From 780f6a9afe8b0e303406a39f6968cf1daa6c3d51 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 4 Jan 2023 13:20:52 -0800 Subject: lib: zstd: Fix -Wstringop-overflow warning MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix the following -Wstringop-overflow warning when building with GCC 11+: lib/zstd/decompress/huf_decompress.c: In function ‘HUF_readDTableX2_wksp’: lib/zstd/decompress/huf_decompress.c:700:5: warning: ‘HUF_fillDTableX2.constprop’ accessing 624 bytes in a region of size 52 [-Wstringop-overflow=] 700 | HUF_fillDTableX2(dt, maxTableLog, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 701 | wksp->sortedSymbol, sizeOfSort, | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 702 | wksp->rankStart0, wksp->rankVal, maxW, | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 703 | tableLog+1, | ~~~~~~~~~~~ 704 | wksp->calleeWksp, sizeof(wksp->calleeWksp) / sizeof(U32)); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ lib/zstd/decompress/huf_decompress.c:700:5: note: referencing argument 6 of type ‘U32 (*)[13]’ {aka ‘unsigned int (*)[13]’} lib/zstd/decompress/huf_decompress.c:571:13: note: in a call to function ‘HUF_fillDTableX2.constprop’ 571 | static void HUF_fillDTableX2(HUF_DEltX2* DTable, const U32 targetLog, | ^~~~~~~~~~~~~~~~ by using pointer notation instead of array notation. This is one of the last remaining warnings to be fixed before globally enabling -Wstringop-overflow. Co-developed-by: Gustavo A. R. Silva Signed-off-by: Gustavo A. R. Silva Cc: Nick Terrell Signed-off-by: Kees Cook Signed-off-by: Nick Terrell --- lib/zstd/decompress/huf_decompress.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'lib/zstd') diff --git a/lib/zstd/decompress/huf_decompress.c b/lib/zstd/decompress/huf_decompress.c index 89b269a641c7..60958afebc41 100644 --- a/lib/zstd/decompress/huf_decompress.c +++ b/lib/zstd/decompress/huf_decompress.c @@ -985,7 +985,7 @@ static void HUF_fillDTableX2Level2(HUF_DEltX2* DTable, U32 targetLog, const U32 static void HUF_fillDTableX2(HUF_DEltX2* DTable, const U32 targetLog, const sortedSymbol_t* sortedList, - const U32* rankStart, rankVal_t rankValOrigin, const U32 maxWeight, + const U32* rankStart, rankValCol_t *rankValOrigin, const U32 maxWeight, const U32 nbBitsBaseline) { U32* const rankVal = rankValOrigin[0]; -- cgit v1.2.3