0016 CRASH detected in recff_math_call due to a fault at or near 0x00000020dfff807f leading to SIGSEGV

[Kutyavin Maxim]

                      634: void recff_math_call(J = (jit_State *)0x7ffff7e533f0, rd = (RecordFFData *)0x7ffff70c0010) {

                       |||: /* Local reference: jit_State * J = 0x7ffff7e533f0; */

                       |||: /* Local reference: RecordFFData * rd = 0x7ffff70c0010; */

                       |||: /* Local reference: TRef tr = <optimized out>; */

                       635: {

                       636:   TRef tr = lj_ir_tonum(J, J->base[0]);

                       |||:


                       ---: }

                       at lj_ffrecord.c:636

poc.txt

[Peter Cawley]

The poc.txt does not reproduce for me (using git head, 5790d25).

[Sergey Kaplun]

Looks like a duplicate of #1152. The issue is not reproduced on defe61a ("Rework stack overflow handling.") and leads to the crash right before.