tacosukoneko/suyu
1
0
Fork 0
forked from suyu/suyu
Code Pull requests Activity

video_core: Fix benign out-of-bounds indexing of array (#2553)

Browse source 
The resulting pointer wasn't written to unless the index was verified as
valid, but that's still UB and triggered debug checks in MSVC.

Reported by garrettboast on IRC
This commit is contained in:
Yuri Kunde Schlesner 2017-02-10 20:51:09 -08:00 committed by GitHub
parent 2889372e47
commit e2fa1ca5e1
1 changed files with 1 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
src/video_core/shader/shader.cpp
View file

@ -39,9 +39,8 @@ OutputVertex OutputVertex::FromAttributeBuffer(const RasterizerRegs& regs, Attri
for (unsigned comp = 0; comp < 4; ++comp) {
RasterizerRegs::VSOutputAttributes::Semantic semantic = semantics[comp];
float24* out = &vertex_slots[semantic];
if (semantic < vertex_slots.size()) {
*out = input.attr[i][comp];
vertex_slots[semantic] = input.attr[i][comp];
} else if (semantic != RasterizerRegs::VSOutputAttributes::INVALID) {
LOG_ERROR(HW_GPU, "Invalid/unknown semantic id: %u", (unsigned int)semantic);
}