Commit 286f367d authored Aug 02, 2011 by Mike Snitzer Committed by Alasdair G Kergon Aug 02, 2011

dm mpath: fix potential NULL pointer in feature arg processing



Avoid dereferencing a NULL pointer if the number of feature arguments
supplied is fewer than indicated.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: stable@kernel.org

parent 762a80d9

drivers/md/dm-mpath.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -807,6 +807,11 @@ static int parse_features(struct arg_set as, struct multipath m)
		if (!argc)
		return 0;

		if (argc > as->argc) {
		ti->error = "not enough arguments for features";
		return -EINVAL;
		}

		do {
		param_name = shift(as);
		argc--;