1 files changed, 4 insertions, 0 deletions

diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index 9c8652974f8e..1596e6bfea6f 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -17,6 +17,7 @@
 #include <linux/bug.h>
 #include <linux/nmi.h>
 #include <linux/sysfs.h>
+#include <linux/kasan.h>
 
 #include <asm/cpu_entry_area.h>
 #include <asm/stacktrace.h>
@@ -346,7 +347,10 @@ void oops_end(unsigned long flags, struct pt_regs *regs, int signr)
          * We're not going to return, but we might be on an IST stack or
          * have very little stack space left.  Rewind the stack and kill
          * the task.
+         * Before we rewind the stack, we have to tell KASAN that we're going to
+         * reuse the task stack and that existing poisons are invalid.
          */
+        kasan_unpoison_task_stack(current);
         rewind_stack_do_exit(signr);
 }
 NOKPROBE_SYMBOL(oops_end);