From 33f37c648812bdbe1bd1eea75ddab3e799d51e77 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Wed, 9 Oct 2019 22:48:01 -0400
Subject: [PATCH 1/2] shmem: fix LSM options parsing
->parse_monolithic() there forgets to call security_sb_eat_lsm_opts()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
mm/shmem.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/mm/shmem.c b/mm/shmem.c
index 0f7fd4a85db6..8dcc8d04cbaf 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -3482,6 +3482,12 @@ static int shmem_parse_options(struct fs_context *fc, void *data)
{
char *options = data;
+ if (options) {
+ int err = security_sb_eat_lsm_opts(options, &fc->security);
+ if (err)
+ return err;
+ }
+
while (options != NULL) {
char *this_char = options;
for (;;) {
From 6fcf0c72e4b9360768cf5ef543c4f14c34800ee8 Mon Sep 17 00:00:00 2001
From: Ian Kent <raven@themaw.net>
Date: Wed, 2 Oct 2019 17:56:33 +0800
Subject: [PATCH 2/2] vfs: add missing blkdev_put() in get_tree_bdev()
Is there are a couple of missing blkdev_put() in get_tree_bdev()?
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
fs/super.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/fs/super.c b/fs/super.c
index beaf076d9733..530dd13fa98b 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -1296,6 +1296,7 @@ int get_tree_bdev(struct fs_context *fc,
mutex_lock(&bdev->bd_fsfreeze_mutex);
if (bdev->bd_fsfreeze_count > 0) {
mutex_unlock(&bdev->bd_fsfreeze_mutex);
+ blkdev_put(bdev, mode);
warnf(fc, "%pg: Can't mount, blockdev is frozen", bdev);
return -EBUSY;
}
@@ -1304,8 +1305,10 @@ int get_tree_bdev(struct fs_context *fc,
fc->sget_key = bdev;
s = sget_fc(fc, test_bdev_super_fc, set_bdev_super_fc);
mutex_unlock(&bdev->bd_fsfreeze_mutex);
- if (IS_ERR(s))
+ if (IS_ERR(s)) {
+ blkdev_put(bdev, mode);
return PTR_ERR(s);
+ }
if (s->s_root) {
/* Don't summarily change the RO/RW state. */