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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, stable@kernel.org,
        Ye Bin <yebin10@huawei.com>, Jan Kara <jack@suse.cz>,
        Theodore Tso <tytso@mit.edu>
Subject: [PATCH 5.15 091/530] jbd2: add miss release buffer head in fc_do_one_pass()
Date:   Mon, 24 Oct 2022 13:27:15 +0200
Message-Id: <20221024113049.129215669@linuxfoundation.org>
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From: Ye Bin <yebin10@huawei.com>

commit dfff66f30f66b9524b661f311bbed8ff3d2ca49f upstream.

In fc_do_one_pass() miss release buffer head after use which will lead
to reference count leak.

Cc: stable@kernel.org
Signed-off-by: Ye Bin <yebin10@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20220917093805.1782845-1-yebin10@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/jbd2/recovery.c |    1 +
 1 file changed, 1 insertion(+)

--- a/fs/jbd2/recovery.c
+++ b/fs/jbd2/recovery.c
@@ -256,6 +256,7 @@ static int fc_do_one_pass(journal_t *jou
 		err = journal->j_fc_replay_callback(journal, bh, pass,
 					next_fc_block - journal->j_fc_first,
 					expected_commit_id);
+		brelse(bh);
 		next_fc_block++;
 		if (err < 0 || err == JBD2_FC_REPLAY_STOP)
 			break;