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Fix JIT slot overflow during up-recursion.

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Reported by Sergey Kaplun. #1358
This commit is contained in:
Mike Pall
2025-05-28 21:13:17 +02:00
parent cd4af8ad80
commit 048972dbfd
1 changed files with 2 additions and 1 deletions
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3
src/lj_record.c
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@@ -749,7 +749,8 @@ void lj_record_ret(jit_State *J, BCReg rbase, ptrdiff_t gotresults)
lj_trace_err(J, LJ_TRERR_LLEAVE); lj_trace_err(J, LJ_TRERR_LLEAVE);
} else if (J->needsnap) { /* Tailcalled to ff with side-effects. */ } else if (J->needsnap) { /* Tailcalled to ff with side-effects. */
lj_trace_err(J, LJ_TRERR_NYIRETL); /* No way to insert snapshot here. */ lj_trace_err(J, LJ_TRERR_NYIRETL); /* No way to insert snapshot here. */
} else if (1 + pt->framesize >= LJ_MAX_JSLOTS) { } else if (1 + pt->framesize >= LJ_MAX_JSLOTS ||
J->baseslot + J->maxslot >= LJ_MAX_JSLOTS) {
lj_trace_err(J, LJ_TRERR_STACKOV); lj_trace_err(J, LJ_TRERR_STACKOV);
} else { /* Return to lower frame. Guard for the target we return to. */ } else { /* Return to lower frame. Guard for the target we return to. */
TRef trpt = lj_ir_kgc(J, obj2gco(pt), IRT_PROTO); TRef trpt = lj_ir_kgc(J, obj2gco(pt), IRT_PROTO);