diff options
| author | Mike Snitzer <snitzer@redhat.com> | 2011-08-02 12:32:00 +0100 |
|---|---|---|
| committer | Jonas ABERG <jonas.aberg@stericsson.com> | 2011-10-28 11:17:05 +0200 |
| commit | 0158f19075b7dc476401171e0c24c0c060da6aee (patch) | |
| tree | a372a6e6ac717b41be6e4ecd48d3e5f559d90f3a | |
| parent | e45beaf693e4d0923a28569f995dbacbf915265d (diff) | |
dm mpath: fix potential NULL pointer in feature arg processing
commit 286f367dad40beb3234a18c17391d03ba939a7f3 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Change-Id: Ibef3dfbf352c21d53f8af9c157c8e366725554ce
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/35679
Tested-by: Per VAHLNE <per.xx.vahlne@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
| -rw-r--r-- | drivers/md/dm-mpath.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index aa4e570c2cb..209991bebd3 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -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--; |