md/md-llbitmap: raise barrier before state machine transition

Summary

CVECVE-2026-46095
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-27 14:17:31 UTC
Updated2026-05-27 14:48:03 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: md/md-llbitmap: raise barrier before state machine transition Move the barrier raise operation before calling llbitmap_state_machine() in both llbitmap_start_write() and llbitmap_start_discard(). This ensures the barrier is in place before any state transitions occur, preventing potential race conditions where the state machine could complete before the barrier is properly raised.

Risk And Classification

EPSS: 0.000170000 probability, percentile 0.043360000 (date 2026-05-29)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 5ab829f1971dc99f2aac10846c378e67fc875abc 9142f00a9287ca38152717e3e88a033a27774e7f git Not specified
CNA Linux Linux affected 5ab829f1971dc99f2aac10846c378e67fc875abc 9701d51dd378380ba05293fa391e8ba01065ae8d git Not specified
CNA Linux Linux affected 5ab829f1971dc99f2aac10846c378e67fc875abc ef4ca3d4bf09716cff9ba00eb0351deadc8417ab git Not specified
CNA Linux Linux affected 6.18 Not specified
CNA Linux Linux unaffected 6.18 semver Not specified
CNA Linux Linux unaffected 6.18.27 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.4 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/ef4ca3d4bf09716cff9ba00eb0351deadc8417ab 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9142f00a9287ca38152717e3e88a033a27774e7f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9701d51dd378380ba05293fa391e8ba01065ae8d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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