CVE-2022-50229

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

18/06/2025

Last modified:

19/11/2025

Description

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 &#39;bcd2k->midi_out_urb&#39; 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().

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	3.16 (including)	4.9.326 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.10 (including)	4.14.291 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.256 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.211 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.137 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.61 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	5.18.18 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.19 (including)	5.19.2 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2022-50229

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools