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-rw-r--r--arch/arm/kernel/signal.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index 962851144099..c0ba8afee42f 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -470,6 +470,11 @@ setup_frame(int usig, struct k_sigaction *ka, sigset_t *set, struct pt_regs *reg
if (!frame)
return 1;
+ /*
+ * Set uc.uc_flags to a value which sc.trap_no would never have.
+ */
+ __put_user_error(0x5ac3c35a, &frame->uc.uc_flags, err);
+
err |= setup_sigframe(frame, regs, set);
if (err == 0)
err = setup_return(regs, ka, frame->retcode, frame, usig);