diff --git a/os/hal/platforms/STM32/mac_lld.c b/os/hal/platforms/STM32/mac_lld.c
index 1a7687d2f..0d5590006 100644
--- a/os/hal/platforms/STM32/mac_lld.c
+++ b/os/hal/platforms/STM32/mac_lld.c
@@ -535,7 +535,7 @@ msg_t mac_lld_get_receive_descriptor(MACDriver *macp,
     }
     /* Invalid frame found, purging.*/
     rdes->rdes0 = STM32_RDES0_OWN;
-    macp->rxptr = (stm32_eth_rx_descriptor_t *)rdes->rdes3;
+    rdes = macp->rxptr = (stm32_eth_rx_descriptor_t *)rdes->rdes3;
   }
 
   chSysUnlock();
diff --git a/readme.txt b/readme.txt
index 4ecf7ce5f..2ca5b898c 100644
--- a/readme.txt
+++ b/readme.txt
@@ -82,6 +82,8 @@
 *****************************************************************************
 
 *** 2.5.2 ***
+- FIX: Fixed error in STM32 MAC driver degrades performance (bug 3598719)
+  (backported to 2.4.4).
 - FIX: Fixed warning in STM32 ICU driver using IAR compiler (bug 3598177)
   (backported to 2.4.3).
 - FIX: Fixed wrong SPI path in platform_f105_f107.mk (bug 3598151).