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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
7dd73168e273938b9e9bb42ca51b0c27d807992b to < 16267a5036173d0173377545b4b6021b081d0933affected7dd73168e273938b9e9bb42ca51b0c27d807992b to < 1bd12dfc058e1e68759d313d7727d68dbc1b8964affected7dd73168e273938b9e9bb42ca51b0c27d807992b to < 596a883c4ce2d2e9c175f25b98fed3a1f33fea38affected7dd73168e273938b9e9bb42ca51b0c27d807992b to < 77c41cdbe6bce476e08d3251c0d501feaf10a9f3affected7dd73168e273938b9e9bb42ca51b0c27d807992b to < 119dcafe36795a15ae53351cbbd6177aaf94ffefaffected7dd73168e273938b9e9bb42ca51b0c27d807992b to < 29d91820184d5cbc70f3246d4911d96eaeb930d6affected7dd73168e273938b9e9bb42ca51b0c27d807992b to < d3d5b4b5ae263c3225db363ba08b937e2e2b0380affected7dd73168e273938b9e9bb42ca51b0c27d807992b to < 9740890ee20e01f99ff1dde84c63dcf089fabb98affected
Linux Linux
Default version status: affected
5.3affected0 to < 5.3unaffected5.4.292 to ≤ 5.4.*unaffected5.10.236 to ≤ 5.10.*unaffected5.15.180 to ≤ 5.15.*unaffected6.1.132 to ≤ 6.1.*unaffected6.6.85 to ≤ 6.6.*unaffected6.12.21 to ≤ 6.12.*unaffected6.13.9 to ≤ 6.13.*unaffected6.14 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/16267a5036173d0173377545b4b6021b081d0933 ↗
- https://git.kernel.org/stable/c/1bd12dfc058e1e68759d313d7727d68dbc1b8964 ↗
- https://git.kernel.org/stable/c/596a883c4ce2d2e9c175f25b98fed3a1f33fea38 ↗
- https://git.kernel.org/stable/c/77c41cdbe6bce476e08d3251c0d501feaf10a9f3 ↗
- https://git.kernel.org/stable/c/119dcafe36795a15ae53351cbbd6177aaf94ffef ↗
- https://git.kernel.org/stable/c/29d91820184d5cbc70f3246d4911d96eaeb930d6 ↗
- https://git.kernel.org/stable/c/d3d5b4b5ae263c3225db363ba08b937e2e2b0380 ↗
- https://git.kernel.org/stable/c/9740890ee20e01f99ff1dde84c63dcf089fabb98 ↗
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html ↗
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html ↗