{"id":"CVE-2023-53292","revision":"cea471800352496badd110c3a7f71bfc","records":[{"revision":"cea471800352496badd110c3a7f71bfc","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2023-53292","aliases":[],"title":"blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nblk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none\n\nAfter grabbing q->sysfs_lock, q->elevator may become NULL because of\nelevator switch.\n\nFix the NULL dereference on q->elevator by checking it with lock.","state":0,"publishedAt":"2025-09-16T08:11:24.583+00:00","modifiedAt":"2026-10-15T00:17:12.684+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                        \"block/blk-mq.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5fd7a84a09e640016fe106dd3e992f5210e23dc7\",\n                            \"lessThan\": \"988ddb77218d3975dd13dee7bb0e1fae098a9fdb\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5fd7a84a09e640016fe106dd3e992f5210e23dc7\",\n                            \"lessThan\": \"3e977386521b71471e66ec2ba82efdfcc456adf2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5fd7a84a09e640016fe106dd3e992f5210e23dc7\",\n                            \"lessThan\": \"245165658e1c9f95c0fecfe02b9b1ebd30a1198a\",\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                        \"block/blk-mq.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.19\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.19\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.175\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.4.7\",\n                            \"lessThanOrEqual\": \"6.4.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.5\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/988ddb77218d3975dd13dee7bb0e1fae098a9fdb","https://git.kernel.org/stable/c/3e977386521b71471e66ec2ba82efdfcc456adf2","https://git.kernel.org/stable/c/245165658e1c9f95c0fecfe02b9b1ebd30a1198a"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-53292","license":"CVE Program Terms of Use","key":"cve-program:CVE-2023-53292","identifiers":["CVE-2023-53292"]},"retained":false,"historicalAffected":[]}],"coverage":[]}