libbpf: Use OPTS_SET() macro in bpf_xdp_query()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2024-27050
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-05-01 13:15:50 UTC
Updated2026-08-04 11:17:37 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from ADP

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-787 | CWE-787 CWE-787 Out-of-bounds Write

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1CNADECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 13ce2daa259a3bfbc9a5aeeee8b9a87058703731 fa5bef5e80c6a3321b2b1a7070436f3bc5daf07c git Not specified
CNA Linux Linux affected 13ce2daa259a3bfbc9a5aeeee8b9a87058703731 682ddd62abd4bdcee7584246903e7a2df005fe0d git Not specified
CNA Linux Linux affected 13ce2daa259a3bfbc9a5aeeee8b9a87058703731 cd3be9843247edb8fc6fcd8d8237cbce2bc19f5e git Not specified
CNA Linux Linux affected 13ce2daa259a3bfbc9a5aeeee8b9a87058703731 92a871ab9fa59a74d013bc04f321026a057618e7 git Not specified
CNA Linux Linux affected 6.6 Not specified
CNA Linux Linux unaffected 6.6 semver Not specified
CNA Linux Linux unaffected 6.6.23 6.6.* semver Not specified
CNA Linux Linux unaffected 6.7.11 6.7.* semver Not specified
CNA Linux Linux unaffected 6.8.2 6.8.* semver Not specified
CNA Linux Linux unaffected 6.9 * original_commit_for_fix Not specified
ADP Linux Acrn unaffected 6.8.2 Not specified
ADP Linux Linux Kernel unaffected 6.7.11 Not specified
ADP Linux Linux Kernel unaffected 6.6.23 Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/fa5bef5e80c6a3321b2b1a7070436f3bc5daf07c af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/92a871ab9fa59a74d013bc04f321026a057618e7 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/682ddd62abd4bdcee7584246903e7a2df005fe0d af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/cd3be9843247edb8fc6fcd8d8237cbce2bc19f5e af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
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