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
Configurations
Configuration 1 (hide)
|
History
08 Apr 2025, 18:38
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| First Time |
Linux linux Kernel
Linux |
|
| References | () https://git.kernel.org/stable/c/682ddd62abd4bdcee7584246903e7a2df005fe0d - Patch | |
| References | () https://git.kernel.org/stable/c/92a871ab9fa59a74d013bc04f321026a057618e7 - Patch | |
| References | () https://git.kernel.org/stable/c/cd3be9843247edb8fc6fcd8d8237cbce2bc19f5e - Patch | |
| References | () https://git.kernel.org/stable/c/fa5bef5e80c6a3321b2b1a7070436f3bc5daf07c - Patch |
Information
Published : 2024-05-01 13:15
Updated : 2025-04-08 18:38
NVD link : CVE-2024-27050
Mitre link : CVE-2024-27050
CVE.ORG link : CVE-2024-27050
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-787
Out-of-bounds Write