ipv6: Fix memleak of nhc_pcpu_rth_output in fib_check_nh_v6_gw().
In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix memleak of nhc_pcpu_rth_output in fib_check_nh_v6_gw(). fib_check_nh_v6_gw() expects that fib6_nh_init() cleans up everything when it fails. Commit 7dd73168e273 ("ipv6: Always allocate pcpu memory in a fib6_nh") moved fib_nh_common_init() before alloc_percpu_gfp() within fib6_nh_init() but forgot to add cleanup for fib6_nh->nh_common.nhc_pcpu_rth_output in case it fails to allocate fib6_nh->rt6i_pcpu, resulting in memleak. Let's call fib_nh_common_release() and clear nhc_pcpu_rth_output in the error path. Note that we can remove the fib6_nh_release() call in nh_create_ipv6() later in net-next.git.
CVE-2025-22005
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-2025-22005
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": "7dd73168e273938b9e9bb42ca51b0c27d807992b",
"lessThan": "16267a5036173d0173377545b4b6021b081d0933",
"versionType": "git"
},
{
"status": "affected",
"version": "7dd73168e273938b9e9bb42ca51b0c27d807992b",
"lessThan": "1bd12dfc058e1e68759d313d7727d68dbc1b8964",
"versionType": "git"
},
{
"status": "affected",
"version": "7dd73168e273938b9e9bb42ca51b0c27d807992b",
"lessThan": "596a883c4ce2d2e9c175f25b98fed3a1f33fea38",
"versionType": "git"
},
{
"status": "affected",
"version": "7dd73168e273938b9e9bb42ca51b0c27d807992b",
"lessThan": "77c41cdbe6bce476e08d3251c0d501feaf10a9f3",
"versionType": "git"
},
{
"status": "affected",
"version": "7dd73168e273938b9e9bb42ca51b0c27d807992b",
"lessThan": "119dcafe36795a15ae53351cbbd6177aaf94ffef",
"versionType": "git"
},
{
"status": "affected",
"version": "7dd73168e273938b9e9bb42ca51b0c27d807992b",
"lessThan": "29d91820184d5cbc70f3246d4911d96eaeb930d6",
"versionType": "git"
},
{
"status": "affected",
"version": "7dd73168e273938b9e9bb42ca51b0c27d807992b",
"lessThan": "d3d5b4b5ae263c3225db363ba08b937e2e2b0380",
"versionType": "git"
},
{
"status": "affected",
"version": "7dd73168e273938b9e9bb42ca51b0c27d807992b",
"lessThan": "9740890ee20e01f99ff1dde84c63dcf089fabb98",
"versionType": "git"
}
],
"programFiles": [
"net/ipv6/route.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.3"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.3",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.4.292",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.236",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.180",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.132",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.85",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.21",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.13.9",
"versionType": "semver",
"lessThanOrEqual": "6.13.*"
},
{
"status": "unaffected",
"version": "6.14",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/ipv6/route.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-22005
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #26974 · Revision 1
- Added to Heist Feed
- Publisher date