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From: Peter Maydell <peter.maydell@linaro.org>
To: qemu-devel@nongnu.org
Subject: [PULL 38/45] linux-user/aarch64: Verify extra record lock succeeded
Date: Mon, 11 Jul 2022 14:57:43 +0100
Message-Id: <20220711135750.765803-39-peter.maydell@linaro.org>
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From: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
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 8fbe98d72f2..9ff79da4be0 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 =3D lock_user(VERIFY_READ, extra_datap, extra_size, 0);
+ if (!extra) {
+ return 1;
+ }
break;
=20
default:
--=20
2.25.1