CVE-2021-29649: Fedoraproject Fedora

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Fedoraproject Fedora: version 32 only; version 33 only; version 34 only
• Linux Linux Kernel: before 5.11.11 (fixed in 5.11.11)

Published 2021-03-30. Last modified 2026-06-17.