cachefiles: Fix error return when vfs_mkdir() fails

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-64040
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-19 16:17:44 UTC
Updated2026-07-19 16:17:44 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: cachefiles: Fix error return when vfs_mkdir() fails When vfs_mkdir() fails, the error code is not extracted from the returned error pointer. This causes mkdir_error to be reached with ret=0, which leads to returning ERR_PTR(0) (NULL) instead of a proper error pointer. Fix this by extracting the error code from the error pointer when vfs_mkdir() fails.

Risk And Classification

EPSS: 0.001890000 probability, percentile 0.087850000 (date 2026-07-20)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 406fad7698f5bf21ab6b5ca195bf4b9e0b3990ed 0940108d27c6995e02819ff832be11892f0b208b git Not specified
CNA Linux Linux affected 406fad7698f5bf21ab6b5ca195bf4b9e0b3990ed 8a220d1c312c66194f4a33dd52d1fba42bc2b341 git Not specified
CNA Linux Linux affected 6.15 Not specified
CNA Linux Linux unaffected 6.15 semver Not specified
CNA Linux Linux unaffected 7.0.11 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/0940108d27c6995e02819ff832be11892f0b208b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8a220d1c312c66194f4a33dd52d1fba42bc2b341 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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