mirror of
https://github.com/raspberrypi/linux.git
synced 2025-12-24 11:02:51 +00:00
7caad075ac
[ Upstream commit cc47f07234 ]
Unlike the decompression code, the compression code in LZO never
checked for output overruns. It instead assumes that the caller
always provides enough buffer space, disregarding the buffer length
provided by the caller.
Add a safe compression interface that checks for the end of buffer
before each write. Use the safe interface in crypto/lzo.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
19 lines
495 B
C
19 lines
495 B
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* LZO1X Compressor from LZO
|
|
*
|
|
* Copyright (C) 1996-2012 Markus F.X.J. Oberhumer <markus@oberhumer.com>
|
|
*
|
|
* The full LZO package can be found at:
|
|
* http://www.oberhumer.com/opensource/lzo/
|
|
*
|
|
* Changed for Linux kernel use by:
|
|
* Nitin Gupta <nitingupta910@gmail.com>
|
|
* Richard Purdie <rpurdie@openedhand.com>
|
|
*/
|
|
|
|
#define LZO_SAFE(name) name##_safe
|
|
#define HAVE_OP(x) ((size_t)(op_end - op) >= (size_t)(x))
|
|
|
|
#include "lzo1x_compress.c"
|