An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. drivers/xen/events/events_base.c allows event-channel removal during the event-handling loop (a race condition). This can cause a use-after-free or NULL pointer dereference, as demonstrated by a dom0 crash via events for an in-reconfiguration paravirtualized device, aka CID-073d0552ead5.
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Status: PUBLISHED
Assigner: mitre
Published: 2020-10-22T20:32:49
Updated: 2024-08-04T16:18:45.560Z
Reserved: 2020-10-22T00:00:00
Link: CVE-2020-27675

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Status : Modified
Published: 2020-10-22T21:15:14.153
Modified: 2024-11-21T05:21:38.707
Link: CVE-2020-27675
