Guest triggered use-after-free in Linux xen-netback A malicious or buggy network PV frontend can force Linux netback to disable the interface and terminate the receive kernel thread associated with queue 0 in response to the frontend sending a malformed packet. Such kernel thread termination will lead to a use-after-free in Linux netback when the backend is destroyed, as the kernel thread associated with queue 0 will have already exited and thus the call to kthread_stop will be performed against a stale pointer.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: XEN
Published: 2021-06-29T11:30:53
Updated: 2024-08-03T21:47:33.196Z
Reserved: 2021-03-18T00:00:00
Link: CVE-2021-28691
Vulnrichment
No data.
NVD
Status : Modified
Published: 2021-06-29T12:15:08.543
Modified: 2024-11-21T06:00:09.150
Link: CVE-2021-28691
Redhat
No data.