File qemu-0.11-git-user-linux-zero_nstat_buffer.patch of Package qemu-svn

File qemu-0.11-git-user-linux-zero_nstat_buffer.patch of Package qemu-svn (Revision f24ec4ea72dedb6c026b271bdc56068b)

Currently displaying revision f24ec4ea72dedb6c026b271bdc56068b, show latest

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>
---
 linux-user/syscall.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 2dc86ff..b413b08 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -5523,6 +5523,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
 
                 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);
-- 
1.6.2.1