Vulnerability CVE-2024-38612
Published: 2024-06-19

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

ipv6: sr: fix invalid unregister error path

The error path of seg6_init() is wrong in case CONFIG_IPV6_SEG6_LWTUNNEL
is not defined. In that case if seg6_hmac_init() fails, the
genl_unregister_family() isn't called.

This issue exist since commit 46738b1317e1 ("ipv6: sr: add option to control
lwtunnel support"), and commit 5559cea2d5aa ("ipv6: sr: fix possible
use-after-free and null-ptr-deref") replaced unregister_pernet_subsys()
with genl_unregister_family() in this error path.

 References:
https://git.kernel.org/stable/c/10610575a3ac2a702bf5c57aa931beaf847949c7
https://git.kernel.org/stable/c/646cd236c55e2cb5f146fc41bbe4034c4af5b2a4
https://git.kernel.org/stable/c/00e6335329f23ac6cf3105931691674e28bc598c
https://git.kernel.org/stable/c/1a63730fb315bb1bab97edd69ff58ad45e04bb01
https://git.kernel.org/stable/c/e77a3ec7ada84543e75722a1283785a6544de925
https://git.kernel.org/stable/c/3398a40dccb88d3a7eef378247a023a78472db66
https://git.kernel.org/stable/c/85a70ff1e572160f1eeb096ed48d09a1c9d4d89a
https://git.kernel.org/stable/c/c04d6a914e890ccea4a9d11233009a2ee7978bf4
https://git.kernel.org/stable/c/160e9d2752181fcf18c662e74022d77d3164cd45
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