CVE-2026-80958

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-80958

Key Details

CVE	CVE-2026-80958
CVSS Score / Version	7.1 (High) / CVSS v3.1
Updated	2026-10-19
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is none; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

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. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-80958
CVE	https://www.cve.org/CVERecord?id=CVE-2026-80958

Source

Reference

NVD

CVE