diff mbox series

[v2,10/17] arm64: disable kretprobes with SCS

Message ID 20191024225132.13410-11-samitolvanen@google.com (mailing list archive)
State New, archived
Headers show
Series add support for Clang's Shadow Call Stack | expand

Commit Message

Sami Tolvanen Oct. 24, 2019, 10:51 p.m. UTC 
With CONFIG_KRETPROBES, function return addresses are modified to
redirect control flow to kretprobe_trampoline. This is incompatible
with SCS.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
---
 arch/arm64/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 8cda176dad9a..42867174920f 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -165,7 +165,7 @@  config ARM64
 	select HAVE_STACKPROTECTOR
 	select HAVE_SYSCALL_TRACEPOINTS
 	select HAVE_KPROBES
-	select HAVE_KRETPROBES
+	select HAVE_KRETPROBES if !SHADOW_CALL_STACK
 	select HAVE_GENERIC_VDSO
 	select IOMMU_DMA if IOMMU_SUPPORT
 	select IRQ_DOMAIN