CVE-2024-27050

In the Linux kernel, the following vulnerability has been resolved: libbpf: Use OPTS_SET() macro in bpf_xdp_query() When the feature_flags and xdp_zc_max_segs fields were added to the libbpf bpf_xdp_query_opts, the code writing them did not use the OPTS_SET() macro. This causes libbpf to write to those fields unconditionally, which means that programs compiled against an older version of libbpf (with a smaller size of the bpf_xdp_query_opts struct) will have its stack corrupted by libbpf writing out of bounds. The patch adding the feature_flags field has an early bail out if the feature_flags field is not part of the opts struct (via the OPTS_HAS) macro, but the patch adding xdp_zc_max_segs does not. For consistency, this fix just changes the assignments to both fields to use the OPTS_SET() macro.

The following products are affected by CVE-2024-27050 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2024-27050.

URL	Resource
https://git.kernel.org/stable/c/682ddd62abd4bdcee7584246903e7a2df005fe0d
https://git.kernel.org/stable/c/92a871ab9fa59a74d013bc04f321026a057618e7
https://git.kernel.org/stable/c/cd3be9843247edb8fc6fcd8d8237cbce2bc19f5e
https://git.kernel.org/stable/c/fa5bef5e80c6a3321b2b1a7070436f3bc5daf07c
https://lore.kernel.org/linux-cve-announce/2024050114-CVE-2024-27050-b829@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2024-27050
https://www.cve.org/CVERecord?id=CVE-2024-27050