CVEs-PoC/2021/CVE-2021-46905.md

### [CVE-2021-46905](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-46905)
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### Description

In the Linux kernel, the following vulnerability has been resolved:net: hso: fix NULL-deref on disconnect regressionCommit 8a12f8836145 ("net: hso: fix null-ptr-deref during tty deviceunregistration") fixed the racy minor allocation reported by syzbot, butintroduced an unconditional NULL-pointer dereference on every disconnectinstead.Specifically, the serial device table must no longer be accessed afterthe minor has been released by hso_serial_tty_unregister().

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ARPSyndicate/cve-scores
- https://github.com/fkie-cad/nvd-json-data-feeds