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CVE-2021-3735
Published: Aug 26, 2022
Modified: Feb 28, 2025
PUBLISHED
Description
A deadlock issue was found in the AHCI controller device of QEMU. It occurs on a software reset (ahci_reset_port) while handling a host-to-device Register FIS (Frame Information Structure) packet from the guest. A privileged user inside the guest could use this flaw to hang the QEMU process on the host, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability.
| Vendor | Product | Versions |
|---|---|---|
n/a | QEMU | affected Not Known |
Weaknesses (CWE)
References
https://bugzilla.redhat.com/show_bug.cgi?id=1997184
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https://access.redhat.com/security/cve/CVE-2021-3735
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https://security-tracker.debian.org/tracker/CVE-2021-3735
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