{"id":"CVE-2026-89807","revision":"59d78479b3a843c7900a4ebe25832232","records":[{"revision":"59d78479b3a843c7900a4ebe25832232","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-89807","aliases":[],"title":"drm/amdkfd: guard against NULL restore_mqd in CRIU queue restore","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: guard against NULL restore_mqd in CRIU queue restore\n\nBoth create_queue_cpsch() and create_queue_nocpsch() unconditionally\ncall mqd_mgr->restore_mqd() when a CRIU restore is in progress\n(qd != NULL), with no NULL guard. On any system where restore_mqd is\nnot implemented for the given queue type, a user holding\nCAP_CHECKPOINT_RESTORE can trigger a kernel NULL pointer dereference\nand panic the machine by issuing KFD_IOC_CRIU_OP_RESTORE with a\ncrafted queue restore object. Note that checkpoint_mqd is likewise\nunimplemented on GFX12, so no legitimate CRIU image can reach this\npath — only a hand-crafted restore payload.\n\nAdd a NULL guard for restore_mqd immediately after mqd_mgr is\nresolved, unwinding via the existing error labels and returning\n-EOPNOTSUPP if the callback is not implemented. This mirrors the\nexisting checkpoint_mqd guard in checkpoint_mqd().","state":0,"publishedAt":"2026-09-16T10:30:40.572+00:00","modifiedAt":"2026-10-19T08:53:01.788+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/amdkfd/kfd_device_queue_manager.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"48f0bdf4e38e42b8285622cfcfc7e6e490b1a719\",\n                            \"lessThan\": \"19c73848493ab58e39649700da6de11710a36de1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"48f0bdf4e38e42b8285622cfcfc7e6e490b1a719\",\n                            \"lessThan\": \"ebffa44e7a21ead59ac4b4264e8fc2cbb44c4a21\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"48f0bdf4e38e42b8285622cfcfc7e6e490b1a719\",\n                            \"lessThan\": \"c643c229babe2e8efc5eefe60e19d44868a643ff\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"48f0bdf4e38e42b8285622cfcfc7e6e490b1a719\",\n                            \"lessThan\": \"6aa530642f95d5c48aa336416f94a35e7949b647\",\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/amdkfd/kfd_device_queue_manager.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.11\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.11\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.110\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.51\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.5\",\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/19c73848493ab58e39649700da6de11710a36de1","https://git.kernel.org/stable/c/ebffa44e7a21ead59ac4b4264e8fc2cbb44c4a21","https://git.kernel.org/stable/c/c643c229babe2e8efc5eefe60e19d44868a643ff","https://git.kernel.org/stable/c/6aa530642f95d5c48aa336416f94a35e7949b647"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89807","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-89807","identifiers":["CVE-2026-89807"]},"retained":false,"historicalAffected":[]}],"coverage":[]}