CVE-2022-49881

MEDIUM EPSS 5.5%
Published May 1, 20251y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 1, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: fix memory leak in query_regdb_file() In the function query_regdb_file() the alpha2 parameter is duplicated using kmemdup() and subsequently freed in regdb_fw_cb(). However, request_firmware_nowait() can fail without calling regdb_fw_cb() and thus leak memory.

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
5.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-401

Affected Products 9

VendorProductVersionRange
linuxlinux_kernel*≥4.15  –  <4.19.267
linuxlinux_kernel*≥4.20  –  <5.4.225
linuxlinux_kernel*≥5.5  –  <5.10.155
linuxlinux_kernel*≥5.11  –  <5.15.79
linuxlinux_kernel*≥5.16  –  <6.0.9
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any

References 6

  • git.kernel.org https://git.kernel.org/stable/c/0ede1a988299e95d54bd89551fd635980572e920
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/219446396786330937bcd382a7bc4ccd767383bc
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/38c9fa2cc6bf4b6e1a74057aef8b5cffd23d3264
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/57b962e627ec0ae53d4d16d7bd1033e27e67677a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e1e12180321f416d83444f2cdc9259e0f5093d35
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e9b5a4566d5bc71cc901be50d1fa24da00613120
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0ede1a988299e95d54bd89551fd635980572e920
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/219446396786330937bcd382a7bc4ccd767383bc
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/38c9fa2cc6bf4b6e1a74057aef8b5cffd23d3264
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/57b962e627ec0ae53d4d16d7bd1033e27e67677a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e1e12180321f416d83444f2cdc9259e0f5093d35
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e9b5a4566d5bc71cc901be50d1fa24da00613120
    Patch