Re: ifconfig ioctl input validation

2019-10-24 Thread Alexander Bluhm
On Wed, Oct 16, 2019 at 11:42:16PM +0200, Alexander Bluhm wrote: > syszcaller shows that we lack kernel input validation when setting > addresses. > > https://syzkaller.appspot.com/bug?id=4196491189556b467eafcc8daf3f9a051b4123a0 > > Althogh this is not exactly the ioctl(2) syzcaller found, I would

ifconfig ioctl input validation

2019-10-16 Thread Alexander Bluhm
Hi, syszcaller shows that we lack kernel input validation when setting addresses. https://syzkaller.appspot.com/bug?id=4196491189556b467eafcc8daf3f9a051b4123a0 Althogh this is not exactly the ioctl(2) syzcaller found, I would like to start fixing SIOCAIFADDR and SIOCDIFADDR. Others will be fixe