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Tracing JIT: Fixed possible stack-buffer-overflow.

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This commit is contained in:
Dmitry Stogov
2021-09-23 10:51:20 +03:00
parent 17a99f2b11
commit 08100e81e5
1 changed files with 2 additions and 2 deletions
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ext/opcache/jit/zend_jit_vm_helpers.c
+2 -2
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@@ -350,7 +350,7 @@ ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL zend_jit_loop_trace_helper(ZEND_OPCODE_HAN
trace_buffer[idx].info = _op | (_info); \
trace_buffer[idx].ptr = _ptr; \
idx++; \
if (idx >= ZEND_JIT_TRACE_MAX_LENGTH - 1) { \
if (idx >= ZEND_JIT_TRACE_MAX_LENGTH - 2) { \
stop = ZEND_JIT_TRACE_STOP_TOO_LONG; \
break; \
}
@@ -362,7 +362,7 @@ ZEND_OPCODE_HANDLER_RET ZEND_FASTCALL zend_jit_loop_trace_helper(ZEND_OPCODE_HAN
trace_buffer[idx].op3_type = _op3_type; \
trace_buffer[idx].ptr = _ptr; \
idx++; \
if (idx >= ZEND_JIT_TRACE_MAX_LENGTH - 1) { \
if (idx >= ZEND_JIT_TRACE_MAX_LENGTH - 2) { \
stop = ZEND_JIT_TRACE_STOP_TOO_LONG; \
break; \
}