| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "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" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-26874", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
