{"id":"CVE-2024-57798","state":"PUBLISHED","title":"drm/dp_mst: Ensure mst_primary pointer is valid in drm_dp_mst_handle_up_req()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/dp_mst: Ensure mst_primary pointer is valid in drm_dp_mst_handle_up_req()\n\nWhile receiving an MST up request message from one thread in\ndrm_dp_mst_handle_up_req(), the MST topology could be removed from\nanother thread via drm_dp_mst_topology_mgr_set_mst(false), freeing\nmst_primary and setting drm_dp_mst_topology_mgr::mst_primary to NULL.\nThis could lead to a NULL deref/use-after-free of mst_primary in\ndrm_dp_mst_handle_up_req().\n\nAvoid the above by holding a reference for mst_primary in\ndrm_dp_mst_handle_up_req() while it's used.\n\nv2: Fix kfreeing the request if getting an mst_primary reference fails.","publishedAt":"2025-01-11T12:39:48.212Z","updatedAt":"2026-05-11T20:59:09.510Z","severity":{"score":7.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"9408cc94eb041d0c2f9f00189a613b94c0449450","status":"affected","lessThan":"f61b2e5e7821f868d6afc22382a66a30ee780ba0","versionType":"git"},{"version":"9408cc94eb041d0c2f9f00189a613b94c0449450","status":"affected","lessThan":"9735d40f5fde9970aa46e828ecc85c32571d58a2","versionType":"git"},{"version":"9408cc94eb041d0c2f9f00189a613b94c0449450","status":"affected","lessThan":"ce55818b2d3a999f886af91679589e4644ff1dc8","versionType":"git"},{"version":"9408cc94eb041d0c2f9f00189a613b94c0449450","status":"affected","lessThan":"e54b00086f7473dbda1a7d6fc47720ced157c6a8","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/display/drm_dp_mst_topology.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.5","versionType":"semver"},{"version":"6.1.123","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.69","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.8","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13","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/display/drm_dp_mst_topology.c"]}],"references":["https://git.kernel.org/stable/c/f61b2e5e7821f868d6afc22382a66a30ee780ba0","https://git.kernel.org/stable/c/9735d40f5fde9970aa46e828ecc85c32571d58a2","https://git.kernel.org/stable/c/ce55818b2d3a999f886af91679589e4644ff1dc8","https://git.kernel.org/stable/c/e54b00086f7473dbda1a7d6fc47720ced157c6a8","https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:08:12.933Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/57xxx/CVE-2024-57798.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-57798","state":"PUBLISHED","datePublished":"2025-01-11T12:39:48.212Z","dateUpdated":"2026-05-11T20:59:09.510Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-01-11T12:32:49.420Z"},"containers":{"cna":{"title":"drm/dp_mst: Ensure mst_primary pointer is valid in drm_dp_mst_handle_up_req()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/dp_mst: Ensure mst_primary pointer is valid in drm_dp_mst_handle_up_req()\n\nWhile receiving an MST up request message from one thread in\ndrm_dp_mst_handle_up_req(), the MST topology could be removed from\nanother thread via drm_dp_mst_topology_mgr_set_mst(false), freeing\nmst_primary and setting drm_dp_mst_topology_mgr::mst_primary to NULL.\nThis could lead to a NULL deref/use-after-free of mst_primary in\ndrm_dp_mst_handle_up_req().\n\nAvoid the above by holding a reference for mst_primary in\ndrm_dp_mst_handle_up_req() while it's used.\n\nv2: Fix kfreeing the request if getting an mst_primary reference fails."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"9408cc94eb041d0c2f9f00189a613b94c0449450","status":"affected","lessThan":"f61b2e5e7821f868d6afc22382a66a30ee780ba0","versionType":"git"},{"version":"9408cc94eb041d0c2f9f00189a613b94c0449450","status":"affected","lessThan":"9735d40f5fde9970aa46e828ecc85c32571d58a2","versionType":"git"},{"version":"9408cc94eb041d0c2f9f00189a613b94c0449450","status":"affected","lessThan":"ce55818b2d3a999f886af91679589e4644ff1dc8","versionType":"git"},{"version":"9408cc94eb041d0c2f9f00189a613b94c0449450","status":"affected","lessThan":"e54b00086f7473dbda1a7d6fc47720ced157c6a8","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/display/drm_dp_mst_topology.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.5","versionType":"semver"},{"version":"6.1.123","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.69","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.8","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13","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/display/drm_dp_mst_topology.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/f61b2e5e7821f868d6afc22382a66a30ee780ba0"},{"url":"https://git.kernel.org/stable/c/9735d40f5fde9970aa46e828ecc85c32571d58a2"},{"url":"https://git.kernel.org/stable/c/ce55818b2d3a999f886af91679589e4644ff1dc8"},{"url":"https://git.kernel.org/stable/c/e54b00086f7473dbda1a7d6fc47720ced157c6a8"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T20:59:09.510Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.1.123"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.6.69"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.12.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.13"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.8,"attackVector":"LOCAL","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"id":"CVE-2024-57798","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2025-10-01T20:08:59.297300Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","lang":"en","type":"CWE","description":"CWE-476 NULL Pointer Dereference"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-01T20:17:07.111Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T20:54:32.760Z"}}]}}}