CVE-2019-20794 | BDVDB-2026-135739 Detail

Description#

An issue was discovered in the Linux kernel 4.18 through 5.6.11 when unprivileged user namespaces are allowed. A user can create their own PID namespace, and mount a FUSE filesystem. Upon interaction with this FUSE filesystem, if the userspace component is terminated via a kill of the PID namespace's pid 1, it will result in a hung task, and resources being permanently locked up until system reboot. This can result in resource exhaustion.

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Exploit#

History#

1. Version 12020-05-09Record published in the CVE List.
2. Version 22026-10-08Most recent update recorded in the CVE List.