CVE-2022-49881

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 v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

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::::::

History

07 May 2025, 13:21

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-05-01 15:16

Updated : 2025-10-01 17:15

NVD link : CVE-2022-49881

Mitre link : CVE-2022-49881

CVE.ORG link : CVE-2022-49881

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

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