cve/2021/CVE-2021-37159.md

### [CVE-2021-37159](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37159)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brightgreen)

### Description

hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.

### POC

#### Reference
- https://bugzilla.suse.com/show_bug.cgi?id=1188601
- https://www.oracle.com/security-alerts/cpujul2022.html

#### Github
- https://github.com/ARPSyndicate/cvemon
Update Sat May 25 21:48:12 CEST 2024 2024-05-25 21:48:12 +02:00			`### [CVE-2021-37159](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37159)`
			`![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)`
Update CVE list 2025-09-29 21:09 2025-09-29 21:09:30 +02:00			`![](https://img.shields.io/static/v1?label=Version&message=n%2Fa%20&color=brightgreen)`
			`![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brightgreen)`
Update Sat May 25 21:48:12 CEST 2024 2024-05-25 21:48:12 +02:00
			`### Description`

			`hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.`

			`### POC`

			`#### Reference`
			`- https://bugzilla.suse.com/show_bug.cgi?id=1188601`
			`- https://www.oracle.com/security-alerts/cpujul2022.html`

			`#### Github`
			`- https://github.com/ARPSyndicate/cvemon`