Debian/linux: medium 6.4
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.
Action: Upgrade linux to 5.14.6-1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 5.14.6-1 | - |
Fixed versions
| 5.14.6-1 |
Sources
- osv: DEBIAN-CVE-2021-37159#Debian:13/linux
- https://security-tracker.debian.org/tracker/CVE-2021-37159
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