CVE-2026-89816

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89816", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.768Z", "datePublished": "2026-09-16T10:30:49.052Z", "dateUpdated": "2026-10-19T08:53:10.436Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:53:10.436Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm: Fix drm_crtc_commit leak if signaled when PAGE_FLIP_EVENT is used\n\nCommit 1c6ceeee6ebb (\"drm/atomic: Fix memleak on ERESTARTSYS during\nnon-blocking commits\") fixed a very similar issue when the event was\nallocated by drm_atomic_helper_setup_commit() itself.\n\nHowever, if the event is allocated in prepare_signaling(), it will also be\nset to NULL in complete_signaling(), which prevents drm_crtc_commit from\nbeing put in __drm_atomic_helper_crtc_destroy_state().\n\nDropping the reference when the event is set to NULL at\ncomplete_signaling() fixes the leak.\n\nThe leak can be reproduced by sending a signal to the thread using\nDRM_MODE_PAGE_FLIP_EVENT and using a sw_sync fence to cause the atomic\nioctl to block at drm_atomic_helper_wait_for_fences(). It happened both\nwith amdgpu and vkms."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/drm_atomic_uapi.c"], "versions": [{"version": "24835e442f289813aa568d142a755672a740503c", "lessThan": "c5517b71101f61a45144e3cf77a19626355272de", "status": "affected", "versionType": "git"}, {"version": "24835e442f289813aa568d142a755672a740503c", "lessThan": "866a04137dac7e82a3848851061ff7ed15c2847e", "status": "affected", "versionType": "git"}, {"version": "24835e442f289813aa568d142a755672a740503c", "lessThan": "6a6a7aae4681a20cd32789fea9a487aaafa0e7a3", "status": "affected", "versionType": "git"}, {"version": "24835e442f289813aa568d142a755672a740503c", "lessThan": "e2f27b5ed9084feb7bae9ef2bc80de37c92280b1", "status": "affected", "versionType": "git"}, {"version": "24835e442f289813aa568d142a755672a740503c", "lessThan": "ff73f5f43d032c3da3c534c517f661e8dfeb358a", "status": "affected", "versionType": "git"}, {"version": "24835e442f289813aa568d142a755672a740503c", "lessThan": "66b1b309886337745d395bbc158440ab196305ce", "status": "affected", "versionType": "git"}, {"version": "24835e442f289813aa568d142a755672a740503c", "lessThan": "e6195b941fdc8d81fc431c9f25539cf6c6234b51", "status": "affected", "versionType": "git"}, {"version": "24835e442f289813aa568d142a755672a740503c", "lessThan": "4d4be202165e832d74849b4a68e289a2a377039c", "status": "affected", "versionType": "git"}, {"version": "c75fe7899538890109aad7bbf92b2f304389e825", "status": "affected", "versionType": "git"}, {"version": "2a3241044b1c4ecc13f73b7158881881fb7534a1", "status": "affected", "versionType": "git"}, {"version": "4.9.19", "lessThan": "4.10", "status": "affected", "versionType": "semver"}, {"version": "4.10.7", "lessThan": "4.11", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/drm_atomic_uapi.c"], "versions": [{"version": "4.11", "status": "affected"}, {"version": "0", "lessThan": "4.11", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.270", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.221", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.188", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.110", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.51", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.5", "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": "4.11", "versionEndExcluding": "5.10.270"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "5.15.221"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "6.1.188"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "6.12.110"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "6.18.51"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "7.2.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "7.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9.19"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.10.7"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c5517b71101f61a45144e3cf77a19626355272de"}, {"url": "https://git.kernel.org/stable/c/866a04137dac7e82a3848851061ff7ed15c2847e"}, {"url": "https://git.kernel.org/stable/c/6a6a7aae4681a20cd32789fea9a487aaafa0e7a3"}, {"url": "https://git.kernel.org/stable/c/e2f27b5ed9084feb7bae9ef2bc80de37c92280b1"}, {"url": "https://git.kernel.org/stable/c/ff73f5f43d032c3da3c534c517f661e8dfeb358a"}, {"url": "https://git.kernel.org/stable/c/66b1b309886337745d395bbc158440ab196305ce"}, {"url": "https://git.kernel.org/stable/c/e6195b941fdc8d81fc431c9f25539cf6c6234b51"}, {"url": "https://git.kernel.org/stable/c/4d4be202165e832d74849b4a68e289a2a377039c"}], "title": "drm: Fix drm_crtc_commit leak if signaled when PAGE_FLIP_EVENT is used", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/drm_atomic_uapi.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "c5517b71101f61a45144e3cf77a19626355272de", "status": "affected", "version": "24835e442f289813aa568d142a755672a740503c", "versionType": "git"}, {"lessThan": "866a04137dac7e82a3848851061ff7ed15c2847e", "status": "affected", "version": "24835e442f289813aa568d142a755672a740503c", "versionType": "git"}, {"lessThan": "6a6a7aae4681a20cd32789fea9a487aaafa0e7a3", "status": "affected", "version": "24835e442f289813aa568d142a755672a740503c", "versionType": "git"}, {"lessThan": "e2f27b5ed9084feb7bae9ef2bc80de37c92280b1", "status": "affected", "version": "24835e442f289813aa568d142a755672a740503c", "versionType": "git"}, {"lessThan": "ff73f5f43d032c3da3c534c517f661e8dfeb358a", "status": "affected", "version": "24835e442f289813aa568d142a755672a740503c", "versionType": "git"}, {"lessThan": "66b1b309886337745d395bbc158440ab196305ce", "status": "affected", "version": "24835e442f289813aa568d142a755672a740503c", "versionType": "git"}, {"lessThan": "e6195b941fdc8d81fc431c9f25539cf6c6234b51", "status": "affected", "version": "24835e442f289813aa568d142a755672a740503c", "versionType": "git"}, {"lessThan": "4d4be202165e832d74849b4a68e289a2a377039c", "status": "affected", "version": "24835e442f289813aa568d142a755672a740503c", "versionType": "git"}, {"status": "affected", "version": "c75fe7899538890109aad7bbf92b2f304389e825", "versionType": "git"}, {"status": "affected", "version": "2a3241044b1c4ecc13f73b7158881881fb7534a1", "versionType": "git"}, {"lessThan": "4.10", "status": "affected", "version": "4.9.19", "versionType": "semver"}, {"lessThan": "4.11", "status": "affected", "version": "4.10.7", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/drm_atomic_uapi.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.11"}, {"lessThan": "4.11", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.270", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.221", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.188", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.157", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.110", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.51", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.5", "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: Fix drm_crtc_commit leak if signaled when PAGE_FLIP_EVENT is used\n\nCommit 1c6ceeee6ebb (\"drm/atomic: Fix memleak on ERESTARTSYS during\nnon-blocking commits\") fixed a very similar issue when the event was\nallocated by drm_atomic_helper_setup_commit() itself.\n\nHowever, if the event is allocated in prepare_signaling(), it will also be\nset to NULL in complete_signaling(), which prevents drm_crtc_commit from\nbeing put in __drm_atomic_helper_crtc_destroy_state().\n\nDropping the reference when the event is set to NULL at\ncomplete_signaling() fixes the leak.\n\nThe leak can be reproduced by sending a signal to the thread using\nDRM_MODE_PAGE_FLIP_EVENT and using a sw_sync fence to cause the atomic\nioctl to block at drm_atomic_helper_wait_for_fences(). It happened both\nwith amdgpu and vkms."}], "id": "CVE-2026-89816", "lastModified": "2026-10-19T09:18:25.443", "metrics": {}, "published": "2026-09-16T11:16:46.837", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4d4be202165e832d74849b4a68e289a2a377039c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/66b1b309886337745d395bbc158440ab196305ce"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6a6a7aae4681a20cd32789fea9a487aaafa0e7a3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/866a04137dac7e82a3848851061ff7ed15c2847e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c5517b71101f61a45144e3cf77a19626355272de"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e2f27b5ed9084feb7bae9ef2bc80de37c92280b1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e6195b941fdc8d81fc431c9f25539cf6c6234b51"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ff73f5f43d032c3da3c534c517f661e8dfeb358a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: drm: Fix drm_crtc_commit leak if signaled when PAGE_FLIP_EVENT is used", "id": "2535320", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2535320"}, "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:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-911", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm: Fix drm_crtc_commit leak if signaled when PAGE_FLIP_EVENT is used\nCommit 1c6ceeee6ebb (\"drm/atomic: Fix memleak on ERESTARTSYS during\nnon-blocking commits\") fixed a very similar issue when the event was\nallocated by drm_atomic_helper_setup_commit() itself.\nHowever, if the event is allocated in prepare_signaling(), it will also be\nset to NULL in complete_signaling(), which prevents drm_crtc_commit from\nbeing put in __drm_atomic_helper_crtc_destroy_state().\nDropping the reference when the event is set to NULL at\ncomplete_signaling() fixes the leak.\nThe leak can be reproduced by sending a signal to the thread using\nDRM_MODE_PAGE_FLIP_EVENT and using a sw_sync fence to cause the atomic\nioctl to block at drm_atomic_helper_wait_for_fences(). It happened both\nwith amdgpu and vkms.", "A flaw was found in the Linux kernel's Direct Rendering Manager (DRM) subsystem. This memory leak occurs when a signal is sent to a thread using `DRM_MODE_PAGE_FLIP_EVENT`, specifically when `drm_crtc_commit` is not properly put in `__drm_atomic_helper_crtc_destroy_state()`. A local attacker could potentially exploit this to cause a denial of service by exhausting system memory."], "name": "CVE-2026-89816", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel-rt", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-09-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-89816\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-89816\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89816.mbox"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[24835e442f289813aa568d142a755672a740503c,c5517b71101f61a45144e3cf77a19626355272de)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[24835e442f289813aa568d142a755672a740503c,866a04137dac7e82a3848851061ff7ed15c2847e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[24835e442f289813aa568d142a755672a740503c,6a6a7aae4681a20cd32789fea9a487aaafa0e7a3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[24835e442f289813aa568d142a755672a740503c,e2f27b5ed9084feb7bae9ef2bc80de37c92280b1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[24835e442f289813aa568d142a755672a740503c,ff73f5f43d032c3da3c534c517f661e8dfeb358a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[24835e442f289813aa568d142a755672a740503c,66b1b309886337745d395bbc158440ab196305ce)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[24835e442f289813aa568d142a755672a740503c,e6195b941fdc8d81fc431c9f25539cf6c6234b51)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[24835e442f289813aa568d142a755672a740503c,4d4be202165e832d74849b4a68e289a2a377039c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "c75fe7899538890109aad7bbf92b2f304389e825"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2a3241044b1c4ecc13f73b7158881881fb7534a1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.9.19,4.10)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.10.7,4.11)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"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": "4.11"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.11)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[5.10.270,5.10.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[5.15.221,5.15.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.1.188,6.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.6.157,6.6.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.110,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.51,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2.5,7.2.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "7.3-rc2"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-18T09:15:06.978550+00:00", "updated": "2026-09-24T02:00:14.529949+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}