From 211087d5bcfe608bc9da31adcfe883f60518baef Mon Sep 17 00:00:00 2001 From: abdulm6 Date: Tue, 11 Aug 2026 15:57:45 -0400 Subject: [PATCH] gh-155504: Set interpreter before thread state initialization --- .../2026-08-11-13-50-35.gh-issue-155504.PsTqZm.rst | 2 ++ Python/pystate.c | 2 ++ 2 files changed, 4 insertions(+) create mode 100644 Misc/NEWS.d/next/Core_and_Builtins/2026-08-11-13-50-35.gh-issue-155504.PsTqZm.rst diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2026-08-11-13-50-35.gh-issue-155504.PsTqZm.rst b/Misc/NEWS.d/next/Core_and_Builtins/2026-08-11-13-50-35.gh-issue-155504.PsTqZm.rst new file mode 100644 index 000000000000000..e042bf3554e6f05 --- /dev/null +++ b/Misc/NEWS.d/next/Core_and_Builtins/2026-08-11-13-50-35.gh-issue-155504.PsTqZm.rst @@ -0,0 +1,2 @@ +Fix a crash when thread state creation fails before the thread state is fully +initialized. diff --git a/Python/pystate.c b/Python/pystate.c index 646c157007d4ac1..6b0d6a7a372c926 100644 --- a/Python/pystate.c +++ b/Python/pystate.c @@ -1508,6 +1508,8 @@ alloc_threadstate(PyInterpreterState *interp) } reset_threadstate(tstate); } + // Set the interpreter before any later initialization can fail. + tstate->base.interp = interp; return tstate; }