CVS commit: src/sys/net

[Christoph Egger <cegger%netbsd.org@localhost>]

Module Name:    src
Committed By:   cegger
Date:           Sun May 17 11:34:21 UTC 2009

Modified Files:
        src/sys/net: if_bridge.c

Log Message:
fix crash in bridge_ioctl():

BRDGGFLT and BRDGSFILT bridge controls are only available with BRIDGE_IPF and 
PFIL_HOOKS defined.
In amd64 GENERIC and XEN kernel configs PFIL_HOOKS is defined but BRIDGE_IPF is 
not.

When a BRDGGFLT or BRDGSFILT command comes in, then ifd->ifd_cmd is not in range
of bridge_control_table_size. Then bc is not set and is dereferenced
later => BOOM.


To generate a diff of this commit:
cvs rdiff -u -r1.69 -r1.70 src/sys/net/if_bridge.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.