37a807be386bc2b3320",
"lessThan": "e1aed6be381bcd7f46d4ca9d7ef0f5f3d6a1be32",
"versionType": "git"
},
{
"status": "affected",
"version": "426b5303eb435d98b9bee37a807be386bc2b3320",
"lessThan": "8666e9aab801328c1408a19fbf4070609dc0695a",
"versionType": "git"
},
{
"status": "affected",
"version": "426b5303eb435d98b9bee37a807be386bc2b3320",
"lessThan": "40d8f2f2a373b6c294ffac394d2bb814b572ead1",
"versionType": "git"
},
{
"status": "affected",
"version": "426b5303eb435d98b9bee37a807be386bc2b3320",
"lessThan": "784eb2376270e086f7db136d154b8404edacf97b",
"versionType": "git"
},
{
"status": "affected",
"version": "426b5303eb435d98b9bee37a807be386bc2b3320",
"lessThan": "1cbb2aa90cd3fba15ad7efb5cdda28f3d1082379",
"versionType": "git"
},
{
"status": "affected",
"version": "426b5303eb435d98b9bee37a807be386bc2b3320",
"lessThan": "cdd5c2a12ddad8a77ce1838ff9f29aa587de82df",
"versionType": "git"
},
{
"status": "affected",
"version": "426b5303eb435d98b9bee37a807be386bc2b3320",
"lessThan": "559307d25235e24b5424778c7332451b6c741159",
"versionType": "git"
},
{
"status": "affected",
"version": "426b5303eb435d98b9bee37a807be386bc2b3320",
"lessThan": "becbd5850c03ed33b232083dd66c6e38c0c0e569",
"versionType": "git"
}
],
"programFiles": [
"net/core/neighbour.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.25"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.25",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.4.291",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.235",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.179",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.129",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.79",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.16",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.13.4",
"versionType": "semver",
"lessThanOrEqual": "6.13.*"
},
{
"status": "unaffected",
"version": "6.14",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/core/neighbour.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-21763
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #26937 · Revision 1
- Added to Heist Feed
- Publisher date