On 10/13/25 10:08 AM, Michael S. Tsirkin wrote: > On Mon, Oct 13, 2025 at 09:37:29AM +0200, Paolo Abeni wrote: >> On 10/13/25 9:20 AM, Jason Wang wrote: >>> On Mon, Oct 13, 2025 at 1:29 PM Jason Wang <[email protected]> wrote: >>>> On Sat, Oct 11, 2025 at 3:40 PM Jason Wang <[email protected]> wrote: >>>>> >>>>> #syz test >>>>> >>>>> On Sat, Oct 11, 2025 at 4:38 AM syzbot >>>>> <[email protected]> wrote: >>>> >>>> Paolo, it looks like the GSO tunnel features will leave uninitialized >>>> vnet header field which trigger KMSAN warning. >>>> >>>> Please have a look at the patch (which has been tested by syzbot) or >>>> propose another one. >>> >>> Forget the attachment. >> >> I have a few questions. The report mentions both UaF and uninit; the >> patch addresses "just" the uninit access. It's not clear to me if and >> how the UaF is addressed, and why/if it's related to the uninit access. > > I'd like to understand that, too.
Somewhat related: the syzbot dashboard reports that the issue is no more reproducible on plain Linus' tree: https://syzkaller.appspot.com/bug?extid=ac856b8b866cca41352c """ * repros no longer work on HEAD. """ Possibly there was some external problem? /P
