CVE-2026-93214
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
usb: gadget: f_tcm: fix deadlock in usbg_make_tpg()
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4bb8548df632187d5db50878e71804af5f7c51ad | affected | git | abad5daa41cf5d0a0a9cba0397d3a0e7f11e0277 | Unavailable | None listed |
| 4bb8548df632187d5db50878e71804af5f7c51ad | affected | git | 3639438a4c83ffc2e564c8c010b92137c5d11cfa | Unavailable | None listed |
| 4bb8548df632187d5db50878e71804af5f7c51ad | affected | git | 78a14ea2284825055ab6c2a1f3489510f560f3a2 | Unavailable | None listed |
| 4bb8548df632187d5db50878e71804af5f7c51ad | affected | git | eef3e62f90d86c1c5651742f84ecc9db1814a893 | Unavailable | None listed |
| 4bb8548df632187d5db50878e71804af5f7c51ad | affected | git | f81a2da137b029a282b9bc64d2f267d242948659 | Unavailable | None listed |
| 4bb8548df632187d5db50878e71804af5f7c51ad | affected | git | 6bcd9ee6ad6989d1d85a7459687e45b7ad7568d9 | Unavailable | None listed |
| 4bb8548df632187d5db50878e71804af5f7c51ad | affected | git | d90b0f90e30cd59b36005a4016b15cf02bcd7fb2 | Unavailable | None listed |
| 4bb8548df632187d5db50878e71804af5f7c51ad | affected | git | 9dbf74f4022f80f7669d2b3c22c5deb46c1b5674 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.5 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.5 | Unavailable | None listed |
| 5.10.270 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.221 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.188 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.157 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.109 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.50 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.4 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |