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Check bounds of peeked memory for achievements

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This commit is contained in:
Raphaël Zumer 2019-04-15 13:11:49 -04:00
parent 3d7eb19abd
commit dc37d56ac8
1 changed files with 10 additions and 1 deletions
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11
cheevos/var.c
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@ -295,8 +295,13 @@ uint8_t* cheevos_var_get_memory(const cheevos_var_t* var)
{
rarch_system_info_t* system = runloop_get_system_info();
if (system->mmaps.num_descriptors != 0)
if (system->mmaps.num_descriptors > var->bank_id)
{
if (var->value >= system->mmaps.descriptors[var->bank_id].core.len)
return NULL;
memory = (uint8_t*)system->mmaps.descriptors[var->bank_id].core.ptr;
}
else
{
retro_ctx_memory_info_t meminfo = {NULL, 0, 0};
@ -321,6 +326,10 @@ uint8_t* cheevos_var_get_memory(const cheevos_var_t* var)
}
core_get_memory(&meminfo);
if (var->value >= meminfo.size)
return NULL;
memory = (uint8_t*)meminfo.data;
}