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Fix stack-buffer-overflow in parser.c #110

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Fix stack-buffer-overflow in parser.c #110

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5 changes: 5 additions & 0 deletions asm/parser.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1175,6 +1175,11 @@ insn *parse_line(char *buffer, insn *result)
* put the decorator information in the (opflag_t) type field
* of previous operand.
*/
if (opnum == 0) {
nasm_nonfatal("decorator without an operand");
goto fail;
}

opnum--; op--;
switch (value->value) {
case BRC_RN:
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