CVE-2025-22005 | THREATINT

Description

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.

PUBLISHED Reserved 2024-12-29 | Published 2025-04-03 | Updated 2025-11-03 | Assigner Linux

Product status

Default status

unaffected

7dd73168e273938b9e9bb42ca51b0c27d807992b (git) before 16267a5036173d0173377545b4b6021b081d0933

affected

7dd73168e273938b9e9bb42ca51b0c27d807992b (git) before 1bd12dfc058e1e68759d313d7727d68dbc1b8964

affected

7dd73168e273938b9e9bb42ca51b0c27d807992b (git) before 596a883c4ce2d2e9c175f25b98fed3a1f33fea38

affected

7dd73168e273938b9e9bb42ca51b0c27d807992b (git) before 77c41cdbe6bce476e08d3251c0d501feaf10a9f3

affected

7dd73168e273938b9e9bb42ca51b0c27d807992b (git) before 119dcafe36795a15ae53351cbbd6177aaf94ffef

affected

7dd73168e273938b9e9bb42ca51b0c27d807992b (git) before 29d91820184d5cbc70f3246d4911d96eaeb930d6

affected

7dd73168e273938b9e9bb42ca51b0c27d807992b (git) before d3d5b4b5ae263c3225db363ba08b937e2e2b0380

affected

7dd73168e273938b9e9bb42ca51b0c27d807992b (git) before 9740890ee20e01f99ff1dde84c63dcf089fabb98

affected

Default status

affected

5.3

affected

Any version before 5.3

unaffected

5.4.292 (semver)

unaffected

5.10.236 (semver)

unaffected

5.15.180 (semver)

unaffected

6.1.132 (semver)

unaffected

6.6.85 (semver)

unaffected

6.12.21 (semver)

unaffected

6.13.9 (semver)

unaffected

6.14 (original_commit_for_fix)

unaffected

References

lists.debian.org/debian-lts-announce/2025/05/msg00045.html

lists.debian.org/debian-lts-announce/2025/05/msg00030.html

git.kernel.org/...c/16267a5036173d0173377545b4b6021b081d0933

git.kernel.org/...c/1bd12dfc058e1e68759d313d7727d68dbc1b8964

git.kernel.org/...c/596a883c4ce2d2e9c175f25b98fed3a1f33fea38

git.kernel.org/...c/77c41cdbe6bce476e08d3251c0d501feaf10a9f3

git.kernel.org/...c/119dcafe36795a15ae53351cbbd6177aaf94ffef

git.kernel.org/...c/29d91820184d5cbc70f3246d4911d96eaeb930d6

git.kernel.org/...c/d3d5b4b5ae263c3225db363ba08b937e2e2b0380

git.kernel.org/...c/9740890ee20e01f99ff1dde84c63dcf089fabb98

cve.org (CVE-2025-22005)

nvd.nist.gov (CVE-2025-22005)

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