CVE-2024-27050 (GCVE-0-2024-27050)
Vulnerability from cvelistv5
Published
2024-05-01 12:54
Modified
2026-08-05 11:29
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 13ce2daa259a3bfbc9a5aeeee8b9a87058703731
Version: 13ce2daa259a3bfbc9a5aeeee8b9a87058703731
Version: 13ce2daa259a3bfbc9a5aeeee8b9a87058703731
Version: 13ce2daa259a3bfbc9a5aeeee8b9a87058703731
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