CVE-2025-39705

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{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/display/dc/core/dc.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "dd9699368f37aca4f216857847a46a8a2c289f94", "status": "affected", "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c", "versionType": "git"}, {"lessThan": "0d9f4f202de1522aadc7a827aba0ae92b3d70937", "status": "affected", "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c", "versionType": "git"}, {"lessThan": "0961673cc5f0055957aa46f25eb4ef6c07e00165", "status": "affected", "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c", "versionType": "git"}, {"lessThan": "4ade995b9b25b3c6e8dc42c27070340f1358d8c8", "status": "affected", "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c", "versionType": "git"}, {"lessThan": "1bcf63a44381691d6192872801f830ce3250e367", "status": "affected", "version": "4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/display/dc/core/dc.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.15"}, {"lessThan": "4.15", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.44", "versionType": "semver"}, {"lessThanOrEqual": "6.16.*", "status": "unaffected", "version": "6.16.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.17", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "93B272D4-D8E4-4C68-8FC5-40870432D137", "versionEndExcluding": "6.12.44", "versionStartIncluding": "4.15", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "AFC28995-B8C3-4B68-8CB6-78E792B6629D", "versionEndExcluding": "6.16.4", "versionStartIncluding": "6.13", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: fix a Null pointer dereference vulnerability\n\n[Why]\nA null pointer dereference vulnerability exists in the AMD display driver's\n(DC module) cleanup function dc_destruct().\nWhen display control context (dc->ctx) construction fails\n(due to memory allocation failure), this pointer remains NULL.\nDuring subsequent error handling when dc_destruct() is called,\nthere's no NULL check before dereferencing the perf_trace member\n(dc->ctx->perf_trace), causing a kernel null pointer dereference crash.\n\n[How]\nCheck if dc->ctx is non-NULL before dereferencing.\n\n(Updated commit text and removed unnecessary error message)\n(cherry picked from commit 9dd8e2ba268c636c240a918e0a31e6feaee19404)"}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndrm/amd/display: solucionar una vulnerabilidad de desreferencia de puntero nulo\n\n[Por qu\u00e9]\nExiste una vulnerabilidad de desreferencia de puntero nulo en la funci\u00f3n de limpieza dc_destruct() del controlador de pantalla de AMD (m\u00f3dulo DC).\nCuando la construcci\u00f3n del contexto de control de pantalla (dc->ctx) falla (debido a un fallo en la asignaci\u00f3n de memoria), este puntero permanece NULO.\nDurante el manejo de errores posterior, cuando se llama a dc_destruct(), no hay una verificaci\u00f3n de NULO antes de desreferenciar el miembro perf_trace (dc->ctx->perf_trace), causando un fallo de desreferencia de puntero nulo del kernel.\n\n[C\u00f3mo]\nVerificar si dc->ctx no es NULO antes de desreferenciar.\n\n(Texto del commit actualizado y mensaje de error innecesario eliminado)\n(seleccionado de commit 9dd8e2ba268c636c240a918e0a31e6feaee19404)"}], "id": "CVE-2025-39705", "lastModified": "2026-10-30T13:18:08.610", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-09-05T18:15:47.690", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0961673cc5f0055957aa46f25eb4ef6c07e00165"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0d9f4f202de1522aadc7a827aba0ae92b3d70937"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1bcf63a44381691d6192872801f830ce3250e367"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4ade995b9b25b3c6e8dc42c27070340f1358d8c8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dd9699368f37aca4f216857847a46a8a2c289f94"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: drm/amd/display: fix a Null pointer dereference vulnerability", "id": "2393494", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2393494"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-39705", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-09-05T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-39705\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-39705\nhttps://lore.kernel.org/linux-cve-announce/2025090549-CVE-2025-39705-6ac5@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-09-08T15:17:43.591319+00:00", "updated": "2025-09-08T15:17:43.591368+00:00", "vendors": ["amd", "amd$PRODUCT$graphics_driver", "linux", "linux$PRODUCT$linux_kernel"]}