[ Upstream commit0a6dc67a6a
] Release the buffer_head before returning error code in do_isofs_readdir() and isofs_find_entry(). Fixes:2deb1acc65
("isofs: fix access to unallocated memory when reading corrupted filesystem") Link: https://lore.kernel.org/r/20210118120455.118955-1-bianpan2016@163.com Signed-off-by: Pan Bian <bianpan2016@163.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Sasha Levin <sashal@kernel.org>