Emma Thorpe
e9852e6c86
Build and publish container / build (pull_request) Successful in 15m16s
The umask handling added for group access cleared only the group bits and left owner and other to the environment. A container whose umask carries 0400 then produces mirror directories of mode 0300: writable and enterable, unreadable to the very run that created them, and unreadable to anything serving the share. Clear the owner read and execute bits from the umask as well. The `other` bits stay where the environment puts them, because whether the mirror is world-readable is a real policy question; being able to read a directory the process itself just created is not. Files were never exposed to this: mkstemp sets 0600 outright and copy2 takes the source file's mode, both ignoring the umask.