ext4: fix fast commit wait/wake bit mapping on 64-bit

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-74358
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 06:22:37 UTC
Updated2026-08-15 06:22:37 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: ext4: fix fast commit wait/wake bit mapping on 64-bit On 64-bit, ext4 dynamic inode states live in the upper half of i_flags, and ext4_test_inode_state() applies the corresponding +32 offset. The fast-commit wait and wake paths open-coded the wait key with the raw EXT4_STATE_* value. Add small helpers for the state wait word and bit, and use them for the FC_COMMITTING and FC_FLUSHING_DATA waits so the wait key follows the same mapping as the state helpers.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 857d32f2618166765ce9306a246d0745afc76859 e82d515092a0cf2bca92f399d5c330c324879cea git Not specified
CNA Linux Linux affected 857d32f2618166765ce9306a246d0745afc76859 d06df6e447a8510f86db44b2522d5375362a9499 git Not specified
CNA Linux Linux affected 857d32f2618166765ce9306a246d0745afc76859 8b3bc93fee6771775243665a0cf31857d6659775 git Not specified
CNA Linux Linux affected 6.16 Not specified
CNA Linux Linux unaffected 6.16 semver Not specified
CNA Linux Linux unaffected 6.18.40 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/8b3bc93fee6771775243665a0cf31857d6659775 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d06df6e447a8510f86db44b2522d5375362a9499 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e82d515092a0cf2bca92f399d5c330c324879cea 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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