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PUBLISHED

CVE-2024-27067

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

Reserved:2024-02-19
Published:2024-05-01
Updated:2024-05-13

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.

Product status

Default status
unaffected

3c8f5965a993 before 99e425032c6e
affected

9e90e58c11b7 before 35485dad6e28
affected

9e90e58c11b7 before 9e2d4b58c1da
affected

9e90e58c11b7 before 51c23bd691c0
affected

Default status
affected

6.7
affected

Any version before 6.7
unaffected

6.6.23
unaffected

6.7.11
unaffected

6.8.2
unaffected

6.9
unaffected

References

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

cve.org CVE-2024-27067

nvd.nist.gov CVE-2024-27067

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