CVE-2026-89828

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89828", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.769Z", "datePublished": "2026-09-16T10:31:00.827Z", "dateUpdated": "2026-10-19T08:53:21.989Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:53:21.989Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Fix init ordering in amdgpu_vram_mgr_init()\n\ndrmm_cgroup_register_region() is called before INIT_LIST_HEAD() and\ngpu_buddy_init() in amdgpu_vram_mgr_init(). If it fails, the function\nreturns early and bypasses those initializations.\n\nSince adev->mman.initialized is set to true before amdgpu_vram_mgr_init()\nis called, a failure triggers amdgpu_ttm_fini(), which calls\namdgpu_vram_mgr_fini(), which then:\n\n - Calls list_for_each_entry_safe() on reservations_pending and\n reserved_pages, whose list_head::next pointers are zero-initialized\n (NULL). The loop does not recognize them as empty and dereferences NULL.\n\n - Calls gpu_buddy_fini(), which iterates free_trees[] unconditionally\n via for_each_free_tree(). Since mm->free_trees is NULL\n (never allocated), this dereferences NULL.\n\nBoth result in a kernel panic on the module load error path.\n\nFix by moving drmm_cgroup_register_region() to after the list and buddy\nallocator are fully initialized, so the teardown path is safe to run."}], "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_vram_mgr.c"], "versions": [{"version": "2b624a2c18656ea32e0849e7bc0018ba3c97ca64", "lessThan": "e184e46ca1ba652ab8053a10a51b39aad06d3f5c", "status": "affected", "versionType": "git"}, {"version": "2b624a2c18656ea32e0849e7bc0018ba3c97ca64", "lessThan": "3e234c6face8651045f46895dfe9c086ea64f03b", "status": "affected", "versionType": "git"}, {"version": "2b624a2c18656ea32e0849e7bc0018ba3c97ca64", "lessThan": "e773798e14ac0aea54ca9676083b91f445e5bc59", "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_vram_mgr.c"], "versions": [{"version": "6.14", "status": "affected"}, {"version": "0", "lessThan": "6.14", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.51", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.5", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "6.14", "versionEndExcluding": "6.18.51"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14", "versionEndExcluding": "7.2.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/e184e46ca1ba652ab8053a10a51b39aad06d3f5c"}, {"url": "https://git.kernel.org/stable/c/3e234c6face8651045f46895dfe9c086ea64f03b"}, {"url": "https://git.kernel.org/stable/c/e773798e14ac0aea54ca9676083b91f445e5bc59"}], "title": "drm/amdgpu: Fix init ordering in amdgpu_vram_mgr_init()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "e184e46ca1ba652ab8053a10a51b39aad06d3f5c", "status": "affected", "version": "2b624a2c18656ea32e0849e7bc0018ba3c97ca64", "versionType": "git"}, {"lessThan": "3e234c6face8651045f46895dfe9c086ea64f03b", "status": "affected", "version": "2b624a2c18656ea32e0849e7bc0018ba3c97ca64", "versionType": "git"}, {"lessThan": "e773798e14ac0aea54ca9676083b91f445e5bc59", "status": "affected", "version": "2b624a2c18656ea32e0849e7bc0018ba3c97ca64", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.14"}, {"lessThan": "6.14", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.51", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "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 init ordering in amdgpu_vram_mgr_init()\n\ndrmm_cgroup_register_region() is called before INIT_LIST_HEAD() and\ngpu_buddy_init() in amdgpu_vram_mgr_init(). If it fails, the function\nreturns early and bypasses those initializations.\n\nSince adev->mman.initialized is set to true before amdgpu_vram_mgr_init()\nis called, a failure triggers amdgpu_ttm_fini(), which calls\namdgpu_vram_mgr_fini(), which then:\n\n - Calls list_for_each_entry_safe() on reservations_pending and\n reserved_pages, whose list_head::next pointers are zero-initialized\n (NULL). The loop does not recognize them as empty and dereferences NULL.\n\n - Calls gpu_buddy_fini(), which iterates free_trees[] unconditionally\n via for_each_free_tree(). Since mm->free_trees is NULL\n (never allocated), this dereferences NULL.\n\nBoth result in a kernel panic on the module load error path.\n\nFix by moving drmm_cgroup_register_region() to after the list and buddy\nallocator are fully initialized, so the teardown path is safe to run."}], "id": "CVE-2026-89828", "lastModified": "2026-10-19T09:18:26.770", "metrics": {}, "published": "2026-09-16T11:16:49.493", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3e234c6face8651045f46895dfe9c086ea64f03b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e184e46ca1ba652ab8053a10a51b39aad06d3f5c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e773798e14ac0aea54ca9676083b91f445e5bc59"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b624a2c18656ea32e0849e7bc0018ba3c97ca64,e184e46ca1ba652ab8053a10a51b39aad06d3f5c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b624a2c18656ea32e0849e7bc0018ba3c97ca64,3e234c6face8651045f46895dfe9c086ea64f03b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2b624a2c18656ea32e0849e7bc0018ba3c97ca64,e773798e14ac0aea54ca9676083b91f445e5bc59)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.14"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.14)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.51,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.5,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-17T06:00:08.803437+00:00", "updated": "2026-09-18T09:45:06.368089+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-665", "CWE-476"]}