CVE-2022-50229

HIGH EPSS 9.9%
Published Jun 18, 20251y ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Jun 18, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

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().

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
9.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥3.16  –  <4.9.326
linuxlinux_kernel*≥4.10  –  <4.14.291
linuxlinux_kernel*≥4.15  –  <4.19.256
linuxlinux_kernel*≥4.20  –  <5.4.211
linuxlinux_kernel*≥5.5  –  <5.10.137
linuxlinux_kernel*≥5.11  –  <5.15.61
linuxlinux_kernel*≥5.16  –  <5.18.18
linuxlinux_kernel*≥5.19  –  <5.19.2

References 9

  • git.kernel.org https://git.kernel.org/stable/c/05e0bb8c3c4dde3e21b9c1cf9395afb04e8b24db
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1d6a246cf97c380f2da76591f03019dd9c9599c3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/348620464a5c127399ac09b266f494f393661952
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4fc41f7ebb7efca282f1740ea934d16f33c1d109
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5e7338f4dd92b2f8915a82abfa1dd3ad3464bea0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/64ca7f50ad96c2c65ae390b954925a36eabe04aa
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a718eba7e458e2f40531be3c6b6a0028ca7fcace
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b0d4af0a4763ddc02344789ef2a281c494bc330d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ffb2759df7efbc00187bfd9d1072434a13a54139
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/05e0bb8c3c4dde3e21b9c1cf9395afb04e8b24db
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1d6a246cf97c380f2da76591f03019dd9c9599c3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/348620464a5c127399ac09b266f494f393661952
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4fc41f7ebb7efca282f1740ea934d16f33c1d109
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5e7338f4dd92b2f8915a82abfa1dd3ad3464bea0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/64ca7f50ad96c2c65ae390b954925a36eabe04aa
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a718eba7e458e2f40531be3c6b6a0028ca7fcace
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b0d4af0a4763ddc02344789ef2a281c494bc330d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ffb2759df7efbc00187bfd9d1072434a13a54139
    Patch