Riskcovery

CVE-2025-68728

ntfs3: fix uninit memory after failed mi_read in mi_format_new

State
Published
Severity
Not scored
Published
Dec 24, 2025
Updated
May 11, 2026
Reserved
Dec 24, 2025

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 4342306f0f0d5ff4315a204d315c1b51b914fca5 to before afb144bc8e920db43a23e996eb0a6f9bdea84341Affected
  • 4342306f0f0d5ff4315a204d315c1b51b914fca5 to before c70b3abfd530c7f574bc25a5f84707e6fdf0def8Affected
  • 4342306f0f0d5ff4315a204d315c1b51b914fca5 to before 8bf729b96303bb862d7c6dc05edcf51274ae04cfAffected
  • 4342306f0f0d5ff4315a204d315c1b51b914fca5 to before 7ce8f2028dfccb2161b905cf8ab85cdd9e93909cAffected
  • 4342306f0f0d5ff4315a204d315c1b51b914fca5 to before 46f2a881e5a7311d41551edb3915e4d4e8802341Affected
  • 4342306f0f0d5ff4315a204d315c1b51b914fca5 to before 81ffe9a265df3e41534726b852ab08792e3d374dAffected
  • 4342306f0f0d5ff4315a204d315c1b51b914fca5 to before 73e6b9dacf72a1e7a4265eacca46f8f33e0997d6Affected
LinuxLinux
  • 5.15Affected
  • before 5.15Not affected
  • 5.15.198 through 5.15.*Not affected
  • 6.1.160 through 6.1.*Not affected
  • 6.6.120 through 6.6.*Not affected
  • 6.12.63 through 6.12.*Not affected
  • 6.17.13 through 6.17.*Not affected
  • 6.18.2 through 6.18.*Not affected
  • 6.19 and laterNot affected

References

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