CVE-2026-80958
dm-pcache: clamp the tail kset read to the segment data region
CVSS Score
7.1
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: dm-pcache: clamp the tail kset read to the segment data region The tail-kset read in cache_replay(), the writeback worker and the GC worker bounds its length by PCACHE_SEG_SIZE - seg_off, the raw segment size rather than the data region. A tail near the segment end reads past the segment data into the following control area. Clamp the read to cache_seg_remain(), the data region.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 11, 2026 |
| Last Updated | Sep 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 < 2cd9776fe3f2d88ec22c36d3c8ba09fbf9d5500c 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 < 1ab55354368d071ebaee4d8c82313955eab65a04 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 < becf07e2b0053027495ecd671b1f82fb2e615f68
Linux / Linux
6.18