CVE-2022-50374
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-50374
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50374.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-50374
- Downstream
- Published
- 2025-09-17T15:15:36Z
- Modified
- 2025-09-18T13:43:34Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci{ldisc,serdev}: check percpuinit_rwsem() failure
syzbot is reporting NULL pointer dereference at hciuartttyclose() [1], for rcusyncenter() is called without rcusyncinit() due to hciuartttyopen() ignoring percpuinitrwsem() failure.
While we are at it, fix that hciuartregisterdevice() ignores percpuinitrwsem() failure and hciuartunregisterdevice() does not call percpufreerwsem().
- References
-
- https://git.kernel.org/stable/c/3124d320c22f3f4388d9ac5c8f37eaad0cefd6b1
- https://git.kernel.org/stable/c/75b2c71ea581c7bb1303860d89366a42ad0506d2
- https://git.kernel.org/stable/c/98ce10f3f345e61fc6c83bff9cd11cda252b05ac
- https://git.kernel.org/stable/c/b8917dce2134739b39bc0a5648b18427f2cad569
- https://git.kernel.org/stable/c/d7cc0d51ffcbfd1caaa809fcf9cff05c46d0fb4d