CVE-2026-99208

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-99208", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.401Z", "datePublished": "2026-10-28T10:36:01.473Z", "dateUpdated": "2026-10-28T10:36:01.473Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-28T10:36:01.473Z"}, "descriptions": [{"lang": "en", "value": "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)"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/xe/xe_oa.c"], "versions": [{"version": "392bf22238ff88506f410c464ba0c7a84e9de471", "lessThan": "21f41b6daf0dbe2cdaaf9f54af6e23fd3c9190b9", "status": "affected", "versionType": "git"}, {"version": "392bf22238ff88506f410c464ba0c7a84e9de471", "lessThan": "cd3e2918c247db631d88cdd704596d9d27e5513e", "status": "affected", "versionType": "git"}, {"version": "392bf22238ff88506f410c464ba0c7a84e9de471", "lessThan": "fd8662823caa114a63f07222d2aa448f6ac5e864", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/xe/xe_oa.c"], "versions": [{"version": "6.11", "status": "affected"}, {"version": "0", "lessThan": "6.11", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.59", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.13", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.18.59"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "7.2.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/21f41b6daf0dbe2cdaaf9f54af6e23fd3c9190b9"}, {"url": "https://git.kernel.org/stable/c/cd3e2918c247db631d88cdd704596d9d27e5513e"}, {"url": "https://git.kernel.org/stable/c/fd8662823caa114a63f07222d2aa448f6ac5e864"}], "title": "drm/xe/oa: Zero OA buffer at allocation", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/xe/xe_oa.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "21f41b6daf0dbe2cdaaf9f54af6e23fd3c9190b9", "status": "affected", "version": "392bf22238ff88506f410c464ba0c7a84e9de471", "versionType": "git"}, {"lessThan": "cd3e2918c247db631d88cdd704596d9d27e5513e", "status": "affected", "version": "392bf22238ff88506f410c464ba0c7a84e9de471", "versionType": "git"}, {"lessThan": "fd8662823caa114a63f07222d2aa448f6ac5e864", "status": "affected", "version": "392bf22238ff88506f410c464ba0c7a84e9de471", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/xe/xe_oa.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.11"}, {"lessThan": "6.11", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.59", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.13", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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)"}], "id": "CVE-2026-99208", "lastModified": "2026-10-28T11:17:42.170", "metrics": {}, "published": "2026-10-28T11:17:42.170", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/21f41b6daf0dbe2cdaaf9f54af6e23fd3c9190b9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cd3e2918c247db631d88cdd704596d9d27e5513e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fd8662823caa114a63f07222d2aa448f6ac5e864"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: kernel: Information disclosure via uninitialized buffer allocation in Intel Xe driver", "id": "2562728", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2562728"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-908", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/xe/oa: Zero OA buffer at allocation\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.\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.\nThe existing zeroing in xe_oa_init_oa_buffer() remains necessary for\nzero report-id/timestamp detection on enable/re-enable.\n(cherry picked from commit 126c4c5388f9311a390b9b254a835b0cf0f55331)", "A flaw was found in the Linux kernel's Intel Xe graphics driver. It allows information disclosure because memory buffers allocated for observation architecture (OA) streams are not cleared before being made accessible to user space. A local user can exploit this vulnerability by memory-mapping the uninitialized buffer, potentially exposing stale data from previously freed kernel memory."], "name": "CVE-2026-99208", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-28T10:36:01Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-99208\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-99208\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-99208.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[392bf22238ff88506f410c464ba0c7a84e9de471,21f41b6daf0dbe2cdaaf9f54af6e23fd3c9190b9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[392bf22238ff88506f410c464ba0c7a84e9de471,cd3e2918c247db631d88cdd704596d9d27e5513e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[392bf22238ff88506f410c464ba0c7a84e9de471,fd8662823caa114a63f07222d2aa448f6ac5e864)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.11"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.11)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.59,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2.13,7.2.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[392bf22238ff88506f410c464ba0c7a84e9de471,21f41b6daf0dbe2cdaaf9f54af6e23fd3c9190b9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[392bf22238ff88506f410c464ba0c7a84e9de471,cd3e2918c247db631d88cdd704596d9d27e5513e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[392bf22238ff88506f410c464ba0c7a84e9de471,fd8662823caa114a63f07222d2aa448f6ac5e864)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.11"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.11)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.59,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2.13,7.2.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-28T12:30:17.667880+00:00", "updated": "2026-10-29T18:30:14.427927+00:00", "vendors": ["linux", "linux$PRODUCT$linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-908"]}