High
ipv6: use RCU in ip6_output()
In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU in ip6_output() Use RCU in ip6_output() in order to use dst_dev_rcu() to prevent possible UAF. We can remove rcu_read_lock()/rcu_read_unlock() pairs from ip6_finish_output2().
Announced Source revision 1
Original source ↗CVE-2025-40158
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-2025-40158
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": "4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36",
"lessThan": "423895685f367b5a0a956bd14b02df0192bded4c",
"versionType": "git"
},
{
"status": "affected",
"version": "4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36",
"lessThan": "92803b826e40e49a5e8a6e208f4b4574e9d19426",
"versionType": "git"
},
{
"status": "affected",
"version": "4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36",
"lessThan": "0393f85c3241c19ba8550f04a812e7d19f6b3082",
"versionType": "git"
},
{
"status": "affected",
"version": "4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36",
"lessThan": "11709573cc4e48dc34c80fc7ab9ce5b159e29695",
"versionType": "git"
}
],
"programFiles": [
"net/ipv6/ip6_output.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.13"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.13",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.113",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.17.3",
"versionType": "semver",
"lessThanOrEqual": "6.17.*"
},
{
"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/ipv6/ip6_output.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-40158
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #46045 · Revision 1
- Added to Heist Feed
- Publisher date