CVE-2026-90069

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-90069

Key Details

CVE	CVE-2026-90069
CVSS Score / Version	7.8 (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:H/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 high; 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:

crypto: acomp - allocate async request context when cloning

ACOMP_REQUEST_ON_STACK() reserves only enough storage for the

synchronous fallback. When an async implementation is selected, callers

clone that stack request before retrying, but acomp_request_clone()

currently copies only the stack-sized object. The clone therefore has no

storage for the async provider request context, and providers such as QAT

write past the allocation through acomp_request_ctx(). KASAN does report

a slab OOB write.

Allocate a zeroed clone large enough for the runtime acomp request size,

copy only the bytes present in the source object, and preserve the

existing fallback-on-allocation-failure behavior. Use the runtime reqsize

because an implementation may adjust it during tfm initialization. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-90069
CVE	https://www.cve.org/CVERecord?id=CVE-2026-90069

Source

Reference

NVD

CVE