diff options
| -rw-r--r-- | op.c | 7 |
1 files changed, 5 insertions, 2 deletions
@@ -6444,13 +6444,13 @@ OP * Perl_ck_grep(pTHX_ OP *o) { dVAR; - LOGOP *gwop; + LOGOP *gwop = NULL; OP *kid; const OPCODE type = o->op_type == OP_GREPSTART ? OP_GREPWHILE : OP_MAPWHILE; I32 offset; o->op_ppaddr = PL_ppaddr[OP_GREPSTART]; - NewOp(1101, gwop, 1, LOGOP); + /* don't allocate gwop here, as we may leak it if PL_error_count > 0 */ if (o->op_flags & OPf_STACKED) { OP* k; @@ -6461,6 +6461,7 @@ Perl_ck_grep(pTHX_ OP *o) for (k = cUNOPx(kid)->op_first; k; k = k->op_next) { kid = k; } + NewOp(1101, gwop, 1, LOGOP); kid->op_next = (OP*)gwop; o->op_flags &= ~OPf_STACKED; } @@ -6477,6 +6478,8 @@ Perl_ck_grep(pTHX_ OP *o) Perl_croak(aTHX_ "panic: ck_grep"); kid = kUNOP->op_first; + if (!gwop) + NewOp(1101, gwop, 1, LOGOP); gwop->op_type = type; gwop->op_ppaddr = PL_ppaddr[type]; gwop->op_first = listkids(o); |