Fix stack-buffer-overflow in parser.c #110
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A stack-buffer-overflow occurred when a decorator (e.g., rounding or SAE) was encountered without a preceding operand. This caused the operand index to underflow, leading to invalid memory access. Added a check to ensure `opnum > 0` before decrementing, preventing the underflow and fixing the crash when parsing malformed decorators. Fixes: #3392931 Signed-off-by: Gabriel Barrantes <gabriel.barrantes.dev@outlook.com>
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A stack-buffer-overflow occurred when a decorator (e.g., rounding or SAE) was encountered without a preceding operand. This caused the operand index to underflow, leading to invalid memory access.
Added a check to ensure
opnum > 0before decrementing, preventing the underflow and fixing the crash when parsing malformed decorators.Fixes: #3392931