https://bugzilla.kernel.org/show_bug.cgi?id=60676 Bug ID: 60676 Summary: Stat system call gives permission denied to root for links under a sticky bit Product: File System Version: 2.5 Kernel Version: 3.5.0 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: ext4 Assignee: fs_ext4@xxxxxxxxxxxxxxxxxxxx Reporter: jck@xxxxxxxxx Regression: No If a directory has a sticky bit set, root cannot use anything that makes the stat system call on any of the links there. Example: > $ ls -ld /tmp/ > drwxrwxrwt 17 root root 4825088 Aug 1 10:50 /tmp/ > $ mkdir /tmp/testdir > $ touch /tmp/testdir/testfile > $ ln -s /tmp/testdir/ /tmp/testlink > $ ls /tmp/testlink/ > testfile > $ su > # ls /tmp/testlink ls: cannot access /tmp/testlink: Permission denied > # ls /tmp/testdir > testfile I can see how having root blindly follow links in a sticky directory could be a bad idea, but this goes against the behavior described by the man pages. -- You are receiving this mail because: You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
