{"id":"CVE-2025-37906","revision":"4494b03d6fc04a35a85f5b67471ca924","records":[{"revision":"4494b03d6fc04a35a85f5b67471ca924","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-37906","aliases":[],"title":"ublk: fix race between io_uring_cmd_complete_in_task and ublk_cancel_cmd","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nublk: fix race between io_uring_cmd_complete_in_task and ublk_cancel_cmd\n\nublk_cancel_cmd() calls io_uring_cmd_done() to complete uring_cmd, but\nwe may have scheduled task work via io_uring_cmd_complete_in_task() for\ndispatching request, then kernel crash can be triggered.\n\nFix it by not trying to canceling the command if ublk block request is\nstarted.","state":0,"publishedAt":"2025-05-20T15:21:39.633+00:00","modifiedAt":"2026-10-21T12:36:34.934+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/block/ublk_drv.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"216c8f5ef0f209a3797292c487bdaa6991ab4b92\",\n                            \"lessThan\": \"346b7d74c612234dae0878892682b9722e7c04c8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"216c8f5ef0f209a3797292c487bdaa6991ab4b92\",\n                            \"lessThan\": \"fb2eb9ddf556f93fef45201e1f9d2b8674bcc975\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"216c8f5ef0f209a3797292c487bdaa6991ab4b92\",\n                            \"lessThan\": \"f40139fde5278d81af3227444fd6e76a76b9506d\",\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/block/ublk_drv.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.7\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.7\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.114\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.14.6\",\n                            \"lessThanOrEqual\": \"6.14.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.15\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/346b7d74c612234dae0878892682b9722e7c04c8","https://git.kernel.org/stable/c/fb2eb9ddf556f93fef45201e1f9d2b8674bcc975","https://git.kernel.org/stable/c/f40139fde5278d81af3227444fd6e76a76b9506d"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-37906","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-37906","identifiers":["CVE-2025-37906"]},"retained":false,"historicalAffected":[]}],"coverage":[]}