Public bug reported:
Trying to write into a fifo pipe inside /tmp (echo "hello" > /tmp/fifo)
whit normal permissions (drwxrwxrwt, sticky bit) and the fifo with prw-
rw-rw- permissions and with "other" user than user and group owner ends
in this error: bash: /tmp/fifo: Permission denied. It occurs since
upgrading to Ubuntu 20.04, in 19.04 it worked as expected. When I remove
the sticky bit (drwxrwxrwx) from tmp it works normally. I think it is a
misbehaviour, with sticky bit you cannot rename or remove files inside
that folder, but could be able to write into them.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1875225
Title:
/tmp sticky bit do not permit writing fifo file inside
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1875225/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
