{"id":"CVE-2026-90069","revision":"7d5f45b1120044c7bb0c67ce486356ef","records":[{"revision":"7d5f45b1120044c7bb0c67ce486356ef","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90069","aliases":[],"title":"crypto: acomp - allocate async request context when cloning","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.","state":0,"publishedAt":"2026-09-17T16:05:50.894+00:00","modifiedAt":"2026-10-19T08:57:26.441+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"crypto/acompress.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"097c432caaa6d91f87732fe991cb08139e31101a\",\n                            \"lessThan\": \"d48197cbd5d3476c7deea644972e9ec510865ec2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"097c432caaa6d91f87732fe991cb08139e31101a\",\n                            \"lessThan\": \"889fa17a0af09ff93a9166abc82ee7a654faa49b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"097c432caaa6d91f87732fe991cb08139e31101a\",\n                            \"lessThan\": \"ee440d4fc0d2f15894ab1f64c474a3adbc858880\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"crypto/acompress.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.16\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.16\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.52\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.6\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 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,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/d48197cbd5d3476c7deea644972e9ec510865ec2","https://git.kernel.org/stable/c/889fa17a0af09ff93a9166abc82ee7a654faa49b","https://git.kernel.org/stable/c/ee440d4fc0d2f15894ab1f64c474a3adbc858880"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90069","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90069","identifiers":["CVE-2026-90069"]},"retained":false,"historicalAffected":[]}],"coverage":[]}