GitHub-Proxy/PrusaSlicer
1
0
Fork 0
mirror of https://git.mirrors.martin98.com/https://github.com/prusa3d/PrusaSlicer.git synced 2025-08-17 09:35:53 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Better fix of heap buffer overflow, suggested in https://github.com/nothings/stb/issues/1296

Browse Source
This commit is contained in:
Filip Sykala 2022-03-21 06:31:43 +01:00
parent bec8d5b31d
commit 350d062495
2 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/imgui/README.md
View File

@ -18,5 +18,5 @@ imstb_truetype.h modification:
Hot fix for open symbolic fonts on windows Hot fix for open symbolic fonts on windows
62bdfe6f8d04b88e8bd511cd613be80c0baa7f55 62bdfe6f8d04b88e8bd511cd613be80c0baa7f55
Hot fix for prevent Heap buffer overflow on MAC Hot fix for open curved fonts mainly on MAC
56758dcf8568d91b8a3ad50ccd4b137181ac9490 2148e49f75d82cb19dc6ec409fb7825296ed005c

4
src/imgui/imstb_truetype.h
View File

@ -1664,7 +1664,7 @@ static int stbtt__GetGlyphShapeTT(const stbtt_fontinfo *info, int glyph_index, s
n = 1+ttUSHORT(endPtsOfContours + numberOfContours*2-2); n = 1+ttUSHORT(endPtsOfContours + numberOfContours*2-2);
m = n + 2*numberOfContours; // a loose bound on how many vertices we might need m = n + 2*numberOfContours; // a loose bound on how many vertices we might need
vertices = (stbtt_vertex *) STBTT_malloc((m + 1) * sizeof(vertices[0]), info->userdata); vertices = (stbtt_vertex *) STBTT_malloc(m * sizeof(vertices[0]), info->userdata);
if (vertices == 0) if (vertices == 0)
return 0; return 0;
@ -1735,7 +1735,7 @@ static int stbtt__GetGlyphShapeTT(const stbtt_fontinfo *info, int glyph_index, s
// now start the new one // now start the new one
start_off = !(flags & 1); start_off = !(flags & 1);
if (start_off) { if (start_off && (i + 1) < n) {
// if we start off with an off-curve point, then when we need to find a point on the curve // if we start off with an off-curve point, then when we need to find a point on the curve
// where we can start, and we need to save some state for when we wraparound. // where we can start, and we need to save some state for when we wraparound.
scx = x; scx = x;