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

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: redhat

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

Updated: 2022-08-14T18:12:08

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


Link: CVE-2021-4145

JSON object: View

cve-icon NVD Information

Status : Analyzed

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

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


Link: CVE-2021-4145

JSON object: View

cve-icon Redhat Information

No data.

CWE