On Sun, Oct 10, 2010 at 11:47:20AM +0200, Geert Uytterhoeven wrote:
The cheapest way to reproduce is to boot with init=/bin/sh, then mount /proc and have stat("/proc/2/exe", &st) called; if stat() returns 0, we are fscked. ??The critical part is between return from proc_exe_link() (we'll leave it via if (!mm) return -ENOENT;) to return from __do_follow_link() -> do_follow_link() -> link_path_walk().I booted 2.6.36-rc7-atari-00360-g0dd2e6a (my current private test kernel) with init=/bin/sh, mounted /proc, and tried for i in $(seq 1000); do stat /proc/2/exe; done a few times, but I didn't see any ida_remove messages. It cannot read the /proc/2/exe symlink, though. This is on aranym-0.9.9-1 from Ubuntu/amd64.
stat -L /proc/2/exec, otherwise you'll hit lstat() instead of stat(). And FWIW 0.9.10-1 squeeze/amd64 also triggers here... -- To unsubscribe from this list: send the line "unsubscribe linux-m68k" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
