When building with the latent_entropy plugin, set the default CONFIG_FRAME_WARN to 2048, since some __init functions have many basic blocks that, when instrumented by the latent_entropy plugin, grow beyond 1024 byte stack size on 32-bit builds.
Reported-by: kbuild test robot <[email protected]> Cc: Emese Revfy <[email protected]> Signed-off-by: Kees Cook <[email protected]> --- lib/Kconfig.debug | 1 + 1 file changed, 1 insertion(+) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 33bc56cf60d7..b01e547d4d04 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -198,6 +198,7 @@ config FRAME_WARN int "Warn for stack frames larger than (needs gcc 4.4)" range 0 8192 default 0 if KASAN + default 2048 if GCC_PLUGIN_LATENT_ENTROPY default 1024 if !64BIT default 2048 if 64BIT help -- 2.7.4 -- Kees Cook Nexus Security
