{"dataType":"CVE_RECORD","cveMetadata":{"cveId":"CVE-2024-26874","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-02-19T14:20:24.185Z","datePublished":"2024-04-17T10:27:33.278Z","dateUpdated":"2026-05-11T20:05:48.588Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T20:05:48.588Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/mediatek: Fix a null pointer crash in mtk_drm_crtc_finish_page_flip\n\nIt's possible that mtk_crtc->event is NULL in\nmtk_drm_crtc_finish_page_flip().\n\npending_needs_vblank value is set by mtk_crtc->event, but in\nmtk_drm_crtc_atomic_flush(), it's is not guarded by the same\nlock in mtk_drm_finish_page_flip(), thus a race condition happens.\n\nConsider the following case:\n\nCPU1                              CPU2\nstep 1:\nmtk_drm_crtc_atomic_begin()\nmtk_crtc->event is not null,\n                                  step 1:\n                                  mtk_drm_crtc_atomic_flush:\n                                  mtk_drm_crtc_update_config(\n                                      !!mtk_crtc->event)\nstep 2:\nmtk_crtc_ddp_irq ->\nmtk_drm_finish_page_flip:\nlock\nmtk_crtc->event set to null,\npending_needs_vblank set to false\nunlock\n                                  pending_needs_vblank set to true,\n\n                                  step 2:\n                                  mtk_crtc_ddp_irq ->\n                                  mtk_drm_finish_page_flip called again,\n                                  pending_needs_vblank is still true\n                                  //null pointer\n\nInstead of guarding the entire mtk_drm_crtc_atomic_flush(), it's more\nefficient to just check if mtk_crtc->event is null before use."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/mediatek/mtk_drm_crtc.c"],"versions":[{"version":"119f5173628aa7a0c3cf9db83460d40709e8241d","lessThan":"accdac6b71d5a2b84040c3d2234f53a60edc398e","status":"affected","versionType":"git"},{"version":"119f5173628aa7a0c3cf9db83460d40709e8241d","lessThan":"dfde84cc6c589f2a9f820f12426d97365670b731","status":"affected","versionType":"git"},{"version":"119f5173628aa7a0c3cf9db83460d40709e8241d","lessThan":"4688be96d20ffa49d2186523ee84f475f316fd49","status":"affected","versionType":"git"},{"version":"119f5173628aa7a0c3cf9db83460d40709e8241d","lessThan":"9beec711a17245b853d64488fd5b739031612340","status":"affected","versionType":"git"},{"version":"119f5173628aa7a0c3cf9db83460d40709e8241d","lessThan":"d2bd30c710475b2e29288827d2c91f9e6e2b91d7","status":"affected","versionType":"git"},{"version":"119f5173628aa7a0c3cf9db83460d40709e8241d","lessThan":"a3dd12b64ae8373a41a216a0b621df224210860a","status":"affected","versionType":"git"},{"version":"119f5173628aa7a0c3cf9db83460d40709e8241d","lessThan":"9acee29a38b4d4b70f1f583e5ef9a245db4db710","status":"affected","versionType":"git"},{"version":"119f5173628aa7a0c3cf9db83460d40709e8241d","lessThan":"3fc88b246a2fc16014e374040fc15af1d3752535","status":"affected","versionType":"git"},{"version":"119f5173628aa7a0c3cf9db83460d40709e8241d","lessThan":"c958e86e9cc1b48cac004a6e245154dfba8e163b","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/mediatek/mtk_drm_crtc.c"],"versions":[{"version":"4.7","status":"affected"},{"version":"0","lessThan":"4.7","status":"unaffected","versionType":"semver"},{"version":"4.19.311","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.273","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.214","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.153","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.83","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.23","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.7.11","lessThanOrEqual":"6.7.*","status":"unaffected","versionType":"semver"},{"version":"6.8.2","lessThanOrEqual":"6.8.*","status":"unaffected","versionType":"semver"},{"version":"6.9","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":"4.7","versionEndExcluding":"4.19.311"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"5.4.273"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"5.10.214"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"5.15.153"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"6.1.83"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"6.6.23"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"6.7.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"6.8.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.7","versionEndExcluding":"6.9"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/accdac6b71d5a2b84040c3d2234f53a60edc398e"},{"url":"https://git.kernel.org/stable/c/dfde84cc6c589f2a9f820f12426d97365670b731"},{"url":"https://git.kernel.org/stable/c/4688be96d20ffa49d2186523ee84f475f316fd49"},{"url":"https://git.kernel.org/stable/c/9beec711a17245b853d64488fd5b739031612340"},{"url":"https://git.kernel.org/stable/c/d2bd30c710475b2e29288827d2c91f9e6e2b91d7"},{"url":"https://git.kernel.org/stable/c/a3dd12b64ae8373a41a216a0b621df224210860a"},{"url":"https://git.kernel.org/stable/c/9acee29a38b4d4b70f1f583e5ef9a245db4db710"},{"url":"https://git.kernel.org/stable/c/3fc88b246a2fc16014e374040fc15af1d3752535"},{"url":"https://git.kernel.org/stable/c/c958e86e9cc1b48cac004a6e245154dfba8e163b"}],"title":"drm/mediatek: Fix a null pointer crash in mtk_drm_crtc_finish_page_flip","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-26874","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-04-23T14:01:58.775611Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-07-05T17:21:21.785Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T00:21:04.219Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/accdac6b71d5a2b84040c3d2234f53a60edc398e","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/dfde84cc6c589f2a9f820f12426d97365670b731","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/4688be96d20ffa49d2186523ee84f475f316fd49","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/9beec711a17245b853d64488fd5b739031612340","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/d2bd30c710475b2e29288827d2c91f9e6e2b91d7","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/a3dd12b64ae8373a41a216a0b621df224210860a","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/9acee29a38b4d4b70f1f583e5ef9a245db4db710","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/3fc88b246a2fc16014e374040fc15af1d3752535","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/c958e86e9cc1b48cac004a6e245154dfba8e163b","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html","tags":["x_transferred"]}]}]},"dataVersion":"5.2"}