FreeBSD Security Advisory - Due to the interaction between devfs and VFS, a race condition exists where the kernel might dereference a NULL pointer.
4b21def402ce048506cd636e20e57f215a29c797ecd2817b7359d5b1e52ab3ef
FreeBSD version 7.2 VFS/devfs race condition local root exploit.
0962dc609b578253e7a0077ff12df2f5ca748f4130b4878e9ea7f88748d745d0