bpf: Fix exclusive map memory leak

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-68355
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-12-24 11:15:58 UTC
Updated2026-10-13 11:10:00 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: bpf: Fix exclusive map memory leak When excl_prog_hash is 0 and excl_prog_hash_size is non-zero, the map also needs to be freed. Otherwise, the map memory will not be reclaimed, just like the memory leak problem reported by syzbot [1]. syzbot reported: BUG: memory leak backtrace (crc 7b9fb9b4): map_create+0x322/0x11e0 kernel/bpf/syscall.c:1512 __sys_bpf+0x3556/0x3610 kernel/bpf/syscall.c:6131

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected baefdbdf6812e120c9fba9cfb101d3656f478026 f0022551745d72fc0e7bc8601234d690dee2178d git Not specified
CNA Linux Linux affected baefdbdf6812e120c9fba9cfb101d3656f478026 688b745401ab16e2e1a3b504863f0a45fd345638 git Not specified
CNA Linux Linux affected 6.18 Not specified
CNA Linux Linux unaffected 6.18 semver Not specified
CNA Linux Linux unaffected 6.18.2 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/688b745401ab16e2e1a3b504863f0a45fd345638 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/f0022551745d72fc0e7bc8601234d690dee2178d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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