Linux · Linux Kernel · CVE-2024-50192
Name of the Vulnerable Software and Affected Versions:
Linux kernel (affected versions not specified)
Description:
A race condition in the Linux kernel's irqchip/gic-v4 component allows userspace to force a change of affinity for a VPE while it has already been unmapped, but the corresponding doorbell interrupt is still visible in /proc/irq/. The issue is resolved by checking the value of `vmapp count`, which tracks whether the VPE is mapped or not, and returning an error in this case. This fix involves making `vmapp count` common to both GICv4.1 and its v4.0 ancestor.
Recommendations:
At the moment, there is no information about a newer version that contains a fix for this vulnerability.