diff mbox series

[PULL,44/59] linux-user/s390x: Fix frame_addr corruption in setup_frame

Message ID 20210517181424.8093-45-laurent@vivier.eu
State Superseded
Headers show
Series None | expand

Commit Message

Laurent Vivier May 17, 2021, 6:14 p.m. UTC 
From: Richard Henderson <richard.henderson@linaro.org>


The original value of frame_addr is still required for
its use in the call to unlock_user_struct below.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Reviewed-by: David Hildenbrand <david@redhat.com>

Message-Id: <20210428193408.233706-13-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

---
 linux-user/s390x/signal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.31.1
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Patch

diff --git a/linux-user/s390x/signal.c b/linux-user/s390x/signal.c
index bc41b01c5deb..81ba59b46af5 100644
--- a/linux-user/s390x/signal.c
+++ b/linux-user/s390x/signal.c
@@ -168,7 +168,7 @@  void setup_frame(int sig, struct target_sigaction *ka,
     env->psw.addr = ka->_sa_handler;
 
     env->regs[2] = sig;
-    env->regs[3] = frame_addr += offsetof(typeof(*frame), sc);
+    env->regs[3] = frame_addr + offsetof(typeof(*frame), sc);
 
     /*
      * We forgot to include these in the sigcontext.