{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-7477", "assignerOrgId": "56a131ea-b967-4a0d-a41e-5f3549952846", "state": "PUBLISHED", "assignerShortName": "Arm", "dateReserved": "2026-04-29T22:26:00.556Z", "datePublished": "2026-09-08T14:20:38.565Z", "dateUpdated": "2026-09-08T14:20:38.565Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "56a131ea-b967-4a0d-a41e-5f3549952846", "shortName": "Arm", "dateUpdated": "2026-09-08T14:20:38.565Z"}, "title": "Mali GPU Kernel Driver allows access to already freed memory", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-416", "description": "CWE-416 Use After Free", "type": "CWE"}]}], "affected": [{"vendor": "Arm Ltd", "product": "Bifrost GPU Kernel Driver", "versions": [{"status": "affected", "version": "r44p0", "lessThanOrEqual": "r49p4", "versionType": "patch"}, {"status": "affected", "version": "r50p0", "lessThanOrEqual": "r51p0", "versionType": "patch"}, {"status": "affected", "version": "r54p1", "lessThanOrEqual": "r54p2", "versionType": "patch"}], "defaultStatus": "unaffected"}, {"vendor": "Arm Ltd", "product": "Valhall GPU Kernel Driver", "versions": [{"status": "affected", "version": "r44p0", "lessThanOrEqual": "r49p5", "versionType": "patch"}, {"status": "affected", "version": "r50p0", "lessThanOrEqual": "r54p3", "changes": [{"at": "r56p0", "status": "unaffected"}], "versionType": "patch"}], "defaultStatus": "unaffected"}, {"vendor": "Arm Ltd", "product": "Arm 5th Gen GPU Architecture Kernel Driver", "versions": [{"status": "affected", "version": "r44p0", "lessThanOrEqual": "r49p5", "versionType": "patch"}, {"status": "affected", "version": "r50p0", "lessThanOrEqual": "r54p3", "versionType": "patch"}, {"status": "affected", "version": "r55p0", "versionType": "patch"}, {"status": "unaffected", "version": "r56p0", "versionType": "patch"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform valid GPU memory processing operations to access already freed memory.\n\n\n\nThis issue affects Bifrost GPU Kernel Driver: from r44p0 through r49p4, from r50p0 through r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r44p0 through r49p5, from r50p0 through r54p3; Arm 5th Gen GPU Architecture Kernel Driver: from r44p0 through r49p5, from r50p0 through r54p3, r55p0.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform valid GPU memory processing operations to access already freed memory.</p><p>This issue affects Bifrost GPU Kernel Driver: from r44p0 through r49p4, from r50p0 through r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r44p0 through r49p5, from r50p0 through r54p3; Arm 5th Gen GPU Architecture Kernel Driver: from r44p0 through r49p5, from r50p0 through r54p3, r55p0.</p>"}]}], "references": [{"url": "https://support.arm.com/documentation/111552/1-0/?lang=en"}], "solutions": [{"lang": "en", "value": "This issue has been fixed in the following versions: Valhall GPU Kernel Driver: r56p0; Arm 5th Gen GPU Architecture Kernel Driver: r56p0. Arm partners are recommended to upgrade to the latest applicable version as soon as possible.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>This issue has been fixed in the following versions: Valhall GPU Kernel Driver: r56p0; Arm 5th Gen GPU Architecture Kernel Driver: r56p0. Arm partners are recommended to upgrade to the latest applicable version as soon as possible.</p>"}]}], "credits": [{"lang": "en", "value": "PhysicalLab (Kihyun Jeong, Yuchan Nam, Hyungjung Joo, Hojun Lee, Yunje Shin, Han Lee, seeh0)", "type": "finder"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Bifrost GPU Kernel Driver", "vendor": "Arm Ltd", "versions": [{"lessThanOrEqual": "r49p4", "status": "affected", "version": "r44p0", "versionType": "patch"}, {"lessThanOrEqual": "r51p0", "status": "affected", "version": "r50p0", "versionType": "patch"}, {"lessThanOrEqual": "r54p2", "status": "affected", "version": "r54p1", "versionType": "patch"}]}, {"defaultStatus": "unaffected", "product": "Valhall GPU Kernel Driver", "vendor": "Arm Ltd", "versions": [{"lessThanOrEqual": "r49p5", "status": "affected", "version": "r44p0", "versionType": "patch"}, {"changes": [{"at": "r56p0", "status": "unaffected"}], "lessThanOrEqual": "r54p3", "status": "affected", "version": "r50p0", "versionType": "patch"}]}, {"defaultStatus": "unaffected", "product": "Arm 5th Gen GPU Architecture Kernel Driver", "vendor": "Arm Ltd", "versions": [{"lessThanOrEqual": "r49p5", "status": "affected", "version": "r44p0", "versionType": "patch"}, {"lessThanOrEqual": "r54p3", "status": "affected", "version": "r50p0", "versionType": "patch"}, {"status": "affected", "version": "r55p0", "versionType": "patch"}, {"status": "unaffected", "version": "r56p0", "versionType": "patch"}]}], "source": "arm-security@arm.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform valid GPU memory processing operations to access already freed memory.\n\n\n\nThis issue affects Bifrost GPU Kernel Driver: from r44p0 through r49p4, from r50p0 through r51p0, from r54p1 through r54p2; Valhall GPU Kernel Driver: from r44p0 through r49p5, from r50p0 through r54p3; Arm 5th Gen GPU Architecture Kernel Driver: from r44p0 through r49p5, from r50p0 through r54p3, r55p0."}], "id": "CVE-2026-7477", "lastModified": "2026-09-08T15:24:07.790", "metrics": {}, "published": "2026-09-08T15:18:48.873", "references": [{"source": "arm-security@arm.com", "url": "https://support.arm.com/documentation/111552/1-0/?lang=en"}], "sourceIdentifier": "arm-security@arm.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "arm-security@arm.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[r44p0,r49p5]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[r50p0,r54p3]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[r55p0,r55p0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[r56p0,r56p0]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Arm 5th Gen GPU Architecture Kernel Driver", "source": "cna", "vendor": "Arm Ltd"}, "product": "5th_gen_gpu_architecture_kernel_driver", "vendor": "arm"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[r44p0,r49p4]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[r50p0,r51p0]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[r54p1,r54p2]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Bifrost GPU Kernel Driver", "source": "cna", "vendor": "Arm Ltd"}, "product": "bifrost_gpu_kernel_driver", "vendor": "arm"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[r44p0,r49p5]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[r50p0,r54p3]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[r56p0,r56p0]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Valhall GPU Kernel Driver", "source": "cna", "vendor": "Arm Ltd"}, "product": "valhall_gpu_kernel_driver", "vendor": "arm"}], "created": "2026-09-08T15:30:18.234650+00:00", "updated": "2026-09-08T17:15:17.628014+00:00", "vendors": ["arm", "arm$PRODUCT$5th_gen_gpu_architecture_kernel_driver", "arm$PRODUCT$bifrost_gpu_kernel_driver", "arm$PRODUCT$valhall_gpu_kernel_driver"]}