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THREATINT
PUBLISHED

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.

Reserved 2024-02-19 | Published 2024-05-01 | Updated 2025-05-04 | Assigner Linux

Product status

Default status
unaffected

3c8f5965a99397368d3762a9814a21a3e442e1a4 before 99e425032c6ec13584d3cd33846e0c7307501b47
affected

9e90e58c11b74c2bddac4b2702cf79d36b981278 before 35485dad6e28f9b17884764d4692b1655cb848d0
affected

9e90e58c11b74c2bddac4b2702cf79d36b981278 before 9e2d4b58c1da48a32905802aaeadba7084b46895
affected

9e90e58c11b74c2bddac4b2702cf79d36b981278 before 51c23bd691c0f1fb95b29731c356c6fd69925d17
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

git.kernel.org/...c/99e425032c6ec13584d3cd33846e0c7307501b47

git.kernel.org/...c/35485dad6e28f9b17884764d4692b1655cb848d0

git.kernel.org/...c/9e2d4b58c1da48a32905802aaeadba7084b46895

git.kernel.org/...c/51c23bd691c0f1fb95b29731c356c6fd69925d17

cve.org (CVE-2024-27067)

nvd.nist.gov (CVE-2024-27067)

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