CVE-2024-44986 Information

Description

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.

Reference

https://git.kernel.org/stable/c/e891b36de161fcd96f12ff83667473e5067b9037 https://git.kernel.org/stable/c/3574d28caf9a09756ae87ad1ea096c6f47b6101e https://git.kernel.org/stable/c/6ab6bf731354a6fdbaa617d1ec194960db61cf3b https://git.kernel.org/stable/c/56efc253196751ece1fc535a5b582be127b0578a https://git.kernel.org/stable/c/da273b377ae0d9bd255281ed3c2adb228321687b