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Commit e7ee11f0 authored by Phillip Lougher's avatar Phillip Lougher
Browse files

Squashfs: add missing check in zlib_wrapper 



On file system corruption zlib can return Z_STREAM_OK with
input buffers remaining, which will not be released.

Signed-off-by: default avatarPhillip Lougher <phillip@lougher.demon.co.uk>
parent 170cf021

fs/squashfs/zlib_wrapper.c

+5 −0
Original line number Original line Diff line number Diff line
@@ -127,6 +127,11 @@ static int zlib_uncompress(struct squashfs_sb_info *msblk, void **buffer, 
		goto release_mutex;

		goto release_mutex;

	}

	}





	if (k < b) {

		ERROR("zlib_uncompress error, data remaining\n");

		goto release_mutex;

	}



	length = stream->total_out;

	length = stream->total_out;

	mutex_unlock(&msblk->read_data_mutex);

	mutex_unlock(&msblk->read_data_mutex);

	return length;

	return length;