CVE-2021-29266

medium
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
5.5

Description

An issue was discovered in the Linux kernel before 5.11.9. drivers/vhost/vdpa.c has a use-after-free because v->config_ctx has an invalid value upon re-opening a character device, aka CID-f6bbf0010ba0.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-29266

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2021-29266.html

OS impact

OSVersionStatusFixed in
arch archfixed5.10.26-1
suse slesaffected
debian debianbookwormfixed5.10.26-1
debian debianbullseyefixed5.10.26-1
debian debianforkyfixed5.10.26-1
debian debiansidfixed5.10.26-1
debian debiantrixiefixed5.10.26-1

References

Verify integrity in audit chain (admin only). AS-IS.