isdn/capi: prevent NULL pointer dereference on invalid CAPI command

Browse source

An invalid CAPI 2.0 command/subcommand combination may retrieve a
NULL pointer from the cpars[] array which will later be dereferenced
by the parser routines.
Fix by adding NULL pointer checks in strategic places.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

Tilman Schmidt 2014-10-11 13:46:30 +02:00 • committed by David S. Miller

parent 854d23b77a

commit 5510ab1804

1 changed files with 7 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

7

drivers/isdn/capi/capiutil.c

View file