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.
from 4342306f0f0d5ff4315a204d315c1b51b914fca5 before afb144bc8e920db43a23e996eb0a6f9bdea84341; from 4342306f0f0d5ff4315a204d315c1b51b914fca5 before c70b3abfd530c7f574bc25a5f84707e6fdf0def8; 4342306f0f0d5ff4315a204d315c1b51b914fca5 builds before 8bf729b96303bb862d7c6dc05edcf51274ae04cf; 4342306f0f0d5ff4315a204d315c1b51b914fca5 builds before 7ce8f2028dfccb2161b905cf8ab85cdd9e93909c; 4342306f0f0d5ff4315a204d315c1b51b914fca5 builds before 46f2a881e5a7311d41551edb3915e4d4e8802341; 4342306f0f0d5ff4315a204d315c1b51b914fca5 builds before 81ffe9a265df3e41534726b852ab08792e3d374d; 4342306f0f0d5ff4315a204d315c1b51b914fca5 builds before 73e6b9dacf72a1e7a4265eacca46f8f33e0997d6
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.
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