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| author | Mikulas Patocka <mpatocka@redhat.com> | 2022-07-24 21:33:52 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-25 12:18:14 +0300 |
| commit | 71f601c779b3cc1baf497796f5b922c3fe5d2a1e (patch) | |
| tree | 7453e7a7ad431d4abffe9c568af035b7aa544d1d | |
| parent | 2f2fa48c9f98f163be21952fccaf264a1ff51dd0 (diff) | |
| download | linux-71f601c779b3cc1baf497796f5b922c3fe5d2a1e.tar.xz | |
dm raid: fix address sanitizer warning in raid_resume
commit 7dad24db59d2d2803576f2e3645728866a056dab upstream.
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/md/dm-raid.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index 42151c9fc6e5..1f2d591dacf6 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -3808,7 +3808,7 @@ 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)) |