diff --git a/ddprof-lib/src/main/cpp/libraryPatcher.h b/ddprof-lib/src/main/cpp/libraryPatcher.h
index f54e2dc1d..a1d7829c0 100644
--- a/ddprof-lib/src/main/cpp/libraryPatcher.h
+++ b/ddprof-lib/src/main/cpp/libraryPatcher.h
@@ -40,7 +40,8 @@ typedef struct _socketPatchedLibrary {
 enum SocketPatchTarget : u8 {
   SOCKET_PATCH_NONE = 0,
   SOCKET_PATCH_STANDARD_JDK_NETWORK,
-  SOCKET_PATCH_IBM_JCL_BRIDGE
+  SOCKET_PATCH_IBM_JCL_BRIDGE,
+  SOCKET_PATCH_NETTY_NATIVE_EPOLL
 };
 
 const int SOCKET_BASE_TABLE_SIZE = MAX_NATIVE_LIBS * 2;
diff --git a/ddprof-lib/src/main/cpp/libraryPatcher_linux.cpp b/ddprof-lib/src/main/cpp/libraryPatcher_linux.cpp
index 194925216..1d674a3ed 100644
--- a/ddprof-lib/src/main/cpp/libraryPatcher_linux.cpp
+++ b/ddprof-lib/src/main/cpp/libraryPatcher_linux.cpp
@@ -52,7 +52,21 @@ static const char* library_basename(const char* path) {
 
 static SocketPatchTarget socket_patch_target_for_library(
     CodeCache* lib, const char* name, bool in_jdk_directory) {
-  if (lib == nullptr || name == nullptr || !in_jdk_directory) {
+  if (lib == nullptr || name == nullptr) {
+    return SOCKET_PATCH_NONE;
+  }
+
+  // Netty's native epoll transport ships its own .so outside the JDK's lib
+  // directory, so it is checked ahead of the in_jdk_directory gate below.
+  // Detection is by exported symbol rather than basename because the .so
+  // filename is relocated under shading (e.g. grpc-netty-shaded), while the
+  // JNI_OnLoad_/JNI_OnUnload_ suffix is not.
+  if (lib->findSymbol("JNI_OnLoad_netty_transport_native_epoll") != nullptr &&
+      lib->findSymbol("JNI_OnUnload_netty_transport_native_epoll") != nullptr) {
+    return SOCKET_PATCH_NETTY_NATIVE_EPOLL;
+  }
+
+  if (!in_jdk_directory) {
     return SOCKET_PATCH_NONE;
   }
 
diff --git a/ddprof-lib/src/test/cpp/nativeSocketInterposer_ut.cpp b/ddprof-lib/src/test/cpp/nativeSocketInterposer_ut.cpp
index ff1f8cb5d..d90313bf3 100644
--- a/ddprof-lib/src/test/cpp/nativeSocketInterposer_ut.cpp
+++ b/ddprof-lib/src/test/cpp/nativeSocketInterposer_ut.cpp
@@ -1103,6 +1103,36 @@ TEST(LibraryPatcherSocketStateTest,
   }
 }
 
+TEST(LibraryPatcherSocketStateTest, AdmitsNettyNativeEpollBySymbolOutsideJdkDirectory) {
+  CodeCache netty("libnetty_transport_native_epoll_x86_64.so");
+  CodeCache netty_shaded("libio_grpc_netty_shaded_netty_transport_native_epoll_x86_64.so");
+  CodeCache netty_partial("libnetty_transport_native_epoll_x86_64.so");
+
+  char marker_addresses[2] = {};
+  netty.add(&marker_addresses[0], 1, "JNI_OnLoad_netty_transport_native_epoll");
+  netty.add(&marker_addresses[1], 1, "JNI_OnUnload_netty_transport_native_epoll");
+  netty_shaded.add(&marker_addresses[0], 1, "JNI_OnLoad_netty_transport_native_epoll");
+  netty_shaded.add(&marker_addresses[1], 1, "JNI_OnUnload_netty_transport_native_epoll");
+  netty_partial.add(&marker_addresses[0], 1, "JNI_OnLoad_netty_transport_native_epoll");
+
+  // Admitted even though it is not located in the JDK's own lib directory,
+  // and regardless of the .so's basename (shading relocates the filename).
+  EXPECT_EQ(SOCKET_PATCH_NETTY_NATIVE_EPOLL,
+            LibraryPatcher::socket_patch_target_for_test(
+                &netty, "libnetty_transport_native_epoll_x86_64.so", false));
+  EXPECT_EQ(SOCKET_PATCH_NETTY_NATIVE_EPOLL,
+            LibraryPatcher::socket_patch_target_for_test(
+                &netty_shaded,
+                "libio_grpc_netty_shaded_netty_transport_native_epoll_x86_64.so",
+                false));
+
+  // Requires both symbols, mirroring the IBM JCL bridge's all-or-nothing check.
+  EXPECT_EQ(SOCKET_PATCH_NONE,
+            LibraryPatcher::socket_patch_target_for_test(
+                &netty_partial,
+                "libnetty_transport_native_epoll_x86_64.so", false));
+}
+
 TEST_F(LibraryPatcherImportTest, PatchesAndRestoresEveryImportLocation) {
   initializeImports(3);
   void* originals[3] = {imports[0], imports[1], imports[2]};