2.6.32-longterm review patch. If anyone has any objections, please let us know.
------------------
From: Mike Snitzer <snit...@redhat.com>
commit 286f367dad40beb3234a18c17391d03ba939a7f3 upstream.
Avoid dereferencing a NULL pointer if the number of feature arguments
supplied is fewer than indicated.
Signed-off-by: Mike Snitzer <snit...@redhat.com>
Signed-off-by: Alasdair G Kergon <a...@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gre...@suse.de>
---
drivers/md/dm-mpath.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -778,6 +778,11 @@ static int parse_features(struct arg_set
if (!argc)
return 0;
+ if (argc > as->argc) {
+ ti->error = "not enough arguments for features";
+ return -EINVAL;
+ }
+
do {
param_name = shift(as);
argc--;
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