diff --git a/test/test-functions b/test/test-functions
index 50c6e96902..b269cd3524 100644
--- a/test/test-functions
+++ b/test/test-functions
@@ -386,6 +386,18 @@ printf "[Service]\nEnvironment=ASAN_OPTIONS=\$DEFAULT_ASAN_OPTIONS:log_path=/sys
 mkdir -p /etc/systemd/system/systemd-hwdb-update.service.d
 printf "[Unit]\nConditionVirtualization=container\n\n[Service]\nTimeoutSec=180s\n" >/etc/systemd/system/systemd-hwdb-update.service.d/env-override.conf
 
+# The 'mount' utility doesn't behave well under libasan, causing unexpected
+# fails during boot and subsequent test results check:
+# bash-5.0# mount -o remount,rw -v /
+# mount: /dev/sda1 mounted on /.
+# bash-5.0# echo \$?
+# 1
+# Let's workaround this by clearing the previously set LD_PRELOAD env variable,
+# so the libasan library is not loaded for this particular service
+REMOUNTFS_CONF_DIR=/etc/systemd/system/systemd-remount-fs.service.d
+mkdir -p "\$REMOUNTFS_CONF_DIR"
+printf "[Service]\nUnsetEnvironment=LD_PRELOAD\n" >"\$REMOUNTFS_CONF_DIR/env.conf"
+
 export ASAN_OPTIONS=\$DEFAULT_ASAN_OPTIONS:log_path=/systemd.asan.log UBSAN_OPTIONS=\$DEFAULT_UBSAN_OPTIONS
 exec  $ROOTLIBDIR/systemd "\$@"
 EOF