CVE-2022-49500

wl1251: dynamically allocate memory used for DMA

Description

In the Linux kernel, the following vulnerability has been resolved: wl1251: dynamically allocate memory used for DMA With introduction of vmap'ed stacks, stack parameters can no longer be used for DMA and now leads to kernel panic. It happens at several places for the wl1251 (e.g. when accessed through SDIO) making it unuseable on e.g. the OpenPandora. We solve this by allocating temporary buffers or use wl1251_read32(). Tested on v5.18-rc5 with OpenPandora.

N/A

CVSS

Severity:

EPSS 0.03%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/da03bbfbf5acd1ab0b074617e865ad1e8a5779ef
https://git.kernel.org/stable/c/454744754cbf2c21b3fc7344e46e10bee2768094

Frequently Asked Questions

What is the severity of CVE-2022-49500?: CVE-2022-49500 has not yet been assigned a CVSS score.
How to fix CVE-2022-49500?: To fix CVE-2022-49500, 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-2022-49500 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2022-49500 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-2022-49500?: CVE-2022-49500 affects Linux Linux, Linux Linux.

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