linux-kernel - [PATCH 002 of 3] md: fix uninitialized use of mddev->recovery

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 27 May 2008 16:32:10 +1000
From:	NeilBrown <neilb@...e.de>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	<stable@...nel.org>
Subject: [PATCH 002 of 3] md: fix uninitialized use of mddev->recovery_wait


From: Dan Williams <dan.j.williams@...el.com>

If an array was created with --assume-clean we will oops when trying to set
->resync_max.

Fix this by initializing ->recovery_wait in mddev_find.

Cc: <stable@...nel.org>
Signed-off-by: Dan Williams <dan.j.williams@...el.com>
Signed-off-by: Neil Brown <neilb@...e.de>

### Diffstat output
 ./drivers/md/md.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff .prev/drivers/md/md.c ./drivers/md/md.c
--- .prev/drivers/md/md.c	2008-05-27 16:24:02.000000000 +1000
+++ ./drivers/md/md.c	2008-05-27 16:24:34.000000000 +1000
@@ -276,6 +276,7 @@ static mddev_t * mddev_find(dev_t unit)
 	atomic_set(&new->active, 1);
 	spin_lock_init(&new->write_lock);
 	init_waitqueue_head(&new->sb_wait);
+	init_waitqueue_head(&new->recovery_wait);
 	new->reshape_position = MaxSector;
 	new->resync_max = MaxSector;
 	new->level = LEVEL_NONE;
@@ -5665,7 +5666,6 @@ void md_do_sync(mddev_t *mddev)
 		window/2,(unsigned long long) max_sectors/2);
 
 	atomic_set(&mddev->recovery_active, 0);
-	init_waitqueue_head(&mddev->recovery_wait);
 	last_check = 0;
 
 	if (j>2) {
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/