High 8.2Published May 27, 2026

CVE-2025-71311fs/ntfs3: Initialize new folios before use

Updated under an hour ago (Oct 28, 2026, 7:40 AM ET)

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Exploited in the last 30 days

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.

CVSS: 8.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 before dd6c81527d097b3b0bf5a15c2fdc9657d045144c; 584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 builds before 5a30cc03bde169ad558695b26da6ea7e55f6194a; 584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 builds before 41d79f8e2a36622d148719bf7c18b46ac1264284; from 584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2 before f223ebffa185cc8da934333c5a31ff2d4f992dc9	CNA record
linux linux_kernel linux:linux_kernel	from 6.11 before 6.12.75; from 6.13 before 6.18.14; from 6.19 before 6.19.4	NVD

References

References

https://git.kernel.org/stable/c/dd6c81527d097b3b0bf5a15c2fdc9657d045144c	patch
https://git.kernel.org/stable/c/5a30cc03bde169ad558695b26da6ea7e55f6194a	patch
https://git.kernel.org/stable/c/41d79f8e2a36622d148719bf7c18b46ac1264284	patch
https://git.kernel.org/stable/c/f223ebffa185cc8da934333c5a31ff2d4f992dc9	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.