Re: [syzbot] [wireguard?] KASAN: slab-use-after-free Write in enqueue_timer

From: Jakub Kicinski
Date: Wed May 24 2023 - 11:34:23 EST


On Wed, 24 May 2023 10:24:31 +0200 Dmitry Vyukov wrote:
> FWIW There are more report examples on the dashboard.
> There are some that don't mention wireguard nor usbnet, e.g.:
> https://syzkaller.appspot.com/text?tag=CrashReport&x=17dd2446280000
> So that's probably red herring. But they all seem to mention alloc_netdev_mqs.

While we have you, let me ask about the possibility of having vmcore
access - I think it'd be very useful to solve this mystery.
With a bit of luck the timer still has the function set.