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[v5,02/10] linux-user/strace: Display invalid pointer in print_timeval()

Message ID 20181010223656.31632-3-f4bug@amsat.org
State New
Headers show
Series linux-user: strace improvements | expand

Commit Message

Philippe Mathieu-Daudé Oct. 10, 2018, 10:36 p.m. UTC 
Suggested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 linux-user/strace.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
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Patch

diff --git a/linux-user/strace.c b/linux-user/strace.c
index 33f4a506a2..c95557bf83 100644
--- a/linux-user/strace.c
+++ b/linux-user/strace.c
@@ -1173,8 +1173,10 @@  print_timeval(abi_ulong tv_addr, int last)
         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);