fs/ntfs3: Initialize new folios before use

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Summary

CVECVE-2025-71311
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-27 14:16:43 UTC
Updated2026-05-27 14:48:31 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Initialize new folios before use KMSAN reports an uninitialized value in longest_match_std(), invoked from ntfs_compress_write(). When new folios are allocated without being marked uptodate and ni_read_frame() is skipped because the caller expects the frame to be completely overwritten, some reserved folios may remain only partially filled, leaving the rest memory uninitialized.

Risk And Classification

EPSS: 0.000180000 probability, percentile 0.048460000 (date 2026-06-01)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 dd6c81527d097b3b0bf5a15c2fdc9657d045144c git Not specified
CNA Linux Linux affected 584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 5a30cc03bde169ad558695b26da6ea7e55f6194a git Not specified
CNA Linux Linux affected 584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 41d79f8e2a36622d148719bf7c18b46ac1264284 git Not specified
CNA Linux Linux affected 584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 f223ebffa185cc8da934333c5a31ff2d4f992dc9 git Not specified
CNA Linux Linux affected 6.11 Not specified
CNA Linux Linux unaffected 6.11 semver Not specified
CNA Linux Linux unaffected 6.12.75 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.14 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.4 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/41d79f8e2a36622d148719bf7c18b46ac1264284 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/f223ebffa185cc8da934333c5a31ff2d4f992dc9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/dd6c81527d097b3b0bf5a15c2fdc9657d045144c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/5a30cc03bde169ad558695b26da6ea7e55f6194a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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