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Diffstat (limited to 'arch/x86/kernel/acpi/wakeup_64.S')
-rw-r--r--arch/x86/kernel/acpi/wakeup_64.S9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/kernel/acpi/wakeup_64.S b/arch/x86/kernel/acpi/wakeup_64.S
index 169963f471bb..50b8ed0317a3 100644
--- a/arch/x86/kernel/acpi/wakeup_64.S
+++ b/arch/x86/kernel/acpi/wakeup_64.S
@@ -109,6 +109,15 @@ ENTRY(do_suspend_lowlevel)
movq pt_regs_r14(%rax), %r14
movq pt_regs_r15(%rax), %r15
+#ifdef CONFIG_KASAN
+ /*
+ * The suspend path may have poisoned some areas deeper in the stack,
+ * which we now need to unpoison.
+ */
+ movq %rsp, %rdi
+ call kasan_unpoison_task_stack_below
+#endif
+
xorl %eax, %eax
addq $8, %rsp
FRAME_END