ipv6: fix possible UAF in ip6_finish_output2()
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.1epss 0.7%
exploitation probability
0.7%top 50% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
ipv6: fix possible UAF in ip6_finish_output2()
If skb_expand_head() returns NULL, skb has been freed
and associated dst/idev could also have been freed.
We need to hold rcu_read_lock() to make sure the dst and
associated idev are alive.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/3574d28caf9a09756ae87ad1ea096c6f47b6101ehttps://git.kernel.org/stable/c/56efc253196751ece1fc535a5b582be127b0578ahttps://git.kernel.org/stable/c/6ab6bf731354a6fdbaa617d1ec194960db61cf3bhttps://git.kernel.org/stable/c/da273b377ae0d9bd255281ed3c2adb228321687bhttps://git.kernel.org/stable/c/e891b36de161fcd96f12ff83667473e5067b9037https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html