CVE-2024-27067

xen/evtchn: avoid WARN() when unbinding an event channel

Description

In the Linux kernel, the following vulnerability has been resolved: xen/evtchn: avoid WARN() when unbinding an event channel When unbinding a user event channel, the related handler might be called a last time in case the kernel was built with CONFIG_DEBUG_SHIRQ. This might cause a WARN() in the handler. Avoid that by adding an "unbinding" flag to struct user_event which will short circuit the handler.

N/A

CVSS

Severity:

EPSS 0.13%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/99e425032c6ec13584d3cd33846e0c7307501b47
https://git.kernel.org/stable/c/35485dad6e28f9b17884764d4692b1655cb848d0
https://git.kernel.org/stable/c/9e2d4b58c1da48a32905802aaeadba7084b46895
https://git.kernel.org/stable/c/51c23bd691c0f1fb95b29731c356c6fd69925d17

Frequently Asked Questions

What is the severity of CVE-2024-27067?: CVE-2024-27067 has not yet been assigned a CVSS score.
How to fix CVE-2024-27067?: To fix CVE-2024-27067, 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-2024-27067 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2024-27067 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-2024-27067?: CVE-2024-27067 affects Linux Linux, Linux Linux.

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