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.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

Configuration 1 [-]

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*

No data.

References
Link Providers
https://git.kernel.org/stable/c/0ede1a988299e95d54bd89551fd635980572e920 cve-icon cve-icon
https://git.kernel.org/stable/c/219446396786330937bcd382a7bc4ccd767383bc cve-icon cve-icon
https://git.kernel.org/stable/c/38c9fa2cc6bf4b6e1a74057aef8b5cffd23d3264 cve-icon cve-icon
https://git.kernel.org/stable/c/57b962e627ec0ae53d4d16d7bd1033e27e67677a cve-icon cve-icon
https://git.kernel.org/stable/c/e1e12180321f416d83444f2cdc9259e0f5093d35 cve-icon cve-icon
https://git.kernel.org/stable/c/e9b5a4566d5bc71cc901be50d1fa24da00613120 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025050154-CVE-2022-49881-3caa@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2022-49881 cve-icon
https://www.cve.org/CVERecord?id=CVE-2022-49881 cve-icon
History

Wed, 01 Oct 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 07 May 2025 13:45:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Weaknesses CWE-401
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel

Fri, 02 May 2025 14:00:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Thu, 01 May 2025 14:30:00 +0000

Type Values Removed Values Added
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.
Title wifi: cfg80211: fix memory leak in query_regdb_file()
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-05-01T14:10:28.610Z

Updated: 2025-10-01T16:10:57.930Z

Reserved: 2025-05-01T14:05:17.240Z

Link: CVE-2022-49881

cve-icon Vulnrichment

Updated: 2025-10-01T14:29:54.733Z

cve-icon NVD

Status : Modified

Published: 2025-05-01T15:16:13.077

Modified: 2025-10-01T17:15:36.307

Link: CVE-2022-49881

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-05-01T00:00:00Z

Links: CVE-2022-49881 - Bugzilla