CVE-2021-29649

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

Description

An issue was discovered in the Linux kernel before 5.11.11. The user mode driver (UMD) has a copy_process() memory leak, related to a lack of cleanup steps in kernel/usermode_driver.c and kernel/bpf/preload/bpf_preload_kern.c, aka CID-f60a85cad677.

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-2021-29649

OS impact

OSVersionStatusFixed in
arch archfixed5.10.27-1
debian debianbookwormfixed5.10.28-1
debian debianbullseyefixed5.10.28-1
debian debianforkyfixed5.10.28-1
debian debiansidfixed5.10.28-1
debian debiantrixiefixed5.10.28-1

References

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