diff --git a/env/posix/ocf_env.h b/env/posix/ocf_env.h
index 9220d1e..91167cc 100644
--- a/env/posix/ocf_env.h
+++ b/env/posix/ocf_env.h
@@ -1,6 +1,6 @@
 /*
  * Copyright(c) 2019-2022 Intel Corporation
- * Copyright(c) 2023-2024 Huawei Technologies
+ * Copyright(c) 2023-2025 Huawei Technologies
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
@@ -378,12 +378,12 @@ typedef struct {
 
 static inline int env_atomic_read(const env_atomic *a)
 {
-	return a->counter; /* TODO */
+	return __atomic_load_n(&a->counter, __ATOMIC_SEQ_CST);
 }
 
 static inline void env_atomic_set(env_atomic *a, int i)
 {
-	a->counter = i; /* TODO */
+	__atomic_store_n(&a->counter, i, __ATOMIC_SEQ_CST);
 }
 
 static inline void env_atomic_add(int i, env_atomic *a)
@@ -453,12 +453,12 @@ static inline int env_atomic_add_unless(env_atomic *a, int i, int u)
 
 static inline long env_atomic64_read(const env_atomic64 *a)
 {
-	return a->counter; /* TODO */
+	return __atomic_load_n(&a->counter, __ATOMIC_SEQ_CST);
 }
 
 static inline void env_atomic64_set(env_atomic64 *a, long i)
 {
-	a->counter = i; /* TODO */
+	__atomic_store_n(&a->counter, i, __ATOMIC_SEQ_CST);
 }
 
 static inline void env_atomic64_add(long i, env_atomic64 *a)
diff --git a/src/metadata/metadata_raw_dynamic.c b/src/metadata/metadata_raw_dynamic.c
index 481fc01..85b8806 100644
--- a/src/metadata/metadata_raw_dynamic.c
+++ b/src/metadata/metadata_raw_dynamic.c
@@ -1,6 +1,6 @@
 /*
  * Copyright(c) 2012-2022 Intel Corporation
- * Copyright(c) 2024 Huawei Technologies
+ * Copyright(c) 2024-2025 Huawei Technologies
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
@@ -366,10 +366,10 @@ static void raw_dynamic_load_all_complete(
 {
 	context->cmpl(context->priv, error);
 
-	ocf_req_put(context->req);
 	env_secure_free(context->page, PAGE_SIZE);
 	env_free(context->zpage);
 	ctx_data_free(context->cache->owner, context->req->data);
+	ocf_req_put(context->req);
 	env_vfree(context);
 }
 
diff --git a/tests/functional/Makefile b/tests/functional/Makefile
index a10d65f..b7ad1e4 100644
--- a/tests/functional/Makefile
+++ b/tests/functional/Makefile
@@ -1,5 +1,6 @@
 #
 # Copyright(c) 2019-2022 Intel Corporation
+# Copyright(c) 2025 Huawei Technologies
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
@@ -11,9 +12,8 @@ INCDIR=$(ADAPTERDIR)/ocf/include
 WRAPDIR=$(ADAPTERDIR)/c/wrappers
 HELPDIR=$(ADAPTERDIR)/c/helpers
 
-CC=gcc
-CFLAGS=-g -Wall -I$(INCDIR) -I$(SRCDIR)/ocf/env
-LDFLAGS=-pthread -lz
+CFLAGS=-g -Wall -I$(INCDIR) -I$(SRCDIR)/ocf/env $(OPT_CFLAGS)
+LDFLAGS=-pthread #-lz
 
 SRC=$(shell find $(SRCDIR) $(WRAPDIR) $(HELPDIR) -name \*.c)
 OBJS=$(patsubst %.c, %.o, $(SRC))
@@ -48,6 +48,7 @@ distclean: clean
 	@rm -rf $(OCFLIB) $(OBJS)
 	@rm -rf $(SRCDIR)/ocf
 	@rm -rf $(INCDIR)/ocf
+	@find . -name *.gc* -delete
 	@echo "  DISTCLEAN "
 
 .PHONY: all clean sync config_random distclean
diff --git a/tests/functional/run_with_sanitizers.sh b/tests/functional/run_with_sanitizers.sh
new file mode 100755
index 0000000..3805c22
--- /dev/null
+++ b/tests/functional/run_with_sanitizers.sh
@@ -0,0 +1,37 @@
+#
+# Copyright(c) 2019-2022 Intel Corporation
+# Copyright(c) 2025 Huawei Technologies
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+#!/usr/bin/env bash
+
+LIB_DIR="/lib/x86_64-linux-gnu/"
+
+ASAN_LIB="$LIB_DIR/libasan.so.6"
+TSAN_LIB="$LIB_DIR/libtsan.so.0"
+UBSAN_LIB="$LIB_DIR/libubsan.so.1"
+
+# Path to test file/directory
+PYOCF_TESTS_PATH="tests/"
+
+echo "Cleaning and building with Address Sanitizer"
+make distclean
+OPT_CFLAGS="-fsanitize=address" make -j >/dev/null
+echo "Running tests, please wait..."
+LD_PRELOAD=$ASAN_LIB ASAN_OPTIONS=log_output=asan_log.txt PYTHONMALLOC=malloc pytest $PYOCF_TESTS_PATH 2>&1 | tee asan_output.txt
+echo "Done, check asan_log.txt"
+
+echo "Cleaning and building with Thread Sanitizer"
+make distclean
+OPT_CFLAGS="-fsanitize=thread -fno-omit-frame-pointer" make -j >/dev/null
+echo "Running tests, please wait..."
+LD_PRELOAD=$TSAN_LIB TSAN_OPTIONS=log_output=tsan_log.txt pytest -s $PYOCF_TESTS_PATH 2>&1 | tee tsan_output.txt
+echo "Done, check tsan_log.txt" 
+
+echo "Cleaning and building with Undefined Behaviour Sanitizer"
+make distclean
+OPT_CFLAGS="-fsanitize=undefined -fno-sanitize=alignment" make -j >/dev/null
+echo "Running tests, please wait..."
+LD_PRELOAD=$UBSAN_LIB UBSAN_OPTIONS=log_output=ubsan_log.txt pytest -s $PYOCF_TESTS_PATH 2>&1 | tee ubsan_output.txt
+echo "Done, check ubsan_output.txt"