CVE-2026-98973

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98973", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.383Z", "datePublished": "2026-10-23T12:19:46.458Z", "dateUpdated": "2026-10-23T12:19:46.458Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-23T12:19:46.458Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/bridge: Fix unlocked list_del in drm_bridge_add()\n\nWhen re-adding a bridge that was previously removed, drm_bridge_add()\ndrops it from bridge_lingering_list without holding bridge_lock.\n\nBoth bridge_list and bridge_lingering_list are protected by bridge_lock,\nas they are concurrently modified by drm_bridge_remove() and\n__drm_bridge_free(), and walked by the debugfs 'bridges' file. Running\nthe list_empty() test and the list_del_init() outside of the lock may\ntherefore corrupt either list.\n\nPerform both under bridge_lock."}], "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_bridge.c"], "versions": [{"version": "17805a15d1751f5d6bb06f924f9bed216feb8db7", "lessThan": "f469d850854101eae60dd4080244f114a9bcf2b5", "status": "affected", "versionType": "git"}, {"version": "17805a15d1751f5d6bb06f924f9bed216feb8db7", "lessThan": "b62e3db8cdc1680e1c3390591e872f485148541a", "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/drm_bridge.c"], "versions": [{"version": "6.19", "status": "affected"}, {"version": "0", "lessThan": "6.19", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.11", "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": "6.19", "versionEndExcluding": "7.2.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/f469d850854101eae60dd4080244f114a9bcf2b5"}, {"url": "https://git.kernel.org/stable/c/b62e3db8cdc1680e1c3390591e872f485148541a"}], "title": "drm/bridge: Fix unlocked list_del in drm_bridge_add()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/drm_bridge.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "f469d850854101eae60dd4080244f114a9bcf2b5", "status": "affected", "version": "17805a15d1751f5d6bb06f924f9bed216feb8db7", "versionType": "git"}, {"lessThan": "b62e3db8cdc1680e1c3390591e872f485148541a", "status": "affected", "version": "17805a15d1751f5d6bb06f924f9bed216feb8db7", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/drm_bridge.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.19"}, {"lessThan": "6.19", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.11", "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/bridge: Fix unlocked list_del in drm_bridge_add()\n\nWhen re-adding a bridge that was previously removed, drm_bridge_add()\ndrops it from bridge_lingering_list without holding bridge_lock.\n\nBoth bridge_list and bridge_lingering_list are protected by bridge_lock,\nas they are concurrently modified by drm_bridge_remove() and\n__drm_bridge_free(), and walked by the debugfs 'bridges' file. Running\nthe list_empty() test and the list_del_init() outside of the lock may\ntherefore corrupt either list.\n\nPerform both under bridge_lock."}], "id": "CVE-2026-98973", "lastModified": "2026-10-23T13:17:18.900", "metrics": {}, "published": "2026-10-23T13:17:18.900", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b62e3db8cdc1680e1c3390591e872f485148541a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f469d850854101eae60dd4080244f114a9bcf2b5"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: drm/bridge: Fix unlocked list_del in drm_bridge_add()", "id": "2559762", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2559762"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-413", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/bridge: Fix unlocked list_del in drm_bridge_add()\nWhen re-adding a bridge that was previously removed, drm_bridge_add()\ndrops it from bridge_lingering_list without holding bridge_lock.\nBoth bridge_list and bridge_lingering_list are protected by bridge_lock,\nas they are concurrently modified by drm_bridge_remove() and\n__drm_bridge_free(), and walked by the debugfs 'bridges' file. Running\nthe list_empty() test and the list_del_init() outside of the lock may\ntherefore corrupt either list.\nPerform both under bridge_lock.", "A flaw was found in the Linux kernel's DRM (Direct Rendering Manager) bridge subsystem. A local attacker could exploit a race condition in the drm_bridge_add() function to cause a Denial of Service (DoS) through a system crash. When re-adding a previously removed display bridge, the function modifies an internal tracking list without acquiring the proper lock, leading to kernel list corruption during concurrent operations."], "name": "CVE-2026-98973", "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:6", "fix_state": "Out of support scope", "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": "Fix deferred", "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": "2026-10-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98973\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98973\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98973.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[17805a15d1751f5d6bb06f924f9bed216feb8db7,f469d850854101eae60dd4080244f114a9bcf2b5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[17805a15d1751f5d6bb06f924f9bed216feb8db7,b62e3db8cdc1680e1c3390591e872f485148541a)"}}], "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": "6.19"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.19)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.11,7.3.0]"}}, {"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": "[17805a15d1751f5d6bb06f924f9bed216feb8db7,f469d850854101eae60dd4080244f114a9bcf2b5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[17805a15d1751f5d6bb06f924f9bed216feb8db7,b62e3db8cdc1680e1c3390591e872f485148541a)"}}], "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": "6.19"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.19)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.11,7.3.0]"}}, {"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": "2026-10-23T18:00:15.842974+00:00", "updated": "2026-10-29T22:00:09.203027+00:00", "vendors": ["linux", "linux$PRODUCT$linux", "linux$PRODUCT$linux_kernel"]}