Executive Summary

Informations
Name CVE-2022-50229 First vendor Publication 2025-06-18
Vendor Cve Last vendor Modification 2025-06-18

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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().

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-50229

Sources (Detail)

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

Alert History

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0
1
Date Informations
2025-06-18 21:20:33
  • Multiple Updates
2025-06-18 17:20:33
  • First insertion