From 66e037f297847ece3e848f159f17827e24058697 Mon Sep 17 00:00:00 2001
From: David Cermak <cermak@espressif.com>
Date: Mon, 31 Aug 2026 12:22:33 +0200
Subject: [PATCH] fix(lwip): Fix potential OOB in napt and ipv6

And fixes a minor gcc-analyzer issue.
Update submodule: git log --oneline c6f2f878..fc73c67e
  - ipv4: Fix potential use uninit var in ip4_addr (espressif/esp-lwip@fc73c67e5)
  - test: Fix flaky linger socket stress bind race (espressif/esp-lwip@0f374c135)
  - nd6: Add helper copying link-layer addresses (espressif/esp-lwip@59107adec)
  - napt: Fix potential OOB read in ip4 module (espressif/esp-lwip@c7e760848)
  - ci: Update sync issues GitHub action (espressif/esp-lwip@fd0763051)
---
 components/lwip/CMakeLists.txt | 8 --------
 components/lwip/lwip           | 2 +-
 2 files changed, 1 insertion(+), 9 deletions(-)

diff --git a/components/lwip/CMakeLists.txt b/components/lwip/CMakeLists.txt
index af7fbff8b67..8f34fdde598 100644
--- a/components/lwip/CMakeLists.txt
+++ b/components/lwip/CMakeLists.txt
@@ -217,14 +217,6 @@ if(CONFIG_LWIP_ENABLE)
         -Wno-unused-but-set-variable
     )
 
-    if(CONFIG_COMPILER_STATIC_ANALYZER AND CONFIG_IDF_TOOLCHAIN_GCC)
-        set_source_files_properties(
-            lwip/src/core/ipv4/ip4_addr.c
-            PROPERTIES COMPILE_FLAGS
-            -Wno-analyzer-use-of-uninitialized-value
-        )
-    endif()
-
     if(CONFIG_OPENTHREAD_ENABLED)
         idf_component_optional_requires(PRIVATE openthread)
     endif()
diff --git a/components/lwip/lwip b/components/lwip/lwip
index c6f2f878e7b..fc73c67e5c3 160000
--- a/components/lwip/lwip
+++ b/components/lwip/lwip
@@ -1 +1 @@
-Subproject commit c6f2f878e7b0f86033214b85547d579be43351e3
+Subproject commit fc73c67e5c37c27a319725a0aee974c087dbf1a6