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md: One use-after-free bugfix for RAID1

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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.
This commit is contained in:
Linus Torvalds 2012-07-13 17:59:33 -07:00
commit fdb1335a82
1 changed files with 2 additions and 1 deletions
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3
drivers/md/raid1.c
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@ -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);
}