{"cve":"CVE-2026-90069","nvd":{"published":"2026-09-17T17:16:55.830","modified":"2026-10-19T09:18:55.470","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: acomp - allocate async request context when cloning\n\nACOMP_REQUEST_ON_STACK() reserves only enough storage for the\nsynchronous fallback. When an async implementation is selected, callers\nclone that stack request before retrying, but acomp_request_clone()\ncurrently copies only the stack-sized object. The clone therefore has no\nstorage for the async provider request context, and providers such as QAT\nwrite past the allocation through acomp_request_ctx(). KASAN does report\na slab OOB write.\n\nAllocate a zeroed clone large enough for the runtime acomp request size,\ncopy only the bytes present in the source object, and preserve the\nexisting fallback-on-allocation-failure behavior. Use the runtime reqsize\nbecause an implementation may adjust it during tfm initialization.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":[],"references":["https://git.kernel.org/stable/c/889fa17a0af09ff93a9166abc82ee7a654faa49b","https://git.kernel.org/stable/c/d48197cbd5d3476c7deea644972e9ec510865ec2","https://git.kernel.org/stable/c/ee440d4fc0d2f15894ab1f64c474a3adbc858880"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:55:23.253742848+00:00"},"epss":{"cve":"CVE-2026-90069","score":0.00173,"percentile":0.06716,"date":"2026-10-26"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}