{"schema":"threatline.record/2","record":{"id":"CVE-2026-93214","aliases":[],"summary":"usb: gadget: f_tcm: fix deadlock in usbg_make_tpg()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: f_tcm: fix deadlock in usbg_make_tpg()\n\nusbg_make_tpg() held dep_lock while calling\nconfigfs_depend_item_unlocked(), which acquires the configfs root\ninode lock when operating across subsystems. This creates a circular\nlock dependency with configfs_rmdir():\n\n  dep_lock -> configfs root inode lock -> su_mutex -> dep_lock\n\nIn usbg_make_tpg(), dep_lock only serialized the read of opts->ready,\nwhich is a monotonic flag that transitions from false to true exactly\nonce (in tcm_set_name()) and never reverts. Remove dep_lock from\nusbg_make_tpg() entirely and use READ_ONCE/WRITE_ONCE to access\nopts->ready locklessly instead.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93214","source_modified_at":"2026-10-19T09:07:26.196Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"4bb8548df632187d5db50878e71804af5f7c51ad","lessThan":"abad5daa41cf5d0a0a9cba0397d3a0e7f11e0277","status":"affected","versionType":"git"},{"version":"4bb8548df632187d5db50878e71804af5f7c51ad","lessThan":"3639438a4c83ffc2e564c8c010b92137c5d11cfa","status":"affected","versionType":"git"},{"version":"4bb8548df632187d5db50878e71804af5f7c51ad","lessThan":"78a14ea2284825055ab6c2a1f3489510f560f3a2","status":"affected","versionType":"git"},{"version":"4bb8548df632187d5db50878e71804af5f7c51ad","lessThan":"eef3e62f90d86c1c5651742f84ecc9db1814a893","status":"affected","versionType":"git"},{"version":"4bb8548df632187d5db50878e71804af5f7c51ad","lessThan":"f81a2da137b029a282b9bc64d2f267d242948659","status":"affected","versionType":"git"},{"version":"4bb8548df632187d5db50878e71804af5f7c51ad","lessThan":"6bcd9ee6ad6989d1d85a7459687e45b7ad7568d9","status":"affected","versionType":"git"},{"version":"4bb8548df632187d5db50878e71804af5f7c51ad","lessThan":"d90b0f90e30cd59b36005a4016b15cf02bcd7fb2","status":"affected","versionType":"git"},{"version":"4bb8548df632187d5db50878e71804af5f7c51ad","lessThan":"9dbf74f4022f80f7669d2b3c22c5deb46c1b5674","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93214","source_modified_at":"2026-10-19T09:07:26.196Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"4.5","status":"affected"},{"version":"0","lessThan":"4.5","status":"unaffected","versionType":"semver"},{"version":"5.10.270","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.221","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.188","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.157","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.109","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.50","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.4","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93214","source_modified_at":"2026-10-19T09:07:26.196Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"3639438a4c83ffc2e564c8c010b92137c5d11cfa","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93214","source_modified_at":"2026-10-19T09:07:26.196Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"78a14ea2284825055ab6c2a1f3489510f560f3a2","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93214","source_modified_at":"2026-10-19T09:07:26.196Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"6bcd9ee6ad6989d1d85a7459687e45b7ad7568d9","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93214","source_modified_at":"2026-10-19T09:07:26.196Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"9dbf74f4022f80f7669d2b3c22c5deb46c1b5674","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00176,"percentile":0.06835,"score_date":"2026-10-23"},"published_at":"2026-09-24T15:10:36.975Z","modified_at":"2026-10-19T09:07:26.196Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-93214","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:07:26.196Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-93214","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/abad5daa41cf5d0a0a9cba0397d3a0e7f11e0277"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/3639438a4c83ffc2e564c8c010b92137c5d11cfa"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/78a14ea2284825055ab6c2a1f3489510f560f3a2"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/eef3e62f90d86c1c5651742f84ecc9db1814a893"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/f81a2da137b029a282b9bc64d2f267d242948659"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/6bcd9ee6ad6989d1d85a7459687e45b7ad7568d9"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/d90b0f90e30cd59b36005a4016b15cf02bcd7fb2"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/9dbf74f4022f80f7669d2b3c22c5deb46c1b5674"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-19T09:07:26.196Z","content_hash":"36648b5d79758489f8d7000ad8429cdb28302b5654c3dfef854fe5ddc49195fc"}}