CVE-2022-49881

wifi: cfg80211: fix memory leak in query_regdb_file()

CVSS 5.5 MEDIUMEPSS 0.2%CWE-401

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.5EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

01 May 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

Linux · Linux

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References

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