From b2916f251404433aa1eafd36cdb9e19a692f2269 Mon Sep 17 00:00:00 2001 From: Jes Sorensen Date: Tue, 1 Nov 2011 16:09:34 +0100 Subject: [PATCH] validate_geometry_imsm_volume(): Avoid NULL pointer dereference Signed-off-by: Jes Sorensen Signed-off-by: NeilBrown --- super-intel.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/super-intel.c b/super-intel.c index 34a4b343..0193fe7f 100644 --- a/super-intel.c +++ b/super-intel.c @@ -5139,7 +5139,7 @@ static int validate_geometry_imsm_volume(struct supertype *st, int level, { struct stat stb; struct intel_super *super = st->sb; - struct imsm_super *mpb = super->anchor; + struct imsm_super *mpb; struct dl *dl; unsigned long long pos = 0; unsigned long long maxsize; @@ -5150,6 +5150,8 @@ static int validate_geometry_imsm_volume(struct supertype *st, int level, if (!super) return 0; + mpb = super->anchor; + if (mpb->num_raid_devs > 0 && mpb->num_disks != raiddisks) { fprintf(stderr, Name ": the option-rom requires all " "member disks to be a member of all volumes.\n"); -- 2.39.2