Crash_Override/OVMS3-idf
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

nvs: fix out of bounds array access in host test

Browse source
This commit is contained in:
Ivan Grokhotkov 2020-03-11 11:28:44 +01:00
parent db34a4d031
commit d2526e6dda
1 changed files with 2 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
components/nvs_flash/test_nvs_host/spi_flash_emulation.cpp
View file

@ -71,10 +71,11 @@ static size_t blockEraseTime = 37142;
static size_t timeInterp(uint32_t bytes, size_t* lut)
{
const int lut_size = sizeof(readTimes)/sizeof(readTimes[0]);
int lz = __builtin_clz(bytes / 4);
int log_size = 32 - lz;
size_t x2 = 1 << (log_size + 2);
size_t y2 = lut[log_size];
size_t y2 = lut[std::min(log_size, lut_size - 1)];
size_t x1 = 1 << (log_size + 1);
size_t y1 = lut[log_size - 1];
return (bytes - x1) * (y2 - y1) / (x2 - x1) + y1;