From: Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com>
Date: Mon, 18 May 2026 09:00:19 +0000 (+0200)
Subject: [3.15] gh-149953: Fix null pointer dereference order in `code_objects.c` (GH-149956... 
X-Git-Tag: v3.15.0b2~135
X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=6e83c55e643ac1c189535604e70b0328c0ebec44;p=thirdparty%2FPython%2Fcpython.git

[3.15] gh-149953: Fix null pointer dereference order in `code_objects.c` (GH-149956) (#149976)

gh-149953: Fix null pointer dereference order in `code_objects.c` (GH-149956)

Move  check before
(cherry picked from commit 0ed497a350d76dd20de1a1689c84426c7c1d6e22)

Co-authored-by: Nezuko Agent <nezukoagent@gmail.com>
---

diff --git a/Modules/_remote_debugging/code_objects.c b/Modules/_remote_debugging/code_objects.c
index 7b95c0f2d4fa..97c6ba772e88 100644
--- a/Modules/_remote_debugging/code_objects.c
+++ b/Modules/_remote_debugging/code_objects.c
@@ -432,7 +432,7 @@ parse_code_object(RemoteUnwinderObject *unwinder,
 
 #ifdef Py_GIL_DISABLED
     // Handle thread-local bytecode (TLBC) in free threading builds
-    if (ctx->tlbc_index == 0 || unwinder->debug_offsets.code_object.co_tlbc == 0 || unwinder == NULL) {
+    if (ctx->tlbc_index == 0 || unwinder == NULL || unwinder->debug_offsets.code_object.co_tlbc == 0) {
         // No TLBC or no unwinder - use main bytecode directly
         addrq = (uint16_t *)ip - (uint16_t *)meta->addr_code_adaptive;
         goto done_tlbc;