afs: Fix afs_edit_dir_remove() to get, not find, block 0

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Summary

CVECVE-2026-68168
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-10 13:20:03 UTC
Updated2026-08-10 13:20:03 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: afs: Fix afs_edit_dir_remove() to get, not find, block 0 Fix afs_edit_dir_remove() to use afs_dir_get_block() to get block 0 rather than afs_dir_find_block() as the latter caches the found block in the afs_dir_iter and may[*] switch out the page it's on if another afs_dir_find_block() is done. This parallels what afs_edit_dir_add() does. [*] There's more than one block per page.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected a5b5beebcf96d5e8a2fc79856c2ac1e93f82478e f2b293359924117736218701ebd8b40618d73e6f git Not specified
CNA Linux Linux affected a5b5beebcf96d5e8a2fc79856c2ac1e93f82478e bfdfc7782ada6f3a4df7182889b66039f8e4131c git Not specified
CNA Linux Linux affected a5b5beebcf96d5e8a2fc79856c2ac1e93f82478e 62d9853aa4ce6e9797b6949804891be14b219752 git Not specified
CNA Linux Linux affected 6.14 Not specified
CNA Linux Linux unaffected 6.14 semver Not specified
CNA Linux Linux unaffected 6.18.42 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.6 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc5 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/62d9853aa4ce6e9797b6949804891be14b219752 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/f2b293359924117736218701ebd8b40618d73e6f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/bfdfc7782ada6f3a4df7182889b66039f8e4131c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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