commit 8f93089d0a3cde294e8bb16978a3f7fd0b2df2a3
author Philippe Mathieu-Daudé <f4bug@amsat.org> Mon Oct 21 13:48:49 2019 +0200
committer Laurent Vivier <laurent@vivier.eu> Mon Oct 21 15:22:37 2019 +0200
tree 758f1d7e058ef9ee39ae0e8f1f94c2b0d34f9440
parent 1645fb5a1e537f85eda744bfa6e9d3dda047ba28

linux-user/strace: Display invalid pointer in print_timeval()

Suggested-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20191021114857.20538-2-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user/strace.c

diff --git a/linux-user/strace.c b/linux-user/strace.c
index c80e93b..f326c35 100644
--- a/linux-user/strace.c
+++ b/linux-user/strace.c
@@ -1243,8 +1243,10 @@
         struct target_timeval *tv;
 
         tv = lock_user(VERIFY_READ, tv_addr, sizeof(*tv), 1);
-        if (!tv)
+        if (!tv) {
+            print_pointer(tv_addr, last);
             return;
+        }
         gemu_log("{" TARGET_ABI_FMT_ld "," TARGET_ABI_FMT_ld "}%s",
             tswapal(tv->tv_sec), tswapal(tv->tv_usec), get_comma(last));
         unlock_user(tv, tv_addr, 0);