{"id":"CVE-2026-80728","state":"PUBLISHED","title":"Revert \"drm/amdgpu: fix aperture mapping leak\"","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"drm/amdgpu: fix aperture mapping leak\"\n\ndevres teardown is LIFO. The aperture devres node was registered after\nthe DRM device node, so devres_release_all() unmaps the aperture before\nthe DRM device release callback fires amdgpu_device_fini_sw(). IP\nsw_fini callbacks (e.g. vcn_v4_0_sw_fini) write to fw_shared through a\npointer derived from aper_base_kaddr, causing a kernel page fault on\nprobe failure / rollback:\n\n  BUG: unable to handle page fault ... PMD 0\n  RIP: vcn_v4_0_sw_fini+0x7b/0x170 [amdgpu]\n  Call Trace:\n    amdgpu_device_fini_sw\n    amdgpu_driver_release_kms\n    devm_drm_dev_init_release\n    devres_release_all\n\nThis reverts commit d871e99879cb5fd1fa798b006b4888887e63a17a.\n\n(cherry picked from commit 336e0cd576817ac64a4b394ca2b3680029f3e37f)","publishedAt":"2026-09-03T08:21:47.126Z","updatedAt":"2026-10-30T12:31:01.149Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"67bc3647e418e23dc0d17604bdba634a73de809f","status":"affected","lessThan":"7380f1bfe9d7ed3a4ca9d99a5c4df840fff9af2a","versionType":"git"},{"version":"a343d028ad6c174da8dc6af560c51e6d140a6727","status":"affected","lessThan":"96d26143882f9cb47dcc1f3dd4e26d047e53ab9b","versionType":"git"},{"version":"6405c4e75b3bcf0e72bd7a0ff5f1ed0c475e23aa","status":"affected","lessThan":"a2e326c52c4bcecc033cd3ca2733fdbe30fbf55d","versionType":"git"},{"version":"f5988b5c300a32ff751724ffd33d5a8d5873e4a7","status":"affected","lessThan":"496846a9411136eb9e86ad4f4e62d751bd1e1db5","versionType":"git"},{"version":"ea772a440d56b285f4d491affac50ecd41f6b402","status":"affected","lessThan":"b96c529cd2551b78316a4afa3237b2ed96ba03c8","versionType":"git"},{"version":"8cf4724ea4f23c438af87a6cd0582a3372d30da9","status":"affected","versionType":"git"},{"version":"6.1.191","status":"affected","lessThan":"6.2","versionType":"semver"}],"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"]},{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6.6.148","status":"affected","lessThan":"6.6.152","versionType":"semver"},{"version":"6.12.101","status":"affected","lessThan":"6.12.104","versionType":"semver"},{"version":"6.18.42","status":"affected","lessThan":"6.18.45","versionType":"semver"},{"version":"7.1.6","status":"affected","lessThan":"7.1.9","versionType":"semver"}],"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"]}],"references":["https://git.kernel.org/stable/c/7380f1bfe9d7ed3a4ca9d99a5c4df840fff9af2a","https://git.kernel.org/stable/c/96d26143882f9cb47dcc1f3dd4e26d047e53ab9b","https://git.kernel.org/stable/c/a2e326c52c4bcecc033cd3ca2733fdbe30fbf55d","https://git.kernel.org/stable/c/496846a9411136eb9e86ad4f4e62d751bd1e1db5","https://git.kernel.org/stable/c/b96c529cd2551b78316a4afa3237b2ed96ba03c8"],"weaknesses":[],"ingestedAt":"2026-10-30T12:50:04.827Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/80xxx/CVE-2026-80728.json","commit":"1f312381e38164a43607eebab851b151dd16861e","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80728","state":"PUBLISHED","datePublished":"2026-09-03T08:21:47.126Z","dateUpdated":"2026-10-30T12:31:01.149Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-26T14:34:25.789Z"},"containers":{"cna":{"title":"Revert \"drm/amdgpu: fix aperture mapping leak\"","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"drm/amdgpu: fix aperture mapping leak\"\n\ndevres teardown is LIFO. The aperture devres node was registered after\nthe DRM device node, so devres_release_all() unmaps the aperture before\nthe DRM device release callback fires amdgpu_device_fini_sw(). IP\nsw_fini callbacks (e.g. vcn_v4_0_sw_fini) write to fw_shared through a\npointer derived from aper_base_kaddr, causing a kernel page fault on\nprobe failure / rollback:\n\n  BUG: unable to handle page fault ... PMD 0\n  RIP: vcn_v4_0_sw_fini+0x7b/0x170 [amdgpu]\n  Call Trace:\n    amdgpu_device_fini_sw\n    amdgpu_driver_release_kms\n    devm_drm_dev_init_release\n    devres_release_all\n\nThis reverts commit d871e99879cb5fd1fa798b006b4888887e63a17a.\n\n(cherry picked from commit 336e0cd576817ac64a4b394ca2b3680029f3e37f)"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"67bc3647e418e23dc0d17604bdba634a73de809f","status":"affected","lessThan":"7380f1bfe9d7ed3a4ca9d99a5c4df840fff9af2a","versionType":"git"},{"version":"a343d028ad6c174da8dc6af560c51e6d140a6727","status":"affected","lessThan":"96d26143882f9cb47dcc1f3dd4e26d047e53ab9b","versionType":"git"},{"version":"6405c4e75b3bcf0e72bd7a0ff5f1ed0c475e23aa","status":"affected","lessThan":"a2e326c52c4bcecc033cd3ca2733fdbe30fbf55d","versionType":"git"},{"version":"f5988b5c300a32ff751724ffd33d5a8d5873e4a7","status":"affected","lessThan":"496846a9411136eb9e86ad4f4e62d751bd1e1db5","versionType":"git"},{"version":"ea772a440d56b285f4d491affac50ecd41f6b402","status":"affected","lessThan":"b96c529cd2551b78316a4afa3237b2ed96ba03c8","versionType":"git"},{"version":"8cf4724ea4f23c438af87a6cd0582a3372d30da9","status":"affected","versionType":"git"},{"version":"6.1.191","status":"affected","lessThan":"6.2","versionType":"semver"}],"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"]},{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6.6.148","status":"affected","lessThan":"6.6.152","versionType":"semver"},{"version":"6.12.101","status":"affected","lessThan":"6.12.104","versionType":"semver"},{"version":"6.18.42","status":"affected","lessThan":"6.18.45","versionType":"semver"},{"version":"7.1.6","status":"affected","lessThan":"7.1.9","versionType":"semver"}],"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"]}],"references":[{"url":"https://git.kernel.org/stable/c/7380f1bfe9d7ed3a4ca9d99a5c4df840fff9af2a"},{"url":"https://git.kernel.org/stable/c/96d26143882f9cb47dcc1f3dd4e26d047e53ab9b"},{"url":"https://git.kernel.org/stable/c/a2e326c52c4bcecc033cd3ca2733fdbe30fbf55d"},{"url":"https://git.kernel.org/stable/c/496846a9411136eb9e86ad4f4e62d751bd1e1db5"},{"url":"https://git.kernel.org/stable/c/b96c529cd2551b78316a4afa3237b2ed96ba03c8"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:31:01.149Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.148","versionEndExcluding":"6.6.152"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12.101","versionEndExcluding":"6.12.104"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18.42","versionEndExcluding":"6.18.45"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.1.6","versionEndExcluding":"7.1.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.191"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}