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Title: gh-146388: Add null check for `sym_new(ctx)` in `make_bottom` by A0su · Pull Request #146389 · python/cpython · GitHub

Open Graph Title: gh-146388: Add null check for `sym_new(ctx)` in `make_bottom` by A0su · Pull Request #146389 · python/cpython

X Title: gh-146388: Add null check for `sym_new(ctx)` in `make_bottom` by A0su · Pull Request #146389 · python/cpython

Description: The Python programming language. Contribute to python/cpython development by creating an account on GitHub.

Open Graph Description: optimizer_symbols.c: make_bottom NULL deref when arena full sym_new(ctx) at line 1535 can return NULL when the type arena is full. Result immediately dereferenced without check. Every other sym_new...

X Description: optimizer_symbols.c: make_bottom NULL deref when arena full sym_new(ctx) at line 1535 can return NULL when the type arena is full. Result immediately dereferenced without check. Every other sym_new...

Opengraph URL: https://github.com/python/cpython/pull/146389

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gh-146388: Add null check for sym_new(ctx) in make_bottomhttps://github.com/python/cpython/pull/146389/commits#top
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add null check for sym_new(ctx) in make_bottomhttps://github.com/python/cpython/pull/146389/commits/e99eb555407d22b67ccd4ac15001b6f4919a2ec4
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fix typo on var namehttps://github.com/python/cpython/pull/146389/commits/8d0ef9d8d96258bc79fe6eb079e77d650d07c0d0
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use out_of_space instead of out_of_space_ref to align return typehttps://github.com/python/cpython/pull/146389/commits/d2ff2c57ec9f0ab394fdae98b5256c4ab9da8c87
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add blurbhttps://github.com/python/cpython/pull/146389/commits/a6a2fdef2bdbedbc61e10fc320ca25fd8d37efc7
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update blurb based on commenthttps://github.com/python/cpython/pull/146389/commits/e76d0ea0c53c33fe8498f13e3c7d26b2c447bd71
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https://github.com/python/cpython/tree/e76d0ea0c53c33fe8498f13e3c7d26b2c447bd71
fix blurb based :func:https://github.com/python/cpython/pull/146389/commits/5a393d26ebd827449506a55bab5d94ba169d28f9
https://github.com/A0su
A0suhttps://github.com/python/cpython/commits?author=A0su
5a393d2https://github.com/python/cpython/pull/146389/commits/5a393d26ebd827449506a55bab5d94ba169d28f9
https://github.com/python/cpython/tree/5a393d26ebd827449506a55bab5d94ba169d28f9
Update 2026-03-26-11-18-45.gh-issue-146388.O0u1c3.rsthttps://github.com/python/cpython/pull/146389/commits/1ec767b501859e7680f105ac598e7fd9883af534
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https://github.com/python/cpython/tree/1ec767b501859e7680f105ac598e7fd9883af534
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