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().

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/05e0bb8c3c4dde3e21b9c1cf9395afb04e8b24db cve-icon cve-icon
https://git.kernel.org/stable/c/1d6a246cf97c380f2da76591f03019dd9c9599c3 cve-icon cve-icon
https://git.kernel.org/stable/c/348620464a5c127399ac09b266f494f393661952 cve-icon cve-icon
https://git.kernel.org/stable/c/4fc41f7ebb7efca282f1740ea934d16f33c1d109 cve-icon cve-icon
https://git.kernel.org/stable/c/5e7338f4dd92b2f8915a82abfa1dd3ad3464bea0 cve-icon cve-icon
https://git.kernel.org/stable/c/64ca7f50ad96c2c65ae390b954925a36eabe04aa cve-icon cve-icon
https://git.kernel.org/stable/c/a718eba7e458e2f40531be3c6b6a0028ca7fcace cve-icon cve-icon
https://git.kernel.org/stable/c/b0d4af0a4763ddc02344789ef2a281c494bc330d cve-icon cve-icon
https://git.kernel.org/stable/c/ffb2759df7efbc00187bfd9d1072434a13a54139 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025061850-CVE-2022-50229-702e@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2022-50229 cve-icon
https://www.cve.org/CVERecord?id=CVE-2022-50229 cve-icon
History

Fri, 20 Jun 2025 14:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Moderate

Wed, 18 Jun 2025 11:15:00 +0000

Type Values Removed Values Added
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 '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().
Title ALSA: bcd2000: Fix a UAF bug on the error path of probing
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-06-18T11:04:06.069Z

Reserved: 2025-06-18T10:57:27.432Z

Link: CVE-2022-50229

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-06-18T11:15:53.967

Modified: 2025-06-18T13:47:40.833

Link: CVE-2022-50229

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-06-18T00:00:00Z

Links: CVE-2022-50229 - Bugzilla