CVE-2022-50229: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: ALSA: bcd2000: Fix a UAF bug on the error path of probing When the driver fails in snd_card_register() at probe time, it will free the 'bcd2k->midi_out_urb' before killing it, which may cause a UAF bug. The following log can reveal it: [ 50.727020] BUG: KASAN: use-after-free in bcd2000_input_complete+0x1f1/0x2e0 [snd_bcd2000] [ 50.727623] Read of size 8 at addr ffff88810fab0e88 by task swapper/4/0 [ 50.729530] Call Trace: [ 50.732899] bcd2000_input_complete+0x1f1/0x2e0 [snd_bcd2000] Fix this by adding usb_kill_urb() before usb_free_urb().

Affected products

• Linux Linux Kernel: from 3.16, before 4.9.326 (fixed in 4.9.326); from 4.10, before 4.14.291 (fixed in 4.14.291); from 4.15, before 4.19.256 (fixed in 4.19.256); from 4.20, before 5.4.211 (fixed in 5.4.211); from 5.5, before 5.10.137 (fixed in 5.10.137); from 5.11, before 5.15.61 (fixed in 5.15.61); …

Published 2025-06-18. Last modified 2026-06-17.