commit 152fe65f300e1819d59b80477d3e0999b4d5d7d2 upstream. When enabled, KASAN enlarges function's stack-frames. Pushing quite a few over the current threshold. This can mainly be seen on 32-bit architectures where the present limit (when !GCC) is a lowly 1024-Bytes. Link: https://lkml.kernel.org/r/20221125120750.3537134-3-lee@xxxxxxxxxx Signed-off-by: Lee Jones <lee@xxxxxxxxxx> Acked-by: Arnd Bergmann <arnd@xxxxxxxx> Cc: Alex Deucher <alexander.deucher@xxxxxxx> Cc: "Christian König" <christian.koenig@xxxxxxx> Cc: Daniel Vetter <daniel@xxxxxxxx> Cc: David Airlie <airlied@xxxxxxxxx> Cc: Harry Wentland <harry.wentland@xxxxxxx> Cc: Leo Li <sunpeng.li@xxxxxxx> Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx> Cc: Maxime Ripard <mripard@xxxxxxxxxx> Cc: Nathan Chancellor <nathan@xxxxxxxxxx> Cc: Nick Desaulniers <ndesaulniers@xxxxxxxxxx> Cc: "Pan, Xinhui" <Xinhui.Pan@xxxxxxx> Cc: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx> Cc: Thomas Zimmermann <tzimmermann@xxxxxxx> Cc: Tom Rix <trix@xxxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> [Lee: Back-ported to linux-5.10.y] Signed-off-by: Lee Jones <lee@xxxxxxxxxx> --- lib/Kconfig.debug | 1 + 1 file changed, 1 insertion(+) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index ce796ca869c22..ea0628a0116d0 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -298,6 +298,7 @@ config FRAME_WARN int "Warn for stack frames larger than" range 0 8192 default 2048 if GCC_PLUGIN_LATENT_ENTROPY + default 1280 if KASAN && !64BIT default 1280 if (!64BIT && PARISC) default 1024 if (!64BIT && !PARISC) default 2048 if 64BIT -- 2.39.0.rc0.267.gcb52ba06e7-goog
