CI: Update Linux runners to Ubuntu 24.04

.github/workflows/android_builds.yml

@@ -14,7 +14,7 @@ concurrency:
 
 jobs:
   build-android:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     name: ${{ matrix.name }}
     strategy:
       fail-fast: false

.github/workflows/godot_cpp_test.yml

@@ -15,7 +15,7 @@ concurrency:
 
 jobs:
   godot-cpp-tests:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     name: Build and test Godot CPP
     steps:
       - name: Checkout

.github/workflows/linux_builds.yml

@@ -17,7 +17,8 @@ concurrency:
 
 jobs:
   build-linux:
-    runs-on: ubuntu-20.04
+    # If unspecified, stay one LTS before latest to increase portability of Linux artifacts.
+    runs-on: ${{ matrix.os || 'ubuntu-22.04' }}
     name: ${{ matrix.name }}
     strategy:
       fail-fast: false
@@ -60,6 +61,8 @@ jobs:
             artifact: false
             # Test our oldest supported SCons/Python versions on one arbitrary editor build.
             legacy-scons: true
+            # Python 3.6 unavailable on 22.04.
+            os: ubuntu-20.04
 
           - name: Editor with ThreadSanitizer (target=editor, tests=yes, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)
             cache-name: linux-editor-thread-sanitizer
@@ -100,7 +103,7 @@ jobs:
         run: |
           sudo rm -f /etc/apt/sources.list.d/microsoft-prod.list
           sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys EB8B81E14DA65431D7504EA8F63F0F2B90935439
-          sudo add-apt-repository "deb https://ppa.launchpadcontent.net/kisak/turtle/ubuntu focal main"
+          sudo add-apt-repository "deb https://ppa.launchpadcontent.net/kisak/turtle/ubuntu ${{ matrix.os == 'ubuntu-20.04' && 'focal' || 'jammy' }} main"
           sudo apt-get install -qq mesa-vulkan-drivers
 
       # TODO: Figure out somehow how to embed this one.

.github/workflows/static_checks.yml

@@ -9,7 +9,7 @@ concurrency:
 jobs:
   static-checks:
     name: Code style, file formatting, and docs
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     steps:
       - name: Checkout
         uses: actions/checkout@v4

.github/workflows/web_builds.yml

@@ -15,7 +15,7 @@ concurrency:
 
 jobs:
   web-template:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     name: ${{ matrix.name }}
     strategy:
       fail-fast: false

core/io/http_client_tcp.cpp

@@ -662,15 +662,16 @@ PackedByteArray HTTPClientTCP::read_response_body_chunk() {
 				chunk_left -= rec;
 
 				if (chunk_left == 0) {
-					if (chunk[chunk.size() - 2] != '\r' || chunk[chunk.size() - 1] != '\n') {
+					const int chunk_size = chunk.size();
+					if (chunk[chunk_size - 2] != '\r' || chunk[chunk_size - 1] != '\n') {
 						ERR_PRINT("HTTP Invalid chunk terminator (not \\r\\n)");
 						status = STATUS_CONNECTION_ERROR;
 						break;
 					}
 
-					ret.resize(chunk.size() - 2);
+					ret.resize(chunk_size - 2);
 					uint8_t *w = ret.ptrw();
-					memcpy(w, chunk.ptr(), chunk.size() - 2);
+					memcpy(w, chunk.ptr(), chunk_size - 2);
 					chunk.clear();
 				}
 

core/io/packet_peer_udp.cpp

@@ -105,6 +105,19 @@ Error PacketPeerUDP::get_packet(const uint8_t **r_buffer, int &r_buffer_size) {
 		return ERR_UNAVAILABLE;
 	}
 
+/* Bogus GCC warning here:
+ * In member function 'int RingBuffer<T>::read(T*, int, bool) [with T = unsigned char]',
+ *     inlined from 'virtual Error PacketPeerUDP::get_packet(const uint8_t**, int&)' at core/io/packet_peer_udp.cpp:112:9,
+ *     inlined from 'virtual Error PacketPeerUDP::get_packet(const uint8_t**, int&)' at core/io/packet_peer_udp.cpp:99:7:
+ * Error: ./core/ring_buffer.h:68:46: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=]
+ *   68 |                                 p_buf[dst++] = read[pos + i];
+ *      |                                 ~~~~~~~~~~~~~^~~~~~~
+ */
+#if defined(__GNUC__) && !defined(__clang__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic warning "-Wstringop-overflow=0"
+#endif
+
 	uint32_t size = 0;
 	uint8_t ipv6[16] = {};
 	rb.read(ipv6, 16, true);
@@ -115,6 +128,11 @@ Error PacketPeerUDP::get_packet(const uint8_t **r_buffer, int &r_buffer_size) {
 	--queue_count;
 	*r_buffer = packet_buffer;
 	r_buffer_size = size;
+
+#if defined(__GNUC__) && !defined(__clang__)
+#pragma GCC diagnostic pop
+#endif
+
 	return OK;
 }
 

core/io/stream_peer.cpp

@@ -223,13 +223,13 @@ void StreamPeer::put_var(const Variant &p_variant, bool p_full_objects) {
 }
 
 uint8_t StreamPeer::get_u8() {
-	uint8_t buf[1];
+	uint8_t buf[1] = {};
 	get_data(buf, 1);
 	return buf[0];
 }
 
 int8_t StreamPeer::get_8() {
-	uint8_t buf[1];
+	uint8_t buf[1] = {};
 	get_data(buf, 1);
 	return buf[0];
 }

scene/2d/tile_map.cpp

@@ -75,7 +75,8 @@ void TileMap::_set_tile_map_data_using_compatibility_format(int p_layer, TileMap
 	for (int i = 0; i < c; i += offset) {
 		const uint8_t *ptr = (const uint8_t *)&r[i];
 		uint8_t local[12];
-		for (int j = 0; j < ((p_format >= TileMapDataFormat::TILE_MAP_DATA_FORMAT_2) ? 12 : 8); j++) {
+		const int buffer_size = (format == TILE_MAP_DATA_FORMAT_2) ? 12 : 8;
+		for (int j = 0; j < buffer_size; j++) {
 			local[j] = ptr[j];
 		}