CVE-2022-49490

{"id": "CVE-2022-49490", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2025-02-26T07:01:25.183", "references": [{"url": "https://git.kernel.org/stable/c/04bef5f1ba8ea6d7c1c8f5f65e0395c62db59cb8", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/19964dfb39bda4d7716a71009488f0668ecbcf52", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/33dc5aac46e0fad8f5eb193e5906ed0eb6b66ceb", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/49dc28b4b2e28ef7564e355c91487996c1cbebd7", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/776f5c58bfe16cf322d71eeed3c5dda1eeac7e6b", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/b2aa2c4efe93e2580d6a8774b04fe2b99756a322", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d59be579fa932c46b908f37509f319cbd4ca9a68", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is detected\n\nmdp5_get_global_state runs the risk of hitting a -EDEADLK when acquiring\nthe modeset lock, but currently mdp5_pipe_release doesn't check for if\nan error is returned. Because of this, there is a possibility of\nmdp5_pipe_release hitting a NULL dereference error.\n\nTo avoid this, let's have mdp5_pipe_release check if\nmdp5_get_global_state returns an error and propogate that error.\n\nChanges since v1:\n- Separated declaration and initialization of *new_state to avoid\n compiler warning\n- Fixed some spelling mistakes in commit message\n\nChanges since v2:\n- Return 0 in case where hwpipe is NULL as this is considered normal\n behavior\n- Added 2nd patch in series to fix a similar NULL dereference issue in\n mdp5_mixer_release\n\nPatchwork: https://patchwork.freedesktop.org/patch/485179/"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/msm/mdp5: Devuelve un c\u00f3digo de error en mdp5_pipe_release cuando se detecta un bloqueo mdp5_get_global_state corre el riesgo de alcanzar un -EDEADLK al adquirir el bloqueo modeset, pero actualmente mdp5_pipe_release no verifica si se devuelve un error. Debido a esto, existe la posibilidad de que mdp5_pipe_release alcance un error de desreferencia NULL. Para evitar esto, hagamos que mdp5_pipe_release verifique si mdp5_get_global_state devuelve un error y propague ese error. Cambios desde v1: - Declaraci\u00f3n separada e inicializaci\u00f3n de *new_state para evitar advertencias del compilador - Se corrigieron algunos errores ortogr\u00e1ficos en el mensaje de confirmaci\u00f3n Cambios desde v2: - Devuelve 0 en caso de que hwpipe sea NULL, ya que esto se considera un comportamiento normal - Se agreg\u00f3 el segundo parche en serie para corregir un problema de desreferencia NULL similar en mdp5_mixer_release Patchwork: https://patchwork.freedesktop.org/patch/485179/"}], "lastModified": "2025-10-22T17:20:22.573", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BBFFE062-9442-4F45-97E6-976A3C5CFBE1", "versionEndExcluding": "4.19.247", "versionStartIncluding": "4.18"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3EC49633-14DE-4EBD-BB80-76AE2E3EABB9", "versionEndExcluding": "5.4.198", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "34ACD872-E5BC-401C-93D5-B357A62426E0", "versionEndExcluding": "5.10.121", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "20D41697-0E8B-4B7D-8842-F17BF2AA21E1", "versionEndExcluding": "5.15.46", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "15E2DD33-2255-4B76-9C15-04FF8CBAB252", "versionEndExcluding": "5.17.14", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8E122216-2E9E-4B3E-B7B8-D575A45BA3C2", "versionEndExcluding": "5.18.3", "versionStartIncluding": "5.18"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}