Vulnerability CVE-2024-36903


Published: 2024-05-30

Description:
In the Linux kernel, the following vulnerability has been resolved:

ipv6: Fix potential uninit-value access in __ip6_make_skb()

As it was done in commit fc1092f51567 ("ipv4: Fix uninit-value access in
__ip_make_skb()") for IPv4, check FLOWI_FLAG_KNOWN_NH on fl6->flowi6_flags
instead of testing HDRINCL on the socket to avoid a race condition which
causes uninit-value access.

 References:
https://git.kernel.org/stable/c/68c8ba16ab712eb709c6bab80ff151079d11d97a
https://git.kernel.org/stable/c/2367bf254f3a27ecc6e229afd7a8b0a1395f7be3
https://git.kernel.org/stable/c/4e13d3a9c25b7080f8a619f961e943fe08c2672c

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