GHSA-PMF6-RCX4-V53V mkfifo: permissions of an existing file are changed after FIFO creation fails

When mkfifo fails e.g. target already exists, the code shows an error but is missing a continue;, so it falls through to fs::setpermissions and changes the permissions of the pre-existing file to the default FIFO mode 0o666 & umask - 0644. $ touch secret; chmod 000 secret $ coreutils mkfifo secre...

kill: 'kill -1' parsed as PID -1, sending SIGTERM to all processes (system crash / DoS)

kill -1 is incorrectly parsed as a positional pid = -1; combined with the default SIGTERM this calls kill-1, SIGTERM, signaling nearly every process the caller can see. GNU kill recognizes -1/-9 as signals and reports "not enough arguments". $ kill -1 uutils: kill-1, SIGTERM - mass termination /...