CVE-2021-29266

kernel: use-after-free in drivers/vhost/vdpa.c because v->config_ctx has an invalid value upon re-opening a character device

Loading…

Severity

Important

Red Hat Product Security

7.8

CVSS 3.1

Review impact separately from score.

Published · March 14, 2021

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel. An invalid value upon reopening a character device can cause a use-after-free memory corruption. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

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 3.1 · 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-416 · Use After Free