CVE-2021-29649

Related Vulnerabilities: CVE-2021-29649  

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.

Description

The MITRE CVE dictionary describes this issue as:

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.

Additional Information

  • Bugzilla 1945379: CVE-2021-29649 kernel: memory leak in user mode driver due to lack of cleanup steps in kernel/usermode_driver.c and kernel/bpf/preload/bpf_preload_kern.c
  • CWE-459: Incomplete Cleanup
  • FAQ: Frequently asked questions about CVE-2021-29649