mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-25 02:09:42 +00:00
Btrfs: lzo: compressed data size must be less then input size
Logic already skips if compression makes data bigger, let's sync lzo with zlib and also return error if compressed size is equal to input size. Signed-off-by: Timofey Titovets <nefelim4ag@gmail.com> Reviewed-by: David Sterba <dsterba@suse.com> [ update changelog ] Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
parent
054ec2f626
commit
1e9d7291e5
1 changed files with 3 additions and 1 deletions
|
@ -230,8 +230,10 @@ static int lzo_compress_pages(struct list_head *ws,
|
|||
in_len = min(bytes_left, PAGE_SIZE);
|
||||
}
|
||||
|
||||
if (tot_out > tot_in)
|
||||
if (tot_out >= tot_in) {
|
||||
ret = -E2BIG;
|
||||
goto out;
|
||||
}
|
||||
|
||||
/* store the size of all chunks of compressed data */
|
||||
cpage_out = kmap(pages[0]);
|
||||
|
|
Loading…
Reference in a new issue