CVE-2026-90161

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-90161

Key Details

CVE	CVE-2026-90161
CVSS Score / Version	7.1 (High) / CVSS v3.1
Updated	2026-10-19
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is none; user interaction is required; 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:

erofs: fix interlaced ztailpacking pclusters

On-disk sizes of interlaced pclusters should be block-aligned, and

ztailpacking interlaced pclusters should be invalid at all.

Currently, mkfs.erofs won't generate any interlaced pcluster with

ztailpacking enabled, so this doesn't affect any existing valid

filesystems.

However, crafted images can contain invalid interlaced ztailpacking

pclusters, resulting in an out-of-bounds read from a kmap'd page and

copying irrelevant kernel memory into userspace-visible page cache. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-90161
CVE	https://www.cve.org/CVERecord?id=CVE-2026-90161

Source

Reference

NVD

CVE