{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68102", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.368Z", "datePublished": "2026-08-10T11:58:18.093Z", "dateUpdated": "2026-08-10T11:58:18.093Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-10T11:58:18.093Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: fix aperture mapping leak\n\namdgpu_pci_remove() calls drm_dev_unplug() before invoking the driver\nfini routines. This causes drm_dev_enter() in amdgpu_ttm_fini() to\nalways return false, so iounmap(aper_base_kaddr) never runs on normal\ndriver unload, leaving an orphaned entry in the x86 PAT interval tree.\n\nOn connected_to_cpu hardware, the aperture is mapped write-back (WB) via\nioremap_cache(). On reload, IP discovery calls memremap(..., MEMREMAP_WC)\nover the same range. The WC vs WB conflict causes:\n\n ioremap error for 0x..., requested 0x1, got 0x0\n amdgpu: discovery failed: -2\n\nFix by switching to devres-managed mappings so cleanup is guaranteed\nregardless of drm_dev_enter() state:\n\n- connected_to_cpu path: devm_memremap(MEMREMAP_WB). For\n IORESOURCE_SYSTEM_RAM ranges this takes the try_ram_remap() shortcut,\n returning __va(offset) from the existing kernel direct map. No new\n ioremap VA or PAT entry is created, so there is nothing to orphan.\n\n- dGPU path: devm_ioremap_wc() registers iounmap() as a devres action,\n guaranteeing cleanup at device_del() time.\n\nAlso remove iounmap(aper_base_kaddr) from amdgpu_device_unmap_mmio()\nsince the mapping is now devres-owned.\n\nv2: Remove redundant x86_64 guard (Lijo)\n\n(cherry picked from commit d871e99879cb5fd1fa798b006b4888887e63a17a)"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/amd/amdgpu/amdgpu_device.c", "drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c"], "versions": [{"version": "9d0af8b4def0de6b734ec8db08e96da0458facb6", "lessThan": "67bc3647e418e23dc0d17604bdba634a73de809f", "status": "affected", "versionType": "git"}, {"version": "9d0af8b4def0de6b734ec8db08e96da0458facb6", "lessThan": "a343d028ad6c174da8dc6af560c51e6d140a6727", "status": "affected", "versionType": "git"}, {"version": "9d0af8b4def0de6b734ec8db08e96da0458facb6", "lessThan": "6405c4e75b3bcf0e72bd7a0ff5f1ed0c475e23aa", "status": "affected", "versionType": "git"}, {"version": "9d0af8b4def0de6b734ec8db08e96da0458facb6", "lessThan": "f5988b5c300a32ff751724ffd33d5a8d5873e4a7", "status": "affected", "versionType": "git"}, {"version": "9d0af8b4def0de6b734ec8db08e96da0458facb6", "lessThan": "ea772a440d56b285f4d491affac50ecd41f6b402", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/amd/amdgpu/amdgpu_device.c", "drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c"], "versions": [{"version": "5.13", "status": "affected"}, {"version": "0", "lessThan": "5.13", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.6.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.13", "versionEndExcluding": "7.2-rc2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/67bc3647e418e23dc0d17604bdba634a73de809f"}, {"url": "https://git.kernel.org/stable/c/a343d028ad6c174da8dc6af560c51e6d140a6727"}, {"url": "https://git.kernel.org/stable/c/6405c4e75b3bcf0e72bd7a0ff5f1ed0c475e23aa"}, {"url": "https://git.kernel.org/stable/c/f5988b5c300a32ff751724ffd33d5a8d5873e4a7"}, {"url": "https://git.kernel.org/stable/c/ea772a440d56b285f4d491affac50ecd41f6b402"}], "title": "drm/amdgpu: fix aperture mapping leak", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/amdgpu/amdgpu_device.c", "drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "67bc3647e418e23dc0d17604bdba634a73de809f", "status": "affected", "version": "9d0af8b4def0de6b734ec8db08e96da0458facb6", "versionType": "git"}, {"lessThan": "a343d028ad6c174da8dc6af560c51e6d140a6727", "status": "affected", "version": "9d0af8b4def0de6b734ec8db08e96da0458facb6", "versionType": "git"}, {"lessThan": "6405c4e75b3bcf0e72bd7a0ff5f1ed0c475e23aa", "status": "affected", "version": "9d0af8b4def0de6b734ec8db08e96da0458facb6", "versionType": "git"}, {"lessThan": "f5988b5c300a32ff751724ffd33d5a8d5873e4a7", "status": "affected", "version": "9d0af8b4def0de6b734ec8db08e96da0458facb6", "versionType": "git"}, {"lessThan": "ea772a440d56b285f4d491affac50ecd41f6b402", "status": "affected", "version": "9d0af8b4def0de6b734ec8db08e96da0458facb6", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/amdgpu/amdgpu_device.c", "drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.13"}, {"lessThan": "5.13", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.148", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.101", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.42", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2-rc2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: fix aperture mapping leak\n\namdgpu_pci_remove() calls drm_dev_unplug() before invoking the driver\nfini routines. This causes drm_dev_enter() in amdgpu_ttm_fini() to\nalways return false, so iounmap(aper_base_kaddr) never runs on normal\ndriver unload, leaving an orphaned entry in the x86 PAT interval tree.\n\nOn connected_to_cpu hardware, the aperture is mapped write-back (WB) via\nioremap_cache(). On reload, IP discovery calls memremap(..., MEMREMAP_WC)\nover the same range. The WC vs WB conflict causes:\n\n ioremap error for 0x..., requested 0x1, got 0x0\n amdgpu: discovery failed: -2\n\nFix by switching to devres-managed mappings so cleanup is guaranteed\nregardless of drm_dev_enter() state:\n\n- connected_to_cpu path: devm_memremap(MEMREMAP_WB). For\n IORESOURCE_SYSTEM_RAM ranges this takes the try_ram_remap() shortcut,\n returning __va(offset) from the existing kernel direct map. No new\n ioremap VA or PAT entry is created, so there is nothing to orphan.\n\n- dGPU path: devm_ioremap_wc() registers iounmap() as a devres action,\n guaranteeing cleanup at device_del() time.\n\nAlso remove iounmap(aper_base_kaddr) from amdgpu_device_unmap_mmio()\nsince the mapping is now devres-owned.\n\nv2: Remove redundant x86_64 guard (Lijo)\n\n(cherry picked from commit d871e99879cb5fd1fa798b006b4888887e63a17a)"}], "id": "CVE-2026-68102", "lastModified": "2026-08-10T13:19:54.840", "metrics": {}, "published": "2026-08-10T13:19:54.840", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6405c4e75b3bcf0e72bd7a0ff5f1ed0c475e23aa"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/67bc3647e418e23dc0d17604bdba634a73de809f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a343d028ad6c174da8dc6af560c51e6d140a6727"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ea772a440d56b285f4d491affac50ecd41f6b402"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f5988b5c300a32ff751724ffd33d5a8d5873e4a7"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}