diff mbox series

[1/2] fuse: ensure submount_lookup is initialized on alloc

Message ID d80c0df75fc601ffd3f957084574f10abaf3bedc.1699564053.git.kjlx@templeofstupid.com
State New
Headers show
Series Fuse submount_lookup needs to be initialized | expand

Commit Message

Krister Johansen Nov. 9, 2023, 10:37 p.m. UTC 
When introduced, the submount lookup reference tracking neglected to set
an initial value in the fuse inode as part of fuse_inode_alloc.  Users
running with SLUB_DEBUG enabled caught and reported this error.  Fix by
ensuring that this value is always initialized to NULL.

Signed-off-by: Krister Johansen <kjlx@templeofstupid.com>
Cc: stable@vger.kernel.org
Fixes: 513dfacefd71 ("fuse: share lookup state between submount and its parent")
---
 fs/fuse/inode.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 243bda3cfdf6..d7ebc322e55b 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -103,6 +103,7 @@  static struct inode *fuse_alloc_inode(struct super_block *sb)
 	fi->state = 0;
 	mutex_init(&fi->mutex);
 	spin_lock_init(&fi->lock);
+	fi->submount_lookup = NULL;
 	fi->forget = fuse_alloc_forget();
 	if (!fi->forget)
 		goto out_free;