linux-user: zero fstat buffer to initialize nsec fields
The fstat implementation does not initialize the nanosecond fields in the
stat buffer; this caused funny values to turn up there, preventing, for
instance, cp -p from preserving timestamps because utimensat rejected
the out-of-bounds nanosecond values. Resetting the entire structure
to zero fixes that.
Signed-off-by: Ulrich Hecht <uli@suse.de>
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 7eb09fa..25b95ea 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -5529,6 +5529,7 @@
if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
goto efault;
+ memset(target_st, 0, sizeof(*target_st));
__put_user(st.st_dev, &target_st->st_dev);
__put_user(st.st_ino, &target_st->st_ino);
__put_user(st.st_mode, &target_st->st_mode);