diff --git a/.github/workflows/ci-unix-static-sanitized.yml b/.github/workflows/ci-unix-static-sanitized.yml
index b9c5db336a..90c8d989ba 100644
--- a/.github/workflows/ci-unix-static-sanitized.yml
+++ b/.github/workflows/ci-unix-static-sanitized.yml
@@ -84,6 +84,11 @@ jobs:
         run: |
           sed -i -e 's/cmake -S \(.*\)/cmake -S \1 -DWITH_SIMD=OFF/g' libjpeg.cmd
           ./libjpeg.cmd
+        env:
+          CFLAGS: ${{ env.CI_CFLAGS }}
+          CXXFLAGS: ${{ env.CI_CXXFLAGS }}
+          LDFLAGS: ${{ env.CI_LDFLAGS }}
+          LD_LIBRARY_PATH: ${{ env.CI_LD_LIBRARY_PATH }}
 
       - name: Build aom for msan
         if: ${{ (steps.cache-hit.outputs.hit == 'false') && (matrix.sanitizer == 'memory')}}
diff --git a/apps/shared/avifjpeg.c b/apps/shared/avifjpeg.c
index 024c911a32..262d297e41 100644
--- a/apps/shared/avifjpeg.c
+++ b/apps/shared/avifjpeg.c
@@ -948,6 +948,7 @@ static avifBool avifJPEGReadInternal(FILE * f,
 
         int row_stride = cinfo.output_width * cinfo.output_components;
         JSAMPARRAY buffer = (*cinfo.mem->alloc_sarray)((j_common_ptr)&cinfo, JPOOL_IMAGE, row_stride, 1);
+        AVIF_ANNOTATE_MEMORY_IS_INITIALIZED(buffer, row_stride);
 
         avif->width = cinfo.output_width;
         avif->height = cinfo.output_height;
@@ -994,6 +995,7 @@ static avifBool avifJPEGReadInternal(FILE * f,
                 goto cleanup;
             }
             uint8_t * pixelRow = &rgb.pixels[row * rgb.rowBytes];
+            AVIF_ANNOTATE_MEMORY_IS_INITIALIZED(buffer, sizeof(buffer[0]));
             AVIF_ANNOTATE_MEMORY_IS_INITIALIZED(buffer[0], rgb.rowBytes);
             memcpy(pixelRow, buffer[0], rgb.rowBytes);
             ++row;