CVE-2026-80958
- Source
- https://cve.org/CVERecord?id=CVE-2026-80958
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80958.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-80958
- Downstream
- Published
- 2026-09-11T19:42:25Z
- Modified
- 2026-09-13T03:46:53Z
- Summary
- dm-pcache: clamp the tail kset read to the segment data region
- Details
-
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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80958.json" }- References
-
- https://git.kernel.org/stable/c/1ab55354368d071ebaee4d8c82313955eab65a04
- https://git.kernel.org/stable/c/2cd9776fe3f2d88ec22c36d3c8ba09fbf9d5500c
- https://git.kernel.org/stable/c/becf07e2b0053027495ecd671b1f82fb2e615f68
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80958.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-80958
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git