| commit | b23d104f5577300cadd6351469cdaa3fb98b2a74 | |
| author | Jann Horn <jann@thejh.net> | |
| Sun, 19 Apr 2015 00:48:39 +0000 (19 02:48 +0200) | ||
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| Wed, 29 Apr 2015 08:23:47 +0000 (29 10:23 +0200) | ||
| tree | bc332bf6a9f2ee49a0b7b702272bab91b8be5935 | treesnapshot (tar.gz zip) |
| parent | 9fe9c37cec84924db46258b7c237d20038fe9c8d | commitdiff |
fs: take i_mutex during prepare_binprm for set[ug]id executables
commit 8b01fc86b9f425899f8a3a8fc1c47d73c2c20543 upstream.
This prevents a race between chown() and execve(), where chowning a
setuid-user binary to root would momentarily make the binary setuid
root.
This patch was mostly written by Linus Torvalds.
Signed-off-by: Jann Horn <jann@thejh.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 8b01fc86b9f425899f8a3a8fc1c47d73c2c20543 upstream.
This prevents a race between chown() and execve(), where chowning a
setuid-user binary to root would momentarily make the binary setuid
root.
This patch was mostly written by Linus Torvalds.
Signed-off-by: Jann Horn <jann@thejh.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| fs/exec.c | diffblobblamehistory |