CVE-2026-31571

{"id": "CVE-2026-31571", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-31571", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-05T21:39:14.635829Z"}}], "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}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6a01df2f1b2a3b29721143729a3feff816bc0083", "lessThan": "70e2eb91cb6310a3508439f6f2539dfffa0abf77", "versionType": "git"}, {"status": "affected", "version": "6a01df2f1b2a3b29721143729a3feff816bc0083", "lessThan": "12f3b6cbab8fbeb95097685b40f0147406cf9746", "versionType": "git"}, {"status": "affected", "version": "6a01df2f1b2a3b29721143729a3feff816bc0083", "lessThan": "bfa71b7a9dc6b5b8af157686e03308291141d00c", "versionType": "git"}], "programFiles": ["drivers/gpu/drm/i915/display/intel_plane.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.15"}, {"status": "unaffected", "version": "0", "lessThan": "6.15", "versionType": "semver"}, {"status": "unaffected", "version": "6.18.21", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.11", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/gpu/drm/i915/display/intel_plane.c"], "defaultStatus": "affected"}]}], "published": "2026-04-24T15:16:31.653", "references": [{"url": "https://git.kernel.org/stable/c/12f3b6cbab8fbeb95097685b40f0147406cf9746", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/70e2eb91cb6310a3508439f6f2539dfffa0abf77", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/bfa71b7a9dc6b5b8af157686e03308291141d00c", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915: Unlink NV12 planes earlier\n\nunlink_nv12_plane() will clobber parts of the plane state\npotentially already set up by plane_atomic_check(), so we\nmust make sure not to call the two in the wrong order.\nThe problem happens when a plane previously selected as\na Y plane is now configured as a normal plane by user space.\nplane_atomic_check() will first compute the proper plane\nstate based on the userspace request, and unlink_nv12_plane()\nlater clears some of the state.\n\nThis used to work on account of unlink_nv12_plane() skipping\nthe state clearing based on the plane visibility. But I removed\nthat check, thinking it was an impossible situation. Now when\nthat situation happens unlink_nv12_plane() will just WARN\nand proceed to clobber the state.\n\nRather than reverting to the old way of doing things, I think\nit's more clear if we unlink the NV12 planes before we even\ncompute the new plane state.\n\n(cherry picked from commit 017ecd04985573eeeb0745fa2c23896fb22ee0cc)"}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndrm/i915: Desvincular planos NV12 antes\n\nunlink_nv12_plane() sobrescribir\u00e1 partes del estado del plano potencialmente ya configuradas por plane_atomic_check(), por lo que debemos asegurarnos de no llamar a las dos en el orden incorrecto. El problema ocurre cuando un plano previamente seleccionado como un plano Y ahora se configura como un plano normal por el espacio de usuario. plane_atomic_check() primero calcular\u00e1 el estado del plano adecuado basado en la solicitud del espacio de usuario, y unlink_nv12_plane() m\u00e1s tarde borra parte del estado.\n\nEsto sol\u00eda funcionar debido a que unlink_nv12_plane() omit\u00eda la limpieza del estado basada en la visibilidad del plano. Pero elimin\u00e9 esa verificaci\u00f3n, pensando que era una situaci\u00f3n imposible. Ahora, cuando esa situaci\u00f3n ocurre, unlink_nv12_plane() simplemente ADVERTIR\u00c1 y proceder\u00e1 a sobrescribir el estado.\n\nEn lugar de revertir a la antigua forma de hacer las cosas, creo que es m\u00e1s claro si desvinculamos los planos NV12 incluso antes de calcular el nuevo estado del plano.\n\n(seleccionado de la confirmaci\u00f3n 017ecd04985573eeeb0745fa2c23896fb22ee0cc)"}], "lastModified": "2026-11-11T23:10:00.263", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "36BA90C1-6493-4928-A360-8DF69289C352", "versionEndExcluding": "6.18.21", "versionStartIncluding": "6.15.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4CA2E747-A9EC-4518-9AA2-B4247FC748B7", "versionEndExcluding": "6.19.11", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A1ECC65A-EE37-4479-8E99-4BB68A22A31F"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4AE85AD8-4641-4E7C-A2F4-305E2CD9EE64"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F666C8D8-6538-46D4-B318-87610DE64C34"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "02259FDA-961B-47BC-AE7F-93D7EC6E90C2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "58A9FEFF-C040-420D-8F0A-BFDAAA1DF258"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1D2315C0-D46F-4F85-9754-F9E5E11374A6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "512EE3A8-A590-4501-9A94-5D4B268D6138"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}