{"id":"CVE-2026-98270","revision":"3a2c21f104e14ceda7c9a3db76149e38","records":[{"revision":"3a2c21f104e14ceda7c9a3db76149e38","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98270","aliases":[],"title":"drm/amdgpu: check ras and obj before dereference","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: check ras and obj before dereference\n\nnbio_v7_9_handle_ras_controller_intr_no_bifring() dereferences ras and obj\nwithout checking either for NULL. Both amdgpu_ras_get_context() and\namdgpu_ras_find_obj() can return NULL, e.g. during the window between\nadev->nbio.ras being set (early in amdgpu_ras_init(), by design, to\nenable the fatal-error interrupt as soon as possible) and the PCIE_BIF\nras object actually being created in RAS late_init. Any interrupt in that\nwindow crashes in hard-IRQ context.\n\nThis is analogous to commit d190b459b2a4 (\"drm/amdgpu: the warning\ndereferencing obj for nbio_v7_4\"), which fixed the same issue in the\nnbio_v7_4 handler.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.\n\n(cherry picked from commit c7071767a50a32ed727cf800ac84372429e3b4b3)","state":0,"publishedAt":"2026-10-06T08:45:32.506+00:00","modifiedAt":"2026-10-19T09:16:41.028+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"7692e1ee2446fd1940b5caa6e09779504a58881a\",\n                            \"lessThan\": \"b7c7f07a40037514f8e890aa00f8d7b196d680cf\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7692e1ee2446fd1940b5caa6e09779504a58881a\",\n                            \"lessThan\": \"fc5f845a291fc8175e6857cd6ad042818da192e8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7692e1ee2446fd1940b5caa6e09779504a58881a\",\n                            \"lessThan\": \"37583946d8751f8e285c467d770ac0b609b82a23\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7692e1ee2446fd1940b5caa6e09779504a58881a\",\n                            \"lessThan\": \"315c22712715491f0dfafdaf2c2b437540e68702\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7692e1ee2446fd1940b5caa6e09779504a58881a\",\n                            \"lessThan\": \"723d4dc628d764b19cf9efca14b82cca5ff020c9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.6\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.6\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.158\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.112\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.54\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.8\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/b7c7f07a40037514f8e890aa00f8d7b196d680cf","https://git.kernel.org/stable/c/fc5f845a291fc8175e6857cd6ad042818da192e8","https://git.kernel.org/stable/c/37583946d8751f8e285c467d770ac0b609b82a23","https://git.kernel.org/stable/c/315c22712715491f0dfafdaf2c2b437540e68702","https://git.kernel.org/stable/c/723d4dc628d764b19cf9efca14b82cca5ff020c9"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98270","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98270","identifiers":["CVE-2026-98270"]},"retained":false,"historicalAffected":[]}],"coverage":[]}