diff options
| -rw-r--r-- | frida_mode/src/cmplog/cmplog_x64.c | 16 |
1 files changed, 3 insertions, 13 deletions
diff --git a/frida_mode/src/cmplog/cmplog_x64.c b/frida_mode/src/cmplog/cmplog_x64.c index cdb698d5..9bf09ad5 100644 --- a/frida_mode/src/cmplog/cmplog_x64.c +++ b/frida_mode/src/cmplog/cmplog_x64.c @@ -175,6 +175,8 @@ static void cmplog_call_callout(GumCpuContext *context, gpointer user_data) { guint64 rdi = cmplog_read_reg(context, X86_REG_RDI); guint64 rsi = cmplog_read_reg(context, X86_REG_RSI); + if (((G_MAXULONG - rdi) < 32) || ((G_MAXULONG - rsi) < 32)) return; + void *ptr1 = GSIZE_TO_POINTER(rdi); void *ptr2 = GSIZE_TO_POINTER(rsi); @@ -223,18 +225,6 @@ static void cmplog_instrument_put_operand(cmplog_ctx_t *ctx, } -static void cmplog_instrument_call_put_callout(GumStalkerIterator *iterator, - cs_x86_op * operand) { - - cmplog_ctx_t *ctx = g_malloc(sizeof(cmplog_ctx_t)); - if (ctx == NULL) return; - - cmplog_instrument_put_operand(ctx, operand); - - gum_stalker_iterator_put_callout(iterator, cmplog_call_callout, ctx, g_free); - -} - static void cmplog_instrument_call(const cs_insn * instr, GumStalkerIterator *iterator) { @@ -251,7 +241,7 @@ static void cmplog_instrument_call(const cs_insn * instr, if (operand->type == X86_OP_MEM && operand->mem.segment != X86_REG_INVALID) return; - cmplog_instrument_call_put_callout(iterator, operand); + gum_stalker_iterator_put_callout(iterator, cmplog_call_callout, NULL, NULL); } |