17 Commits

Author	SHA1	Message	Date
Nick Terrell	d760529a05	Fix stack buffer overrun when weightTotal == 0 ... If `weightTotal == 0`, then `BIT_highbit32(weightTotal)` is undefined behavior in the case that it calls `__builtin_clz()`. If `tableLog == HUF_TABLELOG_ABSOLUTEMAX` then we will access one byte beyond the end of the buffer.	2016-10-19 11:39:11 -07:00
Nick Terrell	bb68062c59	Unitialized memory read in ZSTD_decodeSeqHeaders() ... Caused by two things: 1. Not checking that `ip` is in range except for the first byte. 2. `ZSTDv0{5,6}_decodeLiteralsBlock()` could return a value larger than `srcSize`.	2016-10-18 16:41:33 -07:00
Nick Terrell	4db751668f	Fix buffer overrun in ZSTD_loadEntropy() ... The table log set by `FSE_readNCount()` was not checked in `ZSTD_loadEntropy()`. This caused `FSE_buildDTable(dctx->MLTable, ...)` to overwrite the beginning of `dctx->hufTable`. The benchmarks look good, there is no obvious performance regression: > ./zstds/zstd.opt.0 -i10 -b1 -e5 ~/bench/silesia.tar 1#silesia.tar : 211988480 -> 73656930 (2.878), 268.2 MB/s , 701.0 MB/s 2#silesia.tar : 211988480 -> 70162842 (3.021), 199.5 MB/s , 666.9 MB/s 3#silesia.tar : 211988480 -> 66997986 (3.164), 154.9 MB/s , 655.6 MB/s 4#silesia.tar : 211988480 -> 66002591 (3.212), 128.9 MB/s , 648.4 MB/s 5#silesia.tar : 211988480 -> 65008480 (3.261), 98.4 MB/s , 633.4 MB/s > ./zstds/zstd.opt.2 -i10 -b1 -e5 ~/bench/silesia.tar 1#silesia.tar : 211988480 -> 73656930 (2.878), 266.1 MB/s , 703.7 MB/s 2#silesia.tar : 211988480 -> 70162842 (3.021), 199.0 MB/s , 666.6 MB/s 3#silesia.tar : 211988480 -> 66997986 (3.164), 156.2 MB/s , 656.2 MB/s 4#silesia.tar : 211988480 -> 66002591 (3.212), 133.2 MB/s , 647.4 MB/s 5#silesia.tar : 211988480 -> 65008480 (3.261), 96.3 MB/s , 633.3 MB/s	2016-10-17 15:51:15 -07:00
Nick Terrell	ccfcc643da	Check if dict is empty before reading first byte	2016-10-17 11:46:03 -07:00
Nick Terrell	7158584399	Fix ZSTD_execSequence() edge case	2016-10-12 10:05:26 -07:00
Christophe Chevalier	dc245e91cb	Changed to use ZSTDLIBv06_API and ZSTDLIBv07_API for DLL exports to fix warning ... - changed name to prevent collision with ZSTDLIB_API used by non-legacy dll exports	2016-09-23 17:09:36 +02:00
inikep	8161e7321a	unified error codes for legacy decoders	2016-09-05 12:29:51 +02:00
Yann Collet	1563bfeabc	fixing FORCE_INLINE for older compilers (#330)	2016-09-02 11:44:21 -07:00
Yann Collet	4ded9e591c	added boilerplate	2016-08-30 11:06:28 -07:00
Yann Collet	87c18b2ebd	fixed multiple minor warnings for XCode	2016-08-26 01:43:47 +02:00
inikep	57ef4b1a0d	zstd_v07.c: removed unused macros	2016-08-24 17:16:56 +02:00
inikep	a7bb322a93	removed never referenced functions	2016-08-18 10:30:21 +02:00
inikep	48849f86f0	fixed compilation with Intel Compiler with Windows	2016-08-10 14:26:35 +02:00
Yann Collet	f323bf7d32	added : ZSTD_getDecompressedSize()	2016-07-07 13:14:21 +02:00
inikep	4923222412	fixed warnings from Travis	2016-06-09 20:03:30 +02:00
inikep	4000945a1d	project updated for legacy decoder zstd_v06.c	2016-06-09 18:12:06 +02:00
inikep	bf853d5510	added legacy decoder for v0.6 format	2016-06-09 17:59:18 +02:00