Package: diffutils Version: 1:3.5-3 Severity: important Dear Maintainer, after upgrading to Stretch, cmp -b output is wrong - if the files are different, the first different byte is always printed as 12 ^J. This is a major bug in such a simple utility. cmp -b -l works correctly.
$ echo 1 >one $ echo 2 >two $ cmp -b one two one two differ: byte 1, line 1 is 12 ^J 62 2 $ cmp -b -l one two 1 61 1 62 2 It's OK in Jessie or Wheezy: $ echo 1 > one $ echo 2 >two $ cmp -b one two one two differ: byte 1, line 1 is 61 1 62 2 $ cmp -b -l one two 1 61 1 62 2 Sometimes, the 2nd byte is messed up too: # cmp -b /root/random230m.bin /mnt/random230m.bin /root/random230m.bin /mnt/random230m.bin differ: byte 36882317, line 143981 is 12 ^J 333 M-[ # cmp -b /root/random230m.bin /mnt/random230m.bin /root/random230m.bin /mnt/random230m.bin differ: byte 85995009, line 336284 is 12 ^J 327 M-W -- System Information: Debian Release: 9.0 APT prefers stable APT policy: (500, 'stable') Architecture: i386 (i686) Kernel: Linux 4.12.0-rc5+ (SMP w/1 CPU core) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: sysvinit (via /sbin/init) Versions of packages diffutils depends on: ii libc6 2.24-11+deb9u1 diffutils recommends no packages. Versions of packages diffutils suggests: pn diffutils-doc <none> pn wdiff <none> -- debconf-show failed
