[Bug 2125263] Re: cp -r /dev/urandom copies content
Launchpad Bug Tracker
2125263 at bugs.launchpad.net
Sun Sep 28 16:32:38 UTC 2025
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: rust-coreutils (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/2125263
Title:
cp -r /dev/urandom copies content
Status in coreutils-from package in Ubuntu:
Fix Released
Status in rust-coreutils package in Ubuntu:
Confirmed
Bug description:
The GNU cp command copies character devices as is if -r is specified:
```
# ls -l /dev/urandom
crw-rw-rw- 1 root root 1, 9 May 2 08:49 /dev/urandom
# gnucp -r /dev/urandom foo
# ls -l foo
crw-rw-r-- 1 root root 1, 9 Sep 20 15:38 foo
```
The uutils cp command tries to copy the content.
Ubuntu 25.10 with rust-coreutils 0.1.0+git20250813.4af2a84-0ubuntu7
Forwarded upstream: https://github.com/uutils/coreutils/issues/8679
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