From 8e5e19ee4193acfe17ce43e708c79211c11f5779 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Fri, 8 Jul 2022 20:45:33 +0530 Subject: linux-user/aarch64: Verify extra record lock succeeded Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson Message-id: 20220708151540.18136-39-richard.henderson@linaro.org Signed-off-by: Peter Maydell --- linux-user/aarch64/signal.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/linux-user/aarch64/signal.c b/linux-user/aarch64/signal.c index 8fbe98d72f..9ff79da4be 100644 --- a/linux-user/aarch64/signal.c +++ b/linux-user/aarch64/signal.c @@ -340,6 +340,9 @@ static int target_restore_sigframe(CPUARMState *env, __get_user(extra_size, &((struct target_extra_context *)ctx)->size); extra = lock_user(VERIFY_READ, extra_datap, extra_size, 0); + if (!extra) { + return 1; + } break; default: -- cgit v1.2.3