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Description

In the Linux kernel, the following vulnerability has been resolved: ntfs3: fix uninit memory after failed mi_read in mi_format_new Fix a KMSAN un-init bug found by syzkaller. ntfs_get_bh() expects a buffer from sb_getblk(), that buffer may not be uptodate. We do not bring the buffer uptodate before setting it as uptodate. If the buffer were to not be uptodate, it could mean adding a buffer with un-init data to the mi record. Attempting to load that record will trigger KMSAN. Avoid this by setting the buffer as uptodate, if it’s not already, by overwriting it.

PUBLISHED Reserved 2025-12-24 | Published 2025-12-24 | Updated 2025-12-24 | Assigner Linux

Product status

Default status
unaffected

4342306f0f0d5ff4315a204d315c1b51b914fca5 (git) before 7ce8f2028dfccb2161b905cf8ab85cdd9e93909c
affected

4342306f0f0d5ff4315a204d315c1b51b914fca5 (git) before 46f2a881e5a7311d41551edb3915e4d4e8802341
affected

4342306f0f0d5ff4315a204d315c1b51b914fca5 (git) before 81ffe9a265df3e41534726b852ab08792e3d374d
affected

4342306f0f0d5ff4315a204d315c1b51b914fca5 (git) before 73e6b9dacf72a1e7a4265eacca46f8f33e0997d6
affected

Default status
affected

5.15
affected

Any version before 5.15
unaffected

6.12.63 (semver)
unaffected

6.17.13 (semver)
unaffected

6.18.2 (semver)
unaffected

6.19-rc1 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/7ce8f2028dfccb2161b905cf8ab85cdd9e93909c

git.kernel.org/...c/46f2a881e5a7311d41551edb3915e4d4e8802341

git.kernel.org/...c/81ffe9a265df3e41534726b852ab08792e3d374d

git.kernel.org/...c/73e6b9dacf72a1e7a4265eacca46f8f33e0997d6

cve.org (CVE-2025-68728)

nvd.nist.gov (CVE-2025-68728)

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Data based on CVE®. Copyright © 1999-2025, The MITRE Corporation. All rights reserved.