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Description

In 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.

PUBLISHED Reserved 2026-05-27 | Published 2026-05-27 | Updated 2026-05-27 | Assigner Linux

Product status

Default status
unaffected

584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 (git) before dd6c81527d097b3b0bf5a15c2fdc9657d045144c
affected

584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 (git) before 5a30cc03bde169ad558695b26da6ea7e55f6194a
affected

584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 (git) before 41d79f8e2a36622d148719bf7c18b46ac1264284
affected

584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 (git) before f223ebffa185cc8da934333c5a31ff2d4f992dc9
affected

Default status
affected

6.11
affected

Any version before 6.11
unaffected

6.12.75 (semver)
unaffected

6.18.14 (semver)
unaffected

6.19.4 (semver)
unaffected

7.0 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/dd6c81527d097b3b0bf5a15c2fdc9657d045144c

git.kernel.org/...c/5a30cc03bde169ad558695b26da6ea7e55f6194a

git.kernel.org/...c/41d79f8e2a36622d148719bf7c18b46ac1264284

git.kernel.org/...c/f223ebffa185cc8da934333c5a31ff2d4f992dc9

cve.org (CVE-2025-71311)

nvd.nist.gov (CVE-2025-71311)

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