From 76d270ec2b776cc5331935cc58c2d63622f1c0e9 Mon Sep 17 00:00:00 2001 From: Erlend Egeberg Aasland Date: Fri, 9 Apr 2021 19:46:32 +0200 Subject: [3.9] bpo-43779: Fix possible refleak involving _PyArena_AddPyObject (GH-25289). (GH-25294) * [3.9] Fix possible refleak involving _PyArena_AddPyObject (GH-25289). (cherry picked from commit c0e11a3ceb9427e09db4224f394c7789bf6deec5) Co-authored-by: Erlend Egeberg Aasland * Update Parser/pegen/pegen.c Co-authored-by: Pablo Galindo --- Parser/pegen/pegen.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/Parser/pegen/pegen.c b/Parser/pegen/pegen.c index 0a26275..111009a 100644 --- a/Parser/pegen/pegen.c +++ b/Parser/pegen/pegen.c @@ -639,7 +639,10 @@ _PyPegen_fill_token(Parser *p) if (t->bytes == NULL) { return -1; } - PyArena_AddPyObject(p->arena, t->bytes); + if (PyArena_AddPyObject(p->arena, t->bytes) < 0) { + Py_DECREF(t->bytes); + return -1; + } int lineno = type == STRING ? p->tok->first_lineno : p->tok->lineno; const char *line_start = type == STRING ? p->tok->multi_line_start : p->tok->line_start; -- cgit v0.12