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@kernel.org Signed-off-by: Lee Jones lee@kernel.org Acked-by: Arnd Bergmann arnd@arndb.de Cc: Alex Deucher alexander.deucher@amd.com Cc: "Christian König" christian.koenig@amd.com Cc: Daniel Vetter daniel@ffwll.ch Cc: David Airlie airlied@gmail.com Cc: Harry Wentland harry.wentland@amd.com Cc: Leo Li sunpeng.li@amd.com Cc: Maarten Lankhorst maarten.lankhorst@linux.intel.com Cc: Maxime Ripard mripard@kernel.org Cc: Nathan Chancellor nathan@kernel.org Cc: Nick Desaulniers ndesaulniers@google.com Cc: "Pan, Xinhui" Xinhui.Pan@amd.com Cc: Rodrigo Siqueira Rodrigo.Siqueira@amd.com Cc: Thomas Zimmermann tzimmermann@suse.de Cc: Tom Rix trix@redhat.com Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org [Lee: Back-ported to linux-5.10.y] Signed-off-by: Lee Jones lee@kernel.org --- 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