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. Reference and upstream patch: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f60a85cad677c4f9bb4cadd764f1d106c38c7cf8
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1945384]
FEDORA-2021-41fb54ae9f has been pushed to the Fedora 34 stable repository. If problem still persists, please make note of it in this bug report.
FEDORA-2021-6b0f287b8b has been pushed to the Fedora 32 stable repository. If problem still persists, please make note of it in this bug report.
FEDORA-2021-2306e89112 has been pushed to the Fedora 33 stable repository. If problem still persists, please make note of it in this bug report.
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2021-29649