| From 5d963e809c6dcee4b6939a83155ce888494dd925 Mon Sep 17 00:00:00 2001 |
| From: Sasha Levin <sashal@kernel.org> |
| Date: Sun, 24 Jul 2022 14:33:52 -0400 |
| Subject: dm raid: fix address sanitizer warning in raid_resume |
| |
| From: Mikulas Patocka <mpatocka@redhat.com> |
| |
| [ Upstream commit 7dad24db59d2d2803576f2e3645728866a056dab ] |
| |
| There is a KASAN warning in raid_resume when running the lvm test |
| lvconvert-raid.sh. The reason for the warning is that mddev->raid_disks |
| is greater than rs->raid_disks, so the loop touches one entry beyond |
| the allocated length. |
| |
| Cc: stable@vger.kernel.org |
| Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> |
| Signed-off-by: Mike Snitzer <snitzer@kernel.org> |
| Signed-off-by: Sasha Levin <sashal@kernel.org> |
| --- |
| drivers/md/dm-raid.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c |
| index 4e7f870b2277..a55fc28d2a29 100644 |
| --- a/drivers/md/dm-raid.c |
| +++ b/drivers/md/dm-raid.c |
| @@ -3819,7 +3819,7 @@ static void attempt_restore_of_faulty_devices(struct raid_set *rs) |
| |
| memset(cleared_failed_devices, 0, sizeof(cleared_failed_devices)); |
| |
| - for (i = 0; i < mddev->raid_disks; i++) { |
| + for (i = 0; i < rs->raid_disks; i++) { |
| r = &rs->dev[i].rdev; |
| /* HM FIXME: enhance journal device recovery processing */ |
| if (test_bit(Journal, &r->flags)) |
| -- |
| 2.35.1 |
| |
