GHSA-hh69-ghmv-95j7HighCVSS 7.1
In the Linux kernel, the following vulnerability has been resolved: dm-pcache: clamp the tail...
🔗 CVE IDs covered (1)
📋 Description
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.
🔗 References (5)
- https://nvd.nist.gov/vuln/detail/CVE-2026-80958
- https://git.kernel.org/stable/c/1ab55354368d071ebaee4d8c82313955eab65a04
- https://git.kernel.org/stable/c/2cd9776fe3f2d88ec22c36d3c8ba09fbf9d5500c
- https://git.kernel.org/stable/c/becf07e2b0053027495ecd671b1f82fb2e615f68
- https://github.com/advisories/GHSA-hh69-ghmv-95j7