{"id":"CVE-2026-98973","state":"PUBLISHED","title":"drm/bridge: Fix unlocked list_del in drm_bridge_add()","description":"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.","publishedAt":"2026-10-23T12:19:46.458Z","updatedAt":"2026-10-23T12:19:46.458Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"17805a15d1751f5d6bb06f924f9bed216feb8db7","status":"affected","lessThan":"f469d850854101eae60dd4080244f114a9bcf2b5","versionType":"git"},{"version":"17805a15d1751f5d6bb06f924f9bed216feb8db7","status":"affected","lessThan":"b62e3db8cdc1680e1c3390591e872f485148541a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/drm_bridge.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.19","versionType":"semver"},{"version":"7.2.11","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/drm_bridge.c"]}],"references":["https://git.kernel.org/stable/c/f469d850854101eae60dd4080244f114a9bcf2b5","https://git.kernel.org/stable/c/b62e3db8cdc1680e1c3390591e872f485148541a"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98973.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98973","state":"PUBLISHED","datePublished":"2026-10-23T12:19:46.458Z","dateUpdated":"2026-10-23T12:19:46.458Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.383Z"},"containers":{"cna":{"title":"drm/bridge: Fix unlocked list_del in drm_bridge_add()","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":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"17805a15d1751f5d6bb06f924f9bed216feb8db7","status":"affected","lessThan":"f469d850854101eae60dd4080244f114a9bcf2b5","versionType":"git"},{"version":"17805a15d1751f5d6bb06f924f9bed216feb8db7","status":"affected","lessThan":"b62e3db8cdc1680e1c3390591e872f485148541a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/drm_bridge.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.19","versionType":"semver"},{"version":"7.2.11","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/drm_bridge.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/f469d850854101eae60dd4080244f114a9bcf2b5"},{"url":"https://git.kernel.org/stable/c/b62e3db8cdc1680e1c3390591e872f485148541a"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-23T12:19:46.458Z"},"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"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}