CVE-2022-48879

efi: fix NULL-deref in init error path

Description

In the Linux kernel, the following vulnerability has been resolved: efi: fix NULL-deref in init error path In cases where runtime services are not supported or have been disabled, the runtime services workqueue will never have been allocated. Do not try to destroy the workqueue unconditionally in the unlikely event that EFI initialisation fails to avoid dereferencing a NULL pointer.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.05%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/585a0b2b3ae7903c6abee3087d09c69e955a7794 patch
https://git.kernel.org/stable/c/5fcf75a8a4c3e7ee9122d143684083c9faf20452 patch
https://git.kernel.org/stable/c/4ca71bc0e1995d15486cd7b60845602a28399cb5 patch
https://git.kernel.org/stable/c/e2ea55564229e4bea1474af15b111b3a3043b76f patch
https://git.kernel.org/stable/c/adc96d30f6503d30dc68670c013716f1d9fcc747 patch
https://git.kernel.org/stable/c/703c13fe3c9af557d312f5895ed6a5fda2711104 patch

Frequently Asked Questions

What is the severity of CVE-2022-48879?
CVE-2022-48879 has been scored as a medium severity vulnerability.
How to fix CVE-2022-48879?
To fix CVE-2022-48879, 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-2022-48879 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-48879 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-2022-48879?
CVE-2022-48879 affects Linux Linux, Linux Linux.
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