A NULL pointer dereference issue was found in the block mirror layer of QEMU in versions prior to 6.2.0. The `self` pointer is dereferenced in mirror_wait_on_conflicts() without ensuring that it's not NULL. A malicious unprivileged user within the guest could use this flaw to crash the QEMU process on the host when writing data reaches the threshold of mirroring node.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2022-01-25T19:11:14

Updated: 2024-08-03T17:16:04.234Z

Reserved: 2021-12-21T00:00:00

Link: CVE-2021-4145

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2022-01-25T20:15:08.657

Modified: 2022-09-28T19:54:45.107

Link: CVE-2021-4145

cve-icon Redhat

Severity : Low

Publid Date: 2021-12-10T00:00:00Z

Links: CVE-2021-4145 - Bugzilla