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GH-141212: Fix possible memory leak in gc_mark_span_push (gh-141213)

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Sergey Miryanov 2025-11-10 21:19:13 +05:00 • committed by GitHub
parent 88953d5deb
commit f835552946
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1 changed files with 3 additions and 2 deletions
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Python/gc_free_threading.c
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@ -675,10 +675,11 @@ gc_mark_span_push(gc_span_stack_t *ss, PyObject **start, PyObject **end)
else { else {
ss->capacity *= 2; ss->capacity *= 2;
} }
ss->stack = (gc_span_t *)PyMem_Realloc(ss->stack, ss->capacity * sizeof(gc_span_t)); gc_span_t *new_stack = (gc_span_t *)PyMem_Realloc(ss->stack, ss->capacity * sizeof(gc_span_t));
if (ss->stack == NULL) { if (new_stack == NULL) {
return -1; return -1;
} }
ss->stack = new_stack;
} }
assert(end > start); assert(end > start);
ss->stack[ss->size].start = start; ss->stack[ss->size].start = start;