CVE-2022-49881

wifi: cfg80211: fix memory leak in query_regdb_file()

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.01%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2022-49881?
CVE-2022-49881 has been scored as a medium severity vulnerability.
How to fix CVE-2022-49881?
To fix CVE-2022-49881, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-49881 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-49881 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-49881?
CVE-2022-49881 affects Linux Linux, Linux Linux.
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