| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.15 017/171] udf: Restore i_lenAlloc when inode expansion fails | Date | Mon, 31 Jan 2022 11:54:42 +0100 |
| |
From: Jan Kara <jack@suse.cz>
commit ea8569194b43f0f01f0a84c689388542c7254a1f upstream.
When we fail to expand inode from inline format to a normal format, we restore inode to contain the original inline formatting but we forgot to set i_lenAlloc back. The mismatch between i_lenAlloc and i_size was then causing further problems such as warnings and lost data down the line.
Reported-by: butt3rflyh4ck <butterflyhuangxx@gmail.com> CC: stable@vger.kernel.org Fixes: 7e49b6f2480c ("udf: Convert UDF to new truncate calling sequence") Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- fs/udf/inode.c | 1 + 1 file changed, 1 insertion(+)
--- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -317,6 +317,7 @@ int udf_expand_file_adinicb(struct inode unlock_page(page); iinfo->i_alloc_type = ICBTAG_FLAG_AD_IN_ICB; inode->i_data.a_ops = &udf_adinicb_aops; + iinfo->i_lenAlloc = inode->i_size; up_write(&iinfo->i_data_sem); } put_page(page);
|