CVE-2022-48879

Vulnerability ID

CVE-2022-48879

Severity

MEDIUM

Severity Score

5.5

Summary

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.

References

https://git.kernel.org/stable/c/585a0b2b3ae7903c6abee3087d09c69e955a7794

https://git.kernel.org/stable/c/5fcf75a8a4c3e7ee9122d143684083c9faf20452

https://git.kernel.org/stable/c/4ca71bc0e1995d15486cd7b60845602a28399cb5

https://git.kernel.org/stable/c/e2ea55564229e4bea1474af15b111b3a3043b76f

https://git.kernel.org/stable/c/adc96d30f6503d30dc68670c013716f1d9fcc747

https://git.kernel.org/stable/c/703c13fe3c9af557d312f5895ed6a5fda2711104

Mitigation and Patches

https://git.kernel.org/stable/c/585a0b2b3ae7903c6abee3087d09c69e955a7794

https://git.kernel.org/stable/c/5fcf75a8a4c3e7ee9122d143684083c9faf20452

https://git.kernel.org/stable/c/4ca71bc0e1995d15486cd7b60845602a28399cb5

https://git.kernel.org/stable/c/e2ea55564229e4bea1474af15b111b3a3043b76f