CVE-2022-50400

MEDIUM EPSS 3.3%
Published Sep 18, 20259mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Sep 18, 2025 9mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: staging: greybus: audio_helper: remove unused and wrong debugfs usage In the greybus audio_helper code, the debugfs file for the dapm has the potential to be removed and memory will be leaked. There is also the very real potential for this code to remove ALL debugfs entries from the system, and it seems like this is what will really happen if this code ever runs. This all is very wrong as the greybus audio driver did not create this debugfs file, the sound core did and controls the lifespan of it. So remove all of the debugfs logic from the audio_helper code as there's no way it could be correct. If this really is needed, it can come back with a fixup for the incorrect usage of the debugfs_lookup() call which is what caused this to be noticed at all.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
3.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-401

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel* <5.10.150
linuxlinux_kernel*≥5.11  –  <5.15.75
linuxlinux_kernel*≥5.16  –  <5.19.17
linuxlinux_kernel*≥6.0  –  <6.0.3

References 5

  • git.kernel.org https://git.kernel.org/stable/c/4dab0d27a4211a27135a6899d6c737e6e0759a11
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5699afbff1fa2972722e863906c0320d55dd4d58
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d0febad83e29d85bb66e4f5cac0115b022403338
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d517cdeb904ddc0cbebcc959d43596426cac40b0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d835fa49d9589a780ff0d001bb7e6323238a4afb
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/4dab0d27a4211a27135a6899d6c737e6e0759a11
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5699afbff1fa2972722e863906c0320d55dd4d58
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d0febad83e29d85bb66e4f5cac0115b022403338
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d517cdeb904ddc0cbebcc959d43596426cac40b0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d835fa49d9589a780ff0d001bb7e6323238a4afb
    Patch