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Fitap
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Joined: 13 Mar 2011
Posts: 490
Location: Rosario, Argentina
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 Posted: Sun Mar 16, 2025 5:29 pm Post subject: Files permissions a bit weird |
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I don't know what could have happened, but I found many files with 777 permissions.
| Code: | sudo find /usr -perm 777 -exec ls -l {} \; | more
-rwxrwxrwx 1 root root 14352 mar 8 08:37 /usr/bin/unzip-mem
-rwxrwxrwx 1 root root 14272 mar 15 23:10 /usr/bin/ruby32
lrwxrwxrwx 1 root root 23 mar 7 09:12 /usr/bin/avr-ar -> /usr/libexec/gcc/avr/ar
-rwxrwxrwx 1 root root 41520 mar 3 21:50 /usr/bin/newuidmap
-rwxrwxrwx 1 root root 282720 mar 4 09:32 /usr/bin/cec-compliance
-rwxrwxrwx 1 root root 90 mar 3 23:39 /usr/bin/system-config-printer
-rwxrwxrwx 1 root root 88000 mar 3 22:47 /usr/bin/mdsearch
lrwxrwxrwx 1 root root 23 sep 17 2022 /usr/bin/dwp -> x86_64-pc-linux-gnu-dwp
lrwxrwxrwx 1 root root 15 mar 2 18:10 /usr/bin/sleep -> ../../bin/sleep
lrwxrwxrwx 1 root root 31 mar 9 20:52 /usr/bin/pybabel -> ../lib/python-exec/python-exec2
lrwxrwxrwx 1 root root 3 mar 3 02:39 /usr/bin/gtbl -> tbl
lrwxrwxrwx 1 root root 59 mar 2 17:48 /usr/bin/x86_64-pc-linux-gnu-cpp-14 -> /usr/x86_64-pc-linux-gnu/gcc-bin/14/x86_64-pc-linux-gnu-cpp
-rwxrwxrwx 1 root root 41742960 mar 15 22:51 /usr/bin/docker
-rwxrwxrwx 1 root root 2067576 mar 4 09:59 /usr/bin/recoll
lrwxrwxrwx 1 root root 45 mar 9 21:49 /usr/bin/arm-unknown-linux-gnueabi-ld -> /usr/libexec/gcc/arm-unknown-linux-gnueabi/ld
-rwxrwxrwx 1 root root 56 mar 8 13:27 /usr/bin/wine-vanilla-10.0
-rwxrwxrwx 1 root root 51216 mar 8 14:48 /usr/bin/pw-top
-rwxrwxrwx 1 root root 3665264 mar 8 14:37 /usr/bin/gimp-console-2.10
lrwxrwxrwx 1 root root 66 mar 2 19:30 /usr/bin/x86_64-pc-linux-gnu-gcc-ranlib -> /usr/x86_64-pc-linux-gnu/gcc-bin/14/x86_64-pc-linux-gnu-gcc-ranlib
-rwxrwxrwx 1 root root 34752 mar 3 13:55 /usr/bin/gst-transcoder-1.0
-rwxrwxrwx 1 root root 7562 mar 3 23:46 /usr/bin/gparted
lrwxrwxrwx 1 root root 45 mar 9 21:49 /usr/bin/arm-unknown-linux-gnueabi-nm -> /usr/libexec/gcc/arm-unknown-linux-gnueabi/nm
-rwxrwxrwx 1 root root 8242 mar 9 21:25 /usr/bin/mariadb-dumpslow
lrwxrwxrwx 1 root root 25 mar 3 23:34 /usr/bin/qmlscene5 -> ../lib64/qt5/bin/qmlscene
-rwxrwxrwx 1 root root 1763744 mar 8 10:51 /usr/bin/mpd
lrwxrwxrwx 1 root root 31 mar 3 03:39 /usr/bin/pytest -> ../lib/python-exec/python-exec2
lrwxrwxrwx 1 root root 31 mar 2 22:21 /usr/bin/versioneer -> ../lib/python-exec/python-exec2
-rwxrwxrwx 1 root root 1408144 mar 15 23:17 /usr/bin/upmpdcli
-rwxrwxrwx 1 root root 14352 mar 8 14:48 /usr/bin/pipewire
lrwxrwxrwx 1 root root 4 mar 15 23:16 /usr/bin/unzstd -> zstd
-rwxrwxrwx 1 root root 33311160 mar 8 11:57 /usr/bin/_eeschema.kiface
-rwxrwxrwx 1 root root 257 mar 3 23:12 /usr/bin/ps2pdf12
lrwxrwxrwx 1 root root 44 mar 2 22:35 /usr/bin/jvisualvm -> /usr/libexec/eselect-java/run-java-tool.bash
-rwxrwxrwx 1 root root 79593360 mar 15 22:52 /usr/bin/containerd
-rwxrwxrwx 1 root root 75792 mar 9 21:41 /usr/bin/ibus
lrwxrwxrwx 1 root root 6 mar 8 14:48 /usr/bin/pw-dsdplay -> pw-cat
-rwxrwxrwx 1 root root 80352 mar 4 10:18 /usr/bin/pinentry-curses
lrwxrwxrwx 1 root root 4 mar 8 15:01 /usr/bin/rgvim -> gvim
-rwxrwxrwx 1 root root 67 mar 8 13:57 /usr/bin/wine64-preloader-vanilla-9.0
-rwxrwxrwx 1 root root 2783432 mar 8 12:00 /usr/bin/mplayer
lrwxrwxrwx 1 root root 27 mar 7 09:12 /usr/bin/objdump -> x86_64-pc-linux-gnu-objdump
-rwxrwxrwx 1 root root 59 mar 8 13:57 /usr/bin/winedump-vanilla-9.0 |
| Code: | sudo find /usr -perm 777 | wc -l
472005 |
Someone ran with this issue ? |
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Hu
Administrator
Joined: 06 Mar 2007
Posts: 23748
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| Posted: Sun Mar 16, 2025 6:22 pm Post subject: |
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The symlinks are normal. Symbolic links don't have real permissions[1], and delegate to the permissions on the underlying object.
The non-symlinks look wrong. If I had to guess, someone turned loose a recursive chmod 777 on /usr or maybe even on /. Are there any files under /usr that are not mode 777 for you? What commands have been run with superuser privilege recently?
[1] Some kernel-created magic symlinks follow different rules, but that does not apply to the output shown. |
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Fitap
Guru
Joined: 13 Mar 2011
Posts: 490
Location: Rosario, Argentina
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| Posted: Sun Mar 16, 2025 7:12 pm Post subject: |
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Honestly, I didn't do anything.
I just recompiled the entire system on 3 pc's that I have.
I tell you that on all the pc's I found the same problem. |
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