CVE-2026-93214

CVE CVE-2026-93214EUVD EUVD-2026-85943Published 2026-09-24T15:10:36.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_tcm: fix deadlock in usbg_make_tpg() usbg_make_tpg() held dep_lock while calling configfs_depend_item_unlocked(), which acquires the configfs root inode lock when operating across subsystems. This creates a circular lock dependency with configfs_rmdir(): dep_lock -> configfs root inode lock -> su_mutex -> dep_lock In usbg_make_tpg(), dep_lock only serialized the read of opts->ready, which is a monotonic flag that transitions from false to true exactly once (in tcm_set_name()) and never reverts. Remove dep_lock from usbg_make_tpg() entirely and use READ_ONCE/WRITE_ONCE to access opts->ready locklessly instead.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 4bb8548df632187d5db50878e71804af5f7c51ad <78a14ea2284825055ab6c2a1f3489510f560f3a2; 4bb8548df632187d5db50878e71804af5f7c51ad <f81a2da137b029a282b9bc64d2f267d242948659; patch: 5.10.270; patch: 6.18.50; patch: 7.3-rc1; 4.5; 4bb8548df632187d5db50878e71804af5f7c51ad <3639438a4c83ffc2e564c8c010b92137c5d11cfa; 4bb8548df632187d5db50878e71804af5f7c51ad <d90b0f90e30cd59b36005a4016b15cf02bcd7fb2; 4bb8548df632187d5db50878e71804af5f7c51ad <9dbf74f4022f80f7669d2b3c22c5deb46c1b5674; patch: 5.15.221; 4bb8548df632187d5db50878e71804af5f7c51ad <6bcd9ee6ad6989d1d85a7459687e45b7ad7568d9; patch: 7.2.4; 4bb8548df632187d5db50878e71804af5f7c51ad <abad5daa41cf5d0a0a9cba0397d3a0e7f11e0277; 4bb8548df632187d5db50878e71804af5f7c51ad <eef3e62f90d86c1c5651742f84ecc9db1814a893; patch: 6.6.157; patch: 6.1.188; patch: 6.12.109; patch: 0

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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