Hi, With kernel 5.11 we can enable MTE (heap) tagging, in-kernel support, with the following arm64 config update: ************************************************** @@ -11577,7 +11577,11 @@ CONFIG_CC_HAS_KASAN_GENERIC=y # CONFIG_CC_HAS_KASAN_SW_TAGS is not set CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y # CONFIG_KASAN is not set CONFIG_KASAN=y # CONFIG_KASAN_GENERIC is not set CONFIG_KASAN_HW_TAGS=y CONFIG_KASAN_STACK=1 # CONFIG_TEST_KASAN_MODULE is not set # end of Memory Debugging # CONFIG_DEBUG_SHIRQ is not set ************************************************** KASAN seems to be a good candidate for a debug kernel. But I noticed that KASAN is not enabled at all for kernels built in openSUSE Tumbleweed. Is it on purpose? I plan some testing of CONFIG_KASAN_HW_TAGS soon. Cheers, Guillaume