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path: root/drivers/md/raid1.c
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Diffstat (limited to 'drivers/md/raid1.c')
-rw-r--r--drivers/md/raid1.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 23d211969565..b920f9278013 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1837,6 +1837,10 @@ static int raid1_remove_disk(struct mddev *mddev, struct md_rdev *rdev)
struct r1conf *conf = mddev->private;
int err = 0;
int number = rdev->raid_disk;
+
+ if (unlikely(number >= conf->raid_disks))
+ goto abort;
+
struct raid1_info *p = conf->mirrors + number;
if (rdev != p->rdev)