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authorJan Kara <jack@suse.cz>2022-01-18 09:57:25 +0100
committerJan Kara <jack@suse.cz>2022-01-24 14:45:02 +0100
commitea8569194b43f0f01f0a84c689388542c7254a1f (patch)
treebdabba9ed18aab1a83dfbef27495b955d42fbac6 /fs
parent7fc3b7c2981bbd1047916ade327beccb90994eee (diff)
udf: Restore i_lenAlloc when inode expansion fails
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>
Diffstat (limited to 'fs')
-rw-r--r--fs/udf/inode.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index d6aa506b6b58..ea8f6cd01f50 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -315,6 +315,7 @@ int udf_expand_file_adinicb(struct inode *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);