{"id":"CVE-2026-99208","revision":null,"records":[{"revision":"afe2715036be47b6bbd27ccbe58bb21f","observedAt":"2026-10-28T11:27:43.363+00:00","statement":{"source":"cve-program","id":"CVE-2026-99208","aliases":[],"title":"drm/xe/oa: Zero OA buffer at allocation","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/oa: Zero OA buffer at allocation\n\nttm_bo_type_kernel BOs are not guaranteed to be zeroed on allocation and\nmay contain data from previously freed pages. Since the OA buffer is\nmmap'able by userspace, this can expose stale kernel memory contents.\n\nStreams opened with DRM_XE_OA_PROPERTY_OA_DISABLED allocate the OA\nbuffer without calling xe_oa_init_oa_buffer(). Zero the buffer at\nallocation to prevent information disclosure through mmap.\n\nThe existing zeroing in xe_oa_init_oa_buffer() remains necessary for\nzero report-id/timestamp detection on enable/re-enable.\n\n(cherry picked from commit 126c4c5388f9311a390b9b254a835b0cf0f55331)","state":0,"publishedAt":"2026-10-28T10:36:01.473+00:00","modifiedAt":"2026-10-28T10:36:01.473+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                        \"drivers/gpu/drm/xe/xe_oa.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"392bf22238ff88506f410c464ba0c7a84e9de471\",\n                            \"lessThan\": \"21f41b6daf0dbe2cdaaf9f54af6e23fd3c9190b9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"392bf22238ff88506f410c464ba0c7a84e9de471\",\n                            \"lessThan\": \"cd3e2918c247db631d88cdd704596d9d27e5513e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"392bf22238ff88506f410c464ba0c7a84e9de471\",\n                            \"lessThan\": \"fd8662823caa114a63f07222d2aa448f6ac5e864\",\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                        \"drivers/gpu/drm/xe/xe_oa.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.11\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.11\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.59\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.13\",\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":[],"references":["https://git.kernel.org/stable/c/21f41b6daf0dbe2cdaaf9f54af6e23fd3c9190b9","https://git.kernel.org/stable/c/cd3e2918c247db631d88cdd704596d9d27e5513e","https://git.kernel.org/stable/c/fd8662823caa114a63f07222d2aa448f6ac5e864"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-99208","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-99208","identifiers":["CVE-2026-99208"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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