CVE-2016-6490

Qemu: virtio: infinite loop in virtqueue_pop

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Severity

Low

Red Hat Product Security

2.4

CVSS 3.0

Review impact separately from score.

Published · July 27, 2016

Updated · November 21, 2025

Description

The virtqueue_map_desc function in hw/virtio/virtio.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via a zero length for the descriptor buffer.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 2.4
CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

CVSS 2.0 · 2.3
AV:A/AC:M/Au:S/C:N/I:N/A:P

CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')