CVE-2023-53071

wifi: mt76: do not run mt76_unregister_device() on unregistered hw

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: do not run mt76_unregister_device() on unregistered hw Trying to probe a mt7921e pci card without firmware results in a successful probe where ieee80211_register_hw hasn't been called. When removing the driver, ieee802111_unregister_hw is called unconditionally leading to a kernel NULL pointer dereference. Fix the issue running mt76_unregister_device routine just for registered hw.

N/A

CVSS

Severity:

EPSS 0.02%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/dffe86df26aee01a5fc56a175b7a7f157961e370
https://git.kernel.org/stable/c/2d34f27714c97a9786a30b3bb54944d6d8ed612f
https://git.kernel.org/stable/c/41130c32f3a18fcc930316da17f3a5f3bc326aa1

Frequently Asked Questions

What is the severity of CVE-2023-53071?: CVE-2023-53071 has not yet been assigned a CVSS score.
How to fix CVE-2023-53071?: To fix CVE-2023-53071, 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-2023-53071 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2023-53071 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-2023-53071?: CVE-2023-53071 affects Linux Linux, Linux Linux.

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