CVE-2024-50123 Information

Description

In the Linux kernel the following vulnerability has been resolved:

bpf: Add the missing BPF_LINK_TYPE invocation for sockmap

There is an out-of-bounds read in bpf_link_show_fdinfo() for the sockmap link fd. Fix it by adding the missing BPF_LINK_TYPE invocation for sockmap link

Also add comments for bpf_link_type to prevent missing updates in the future.

Reference

https://git.kernel.org/stable/c/6d79f12c0ce2bc8ff5f109093df1734bd6450615 https://git.kernel.org/stable/c/c2f803052bc7a7feb2e03befccc8e49b6ff1f5f5