CVE-2026-98901
ksmbd: fix lease break and ack state handling
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix lease break and ack state handling Do not skip valid lease states containing WRITE_CACHING when breaking level-II/read leases for writes and truncates. Handle lease break acknowledgments according to the SMB2 rule that the acknowledged state must be a subset of the server's break target. Apply the acknowledged state directly and keep the break pending on failed ACKs.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 23, 2026 |
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Affected Versions
Linux / Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 17699905a381621c1cee5b6528feb05acedc86a4 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3251ea36df5eef58aa207fbee48849d89b922ea6 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < fba4653a0b4dc2f6d42600abe21fb326292f70ff 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5015191096db311759fef98769270336cd8b1324 0 < 6.6.158 0 < 6.12.111 0 < 6.18.53
Linux / Linux
All versions affected References
git.kernel.org: https://git.kernel.org/stable/c/17699905a381621c1cee5b6528feb05acedc86a4 git.kernel.org: https://git.kernel.org/stable/c/3251ea36df5eef58aa207fbee48849d89b922ea6 git.kernel.org: https://git.kernel.org/stable/c/fba4653a0b4dc2f6d42600abe21fb326292f70ff git.kernel.org: https://git.kernel.org/stable/c/5015191096db311759fef98769270336cd8b1324