diff --git a/test/core/util/ubsan_suppressions.txt b/test/core/util/ubsan_suppressions.txt
index 2268adc169f..63898ea3b1c 100644
--- a/test/core/util/ubsan_suppressions.txt
+++ b/test/core/util/ubsan_suppressions.txt
@@ -15,3 +15,17 @@ enum:message_compress_test
 enum:transport_security_test
 enum:algorithm_test
 alignment:transport_security_test
+# TODO(jtattermusch): address issues and remove the supressions
+nonnull-attribute:gsec_aes_gcm_aead_crypter_decrypt_iovec
+nonnull-attribute:gsec_test_random_encrypt_decrypt
+nonnull-attribute:gsec_test_multiple_random_encrypt_decrypt
+nonnull-attribute:gsec_test_copy
+nonnull-attribute:gsec_test_encrypt_decrypt_test_vector
+alignment:absl::little_endian::Store64
+alignment:absl::little_endian::Load64
+float-divide-by-zero:grpc::testing::postprocess_scenario_result
+enum:grpc_op_string
+nonnull-attribute:grpc_lb_addresses_copy
+signed-integer-overflow:chrono
+enum:grpc_http2_error_to_grpc_status
+enum:grpc_chttp2_cancel_stream
\ No newline at end of file