Re: [PATCH] net: socket: don't set sk_uid to garbage value in ->setattr()

[David Miller]

From: Lorenzo Colitti <lorenzo@xxxxxxxxxx>
Date: Sun, 1 Jan 2017 16:57:23 +0900

> On Sat, Dec 31, 2016 at 8:42 AM, Eric Biggers <ebiggers3@xxxxxxxxx> wrote:
>> ->setattr() was recently implemented for socket files to sync the socket
>> inode's uid to the new 'sk_uid' member of struct sock.  It does this by
>> copying over the ia_uid member of struct iattr.  However, ia_uid is
>> actually only valid when ATTR_UID is set in ia_valid, indicating that
>> the uid is being changed, e.g. by chown.
>> [...]
>> -       if (!err) {
>> +       if (!err && (iattr->ia_valid & ATTR_UID)) {
> 
> Oops. Thanks for fixing this. Unit tested in
> https://android-review.googlesource.com/316594 .
> 
> Tested-by: Lorenzo Colitti <lorenzo@xxxxxxxxxx>
> Acked-by: Lorenzo Colitti <lorenzo@xxxxxxxxxx>

Applied, thanks everyone.