CVE-2024-43904

{"id": "CVE-2024-43904", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "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": "2024-08-26T11:15:04.847", "references": [{"url": "https://git.kernel.org/stable/c/10c20d79d59cadfe572480d98cec271a89ffb024", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/15c2990e0f0108b9c3752d7072a97d45d4283aea", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/16a8a2a839d19c4cf7253642b493ffb8eee1d857", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/5e84eda48ffb2363437db44bbd0235594f8a58f9", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Add null checks for 'stream' and 'plane' before dereferencing\n\nThis commit adds null checks for the 'stream' and 'plane' variables in\nthe dcn30_apply_idle_power_optimizations function. These variables were\npreviously assumed to be null at line 922, but they were used later in\nthe code without checking if they were null. This could potentially lead\nto a null pointer dereference, which would cause a crash.\n\nThe null checks ensure that 'stream' and 'plane' are not null before\nthey are used, preventing potential crashes.\n\nFixes the below static smatch checker:\ndrivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn30/dcn30_hwseq.c:938 dcn30_apply_idle_power_optimizations() error: we previously assumed 'stream' could be null (see line 922)\ndrivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn30/dcn30_hwseq.c:940 dcn30_apply_idle_power_optimizations() error: we previously assumed 'plane' could be null (see line 922)"}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: drm/amd/display: agregue comprobaciones nulas para 'stream' y 'plane' antes de eliminar la referencia. Esta confirmaci\u00f3n agrega comprobaciones nulas para las variables 'stream' y 'plane' en la funci\u00f3n dcn30_apply_idle_power_optimizations . Anteriormente se supon\u00eda que estas variables eran nulas en la l\u00ednea 922, pero se usaron m\u00e1s adelante en el c\u00f3digo sin verificar si eran nulas. Potencialmente, esto podr\u00eda provocar una desreferencia del puntero nulo, lo que provocar\u00eda un bloqueo. Las comprobaciones nulas garantizan que 'stream' y 'plane' no sean nulos antes de su uso, evitando posibles accidentes. Corrige el siguiente verificador de coincidencia est\u00e1tica: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn30/dcn30_hwseq.c:938 Error de dcn30_apply_idle_power_optimizations(): previamente asumimos que 'stream' podr\u00eda ser nulo (ver l\u00ednea 922) drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn30/dcn30_hwseq.c:940 Error de dcn30_apply_idle_power_optimizations(): anteriormente asumimos que 'avi\u00f3n' podr\u00eda ser nulo (consulte la l\u00ednea 922)"}], "lastModified": "2024-11-08T16:15:22.367", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E4CB0927-C720-465B-99F2-3E47215515F2", "versionEndExcluding": "6.10.5"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}