diff --git a/.github/workflows/linux-aarch64.yml b/.github/workflows/linux-aarch64.yml
index 1079cf08c..739faac83 100644
--- a/.github/workflows/linux-aarch64.yml
+++ b/.github/workflows/linux-aarch64.yml
@@ -58,6 +58,20 @@ jobs:
     - name: test-simplestl-simplemath
       run: cd build-simplestl-simplemath && ctest --output-on-failure -j $(nproc)
 
+  asan:
+    runs-on: ubuntu-24.04-arm
+    steps:
+    - uses: actions/checkout@v5
+    - name: build
+      run: |
+        mkdir build && cd build
+        cmake -DCMAKE_BUILD_TYPE=relwithdebinfo -DNCNN_ASAN=ON -DNCNN_BUILD_TESTS=ON -DNCNN_SHARED_LIB=ON -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
+        cmake --build . -j $(nproc)
+    - name: test
+      run: |
+        cd build
+        ctest --output-on-failure -j $(nproc)
+
   aarch64:
     runs-on: ubuntu-24.04
     steps:
diff --git a/.github/workflows/linux-x64-cpu-gcc-san.yml b/.github/workflows/linux-x64-cpu-gcc-san.yml
deleted file mode 100644
index 98b31a32b..000000000
--- a/.github/workflows/linux-x64-cpu-gcc-san.yml
+++ /dev/null
@@ -1,42 +0,0 @@
-name: linux-x64-cpu-gcc-san
-on:
-  push:
-    branches: [master]
-    paths:
-    - '.github/workflows/linux-x64-cpu-gcc-san.yml'
-    - 'CMakeLists.txt'
-    - 'cmake/**'
-    - 'src/*'
-    - 'src/layer/*'
-    - 'src/layer/x86/**'
-    - 'tests/**'
-  pull_request:
-    branches: [master]
-    paths:
-    - '.github/workflows/linux-x64-cpu-gcc-san.yml'
-    - 'CMakeLists.txt'
-    - 'cmake/**'
-    - 'src/*'
-    - 'src/layer/*'
-    - 'src/layer/x86/**'
-    - 'tests/**'
-concurrency:
-  group: linux-x64-cpu-gcc-san-${{ github.ref }}
-  cancel-in-progress: true
-permissions:
-  contents: read
-
-jobs:
-  linux-gcc-san:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v5
-    - name: build
-      run: |
-        mkdir build && cd build
-        cmake -DCMAKE_BUILD_TYPE=debug -DNCNN_ASAN=ON -DNCNN_BUILD_TESTS=ON -DNCNN_SHARED_LIB=ON -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
-        cmake --build . -j $(nproc)
-    - name: test
-      run: |
-        cd build
-        ctest --output-on-failure -j $(nproc)
diff --git a/.github/workflows/linux-x64-cpu-gcc.yml b/.github/workflows/linux-x64-cpu-gcc.yml
index bb1483a53..c4b47f9fe 100644
--- a/.github/workflows/linux-x64-cpu-gcc.yml
+++ b/.github/workflows/linux-x64-cpu-gcc.yml
@@ -84,6 +84,20 @@ jobs:
     - name: test-noint8
       run: cd build-noint8 && ctest --output-on-failure -j $(nproc)
 
+  asan:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v5
+    - name: build
+      run: |
+        mkdir build && cd build
+        cmake -DCMAKE_BUILD_TYPE=relwithdebinfo -DNCNN_ASAN=ON -DNCNN_BUILD_TESTS=ON -DNCNN_SHARED_LIB=ON -DNCNN_BUILD_TOOLS=OFF -DNCNN_BUILD_EXAMPLES=OFF ..
+        cmake --build . -j $(nproc)
+    - name: test
+      run: |
+        cd build
+        ctest --output-on-failure -j $(nproc)
+
   linux-gcc-cpp03-nostdio-nostring-simplestl:
     runs-on: ubuntu-latest
     steps: