diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2026-10-28-22-15-00.gh-issue-160852.st0pTr.rst b/Misc/NEWS.d/next/Core_and_Builtins/2026-10-28-22-15-00.gh-issue-160852.st0pTr.rst
new file mode 100644
index 000000000000000..dcf86d6f06323e6
--- /dev/null
+++ b/Misc/NEWS.d/next/Core_and_Builtins/2026-10-28-22-15-00.gh-issue-160852.st0pTr.rst
@@ -0,0 +1,2 @@
+Fix a crash in the experimental JIT when a finalizer invalidates an
+executor while ``stop_tracing`` leaves the tracer.
diff --git a/Modules/_testinternalcapi/test_cases.c.h b/Modules/_testinternalcapi/test_cases.c.h
index 8e7ba1f69553dda..10e1dfc91248b89 100644
--- a/Modules/_testinternalcapi/test_cases.c.h
+++ b/Modules/_testinternalcapi/test_cases.c.h
@@ -13836,6 +13836,8 @@ JUMP_TO_LABEL(error);
             if (err < 0) {
                 JUMP_TO_LABEL(error);
             }
+            opcode = next_instr->op.code;
+            oparg = (oparg & ~255) | next_instr->op.arg;
             DISPATCH_GOTO_NON_TRACING();
             #else
             Py_FatalError("JIT label executed in non-jit build.");
diff --git a/Python/bytecodes.c b/Python/bytecodes.c
index 42ad83daa1ea461..d6b25d5ad1b29e5 100644
--- a/Python/bytecodes.c
+++ b/Python/bytecodes.c
@@ -6636,6 +6636,16 @@ dummy_func(
             LEAVE_TRACING();
             int err = stop_tracing_and_jit(tstate, frame);
             ERROR_IF(err < 0);
+            /* stop_tracing_and_jit() can drop the last reference to a
+               temporary and run a finalizer. A ResourceWarning then writes
+               __warningregistry__ into a watched globals dict, and
+               executor_invalidate() restores this instruction and clears its
+               executor slot. Dispatching the ENTER_EXECUTOR opcode sampled
+               above calls _PyJIT_Entry(NULL). Keep any EXTENDED_ARG bits
+               already accumulated in oparg; only the low byte lives in the
+               code unit. */
+            opcode = next_instr->op.code;
+            oparg = (oparg & ~255) | next_instr->op.arg;
             DISPATCH_GOTO_NON_TRACING();
 #else
             Py_FatalError("JIT label executed in non-jit build.");
diff --git a/Python/generated_cases.c.h b/Python/generated_cases.c.h
index ee9b64107bb9f24..2775d918e024167 100644
--- a/Python/generated_cases.c.h
+++ b/Python/generated_cases.c.h
@@ -13833,6 +13833,8 @@ JUMP_TO_LABEL(error);
             if (err < 0) {
                 JUMP_TO_LABEL(error);
             }
+            opcode = next_instr->op.code;
+            oparg = (oparg & ~255) | next_instr->op.arg;
             DISPATCH_GOTO_NON_TRACING();
             #else
             Py_FatalError("JIT label executed in non-jit build.");