5.5

CVE-2025-22005

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.3 < 5.4.292
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.236
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.132
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.85
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.21
Linux ≫ Linux Kernel Version >= 6.13 < 6.13.9
Linux ≫ Linux Kernel Version6.14 Updaterc1
Linux ≫ Linux Kernel Version6.14 Updaterc2
Linux ≫ Linux Kernel Version6.14 Updaterc3
Linux ≫ Linux Kernel Version6.14 Updaterc4
Linux ≫ Linux Kernel Version6.14 Updaterc5
Linux ≫ Linux Kernel Version6.14 Updaterc6
Linux ≫ Linux Kernel Version6.14 Updaterc7
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.19% 0.083
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
134c704f-9b21-4f2e-91b3-4a467353bcc0 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

https://git.kernel.org/stable/c/119dcafe36795a15ae53351cbbd6177aaf94ffef
Patch
https://git.kernel.org/stable/c/29d91820184d5cbc70f3246d4911d96eaeb930d6
Patch
https://git.kernel.org/stable/c/77c41cdbe6bce476e08d3251c0d501feaf10a9f3
Patch
https://git.kernel.org/stable/c/9740890ee20e01f99ff1dde84c63dcf089fabb98
Patch
https://git.kernel.org/stable/c/d3d5b4b5ae263c3225db363ba08b937e2e2b0380
Patch
https://git.kernel.org/stable/c/16267a5036173d0173377545b4b6021b081d0933
Patch
https://git.kernel.org/stable/c/1bd12dfc058e1e68759d313d7727d68dbc1b8964
Patch
https://git.kernel.org/stable/c/596a883c4ce2d2e9c175f25b98fed3a1f33fea38
Patch
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html