CVE-2026-90069
CVE CVE-2026-90069EUVD EUVD-2026-81930Published 2026-09-17T16:05:50.000ZLast changed 2026-09-18T17:52:52.000ZCVSS 7.8
What the advisory describes
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.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux 097c432caaa6d91f87732fe991cb08139e31101a <ee440d4fc0d2f15894ab1f64c474a3adbc858880; patch: 7.3-rc1; 6.16; patch: 7.2.6; patch: 6.18.52; patch: 0; 097c432caaa6d91f87732fe991cb08139e31101a <d48197cbd5d3476c7deea644972e9ec510865ec2; 097c432caaa6d91f87732fe991cb08139e31101a <889fa17a0af09ff93a9166abc82ee7a654faa49b
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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