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authorLinus Torvalds <torvalds@linux-foundation.org>2012-07-13 17:59:33 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-07-13 17:59:33 -0700
commitfdb1335a82ef1ef9442ac9377796e4e7a69d1ae4 (patch)
treee661a91753398208d338a089f45e00530475f721
parentd55e5bd0201a2af0182687882a92c5f95dbccc12 (diff)
parent2d4f4f3384d4ef4f7c571448e803a1ce721113d5 (diff)
Merge tag 'md-3.5-fixes' of git://neil.brown.name/md
Pull use-after-free RAID1 bugfix from NeilBrown. * tag 'md-3.5-fixes' of git://neil.brown.name/md: md/raid1: fix use-after-free bug in RAID1 data-check code.
-rw-r--r--drivers/md/raid1.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 8c2754f835ef..240ff3125040 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2485,9 +2485,10 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, int *skipp
*/
if (test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) {
atomic_set(&r1_bio->remaining, read_targets);
- for (i = 0; i < conf->raid_disks * 2; i++) {
+ for (i = 0; i < conf->raid_disks * 2 && read_targets; i++) {
bio = r1_bio->bios[i];
if (bio->bi_end_io == end_sync_read) {
+ read_targets--;
md_sync_acct(bio->bi_bdev, nr_sectors);
generic_make_request(bio);
}