gh-146388: Add null check for `sym_new(ctx)` in `make_bottom` #146389

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Merged

Fidget-Spinner merged 7 commits into python:main from A0su:Fix_null_deref_in_make_bottom

Mar 27, 2026

Python/optimizer_symbols.c

-Original file line number
+Diff line change
@@ Expand Up / @@ -1684,6 +1684,9 @@ static JitOptSymbol * @@
     make_bottom(JitOptContext *ctx)
     {
         JitOptSymbol *sym = sym_new(ctx);
+        if (sym == NULL) {
+            return out_of_space(ctx);
+        }
         sym->tag = JIT_SYM_BOTTOM_TAG;
         return sym;
     }
@@ Expand Down @@