{"id":"CVE-2026-90009","revision":"24d26d1bf5524fb4bdb7446d7ec35d4e","records":[{"revision":"24d26d1bf5524fb4bdb7446d7ec35d4e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90009","aliases":[],"title":"scsi: bsg: Fix TOCTOU in io_uring passthrough command setup","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: bsg: Fix TOCTOU in io_uring passthrough command setup\n\nscsi_bsg_uring_cmd() reads bsg_uring_cmd from the shared mmap'd SQE.\nUserspace can change a field after we check it and before we use it.\nrequest_len is the sharp case: it can grow past sizeof(scmd->cmnd) after\nthe bound check and overflow scmd->cmnd in copy_from_user().\n\nREAD_ONCE() the SQE fields we check or use into locals before use.","state":0,"publishedAt":"2026-09-16T10:33:17.446+00:00","modifiedAt":"2026-10-19T08:56:23.13+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/scsi/scsi_bsg.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"7b6d3255e7f8c6df2d21504c47808e3ce84649ac\",\n                            \"lessThan\": \"f033530105aa73d82c121d54b57f358e4865d2f4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7b6d3255e7f8c6df2d21504c47808e3ce84649ac\",\n                            \"lessThan\": \"4b3c5965fca99f62d31c963294bd5b23cc488e97\",\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/scsi/scsi_bsg.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"7.1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"7.1\",\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":[{"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/f033530105aa73d82c121d54b57f358e4865d2f4","https://git.kernel.org/stable/c/4b3c5965fca99f62d31c963294bd5b23cc488e97"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90009","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90009","identifiers":["CVE-2026-90009"]},"retained":false,"historicalAffected":[]}],"coverage":[]}