Commit 8f9b54a3 authored by Lasse Collin's avatar Lasse Collin Committed by Linus Torvalds

Decompressors: check for write errors in decompress_unlzo.c

The return value of flush() is not checked in unlzo().  This means that
the decompressor won't stop even if the caller doesn't want more data.
This can happen e.g.  with a corrupt LZO-compressed initramfs image.
Signed-off-by: 's avatarLasse Collin <lasse.collin@tukaani.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Alain Knaff <alain@knaff.lu>
Cc: Albin Tonnerre <albin.tonnerre@free-electrons.com>
Cc: Phillip Lougher <phillip@lougher.demon.co.uk>
Signed-off-by: 's avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: 's avatarLinus Torvalds <torvalds@linux-foundation.org>
parent eb0cf3e1
......@@ -187,8 +187,8 @@ STATIC inline int INIT unlzo(u8 *input, int in_len,
}
}
if (flush)
flush(out_buf, dst_len);
if (flush && flush(out_buf, dst_len) != dst_len)
goto exit_2;
if (output)
out_buf += dst_len;
if (posp)
......
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