This is a note to let you know that I've just added the patch titled
btrfs: send: handle unexpected inode in header process_recorded_refs()
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
btrfs-send-handle-unexpected-inode-in-header-process.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 11aca56b46f527e5ac39c3d1f875bbcbfb70809d
Author: David Sterba <dsterba@xxxxxxxx>
Date: Tue Feb 6 22:47:13 2024 +0100
btrfs: send: handle unexpected inode in header process_recorded_refs()
[ Upstream commit 5d2288711ccc483feca73151c46ee835bda17839 ]
Change BUG_ON to proper error handling when an unexpected inode number
is encountered. As the comment says this should never happen.
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index b153f6a96fc8c..9da3c72eb6153 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -4195,7 +4195,13 @@ static int process_recorded_refs(struct send_ctx *sctx, int *pending_move)
* This should never happen as the root dir always has the same ref
* which is always '..'
*/
- BUG_ON(sctx->cur_ino <= BTRFS_FIRST_FREE_OBJECTID);
+ if (unlikely(sctx->cur_ino <= BTRFS_FIRST_FREE_OBJECTID)) {
+ btrfs_err(fs_info,
+ "send: unexpected inode %llu in process_recorded_refs()",
+ sctx->cur_ino);
+ ret = -EINVAL;
+ goto out;
+ }
valid_path = fs_path_alloc();
if (!valid_path) {
