CVE-2021-4145 | BDVDB-2026-168530 Detail

Description#

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.

Impact#

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Exploit#

History#

1. Version 12022-01-25Record published in the CVE List.
2. Version 22024-08-03Most recent update recorded in the CVE List.