* Re: general protection fault in vsock_poll
[not found] <00000000000099052605aafb5923@google.com>
@ 2020-07-29 8:59 ` syzbot
2020-07-29 9:40 ` Stefano Garzarella
0 siblings, 1 reply; 2+ messages in thread
From: syzbot @ 2020-07-29 8:59 UTC (permalink / raw)
To: davem, decui, jhansen, kuba, kvm, linux-kernel, netdev, sgarzare,
stefanha, syzkaller-bugs, virtualization
syzbot has bisected this issue to:
commit 408624af4c89989117bb2c6517bd50b7708a2fcd
Author: Stefano Garzarella <sgarzare@redhat.com>
Date: Tue Dec 10 10:43:06 2019 +0000
vsock: use local transport when it is loaded
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17e6489b100000
start commit: 92ed3019 Linux 5.8-rc7
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=1416489b100000
console output: https://syzkaller.appspot.com/x/log.txt?x=1016489b100000
kernel config: https://syzkaller.appspot.com/x/.config?x=84f076779e989e69
dashboard link: https://syzkaller.appspot.com/bug?extid=a61bac2fcc1a7c6623fe
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15930b64900000
Reported-by: syzbot+a61bac2fcc1a7c6623fe@syzkaller.appspotmail.com
Fixes: 408624af4c89 ("vsock: use local transport when it is loaded")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: general protection fault in vsock_poll
2020-07-29 8:59 ` general protection fault in vsock_poll syzbot
@ 2020-07-29 9:40 ` Stefano Garzarella
0 siblings, 0 replies; 2+ messages in thread
From: Stefano Garzarella @ 2020-07-29 9:40 UTC (permalink / raw)
To: netdev
Cc: davem, decui, jhansen, kuba, kvm, linux-kernel,
syzbot+a61bac2fcc1a7c6623fe, stefanha, syzkaller-bugs,
virtualization
On Wed, Jul 29, 2020 at 01:59:05AM -0700, syzbot wrote:
> syzbot has bisected this issue to:
>
> commit 408624af4c89989117bb2c6517bd50b7708a2fcd
> Author: Stefano Garzarella <sgarzare@redhat.com>
> Date: Tue Dec 10 10:43:06 2019 +0000
>
> vsock: use local transport when it is loaded
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17e6489b100000
> start commit: 92ed3019 Linux 5.8-rc7
> git tree: upstream
> final oops: https://syzkaller.appspot.com/x/report.txt?x=1416489b100000
> console output: https://syzkaller.appspot.com/x/log.txt?x=1016489b100000
> kernel config: https://syzkaller.appspot.com/x/.config?x=84f076779e989e69
> dashboard link: https://syzkaller.appspot.com/bug?extid=a61bac2fcc1a7c6623fe
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15930b64900000
>
> Reported-by: syzbot+a61bac2fcc1a7c6623fe@syzkaller.appspotmail.com
> Fixes: 408624af4c89 ("vsock: use local transport when it is loaded")
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
>
I'll take a look.
At first glance it seems strange, because if sk_state is TCP_ESTABLISHED,
the transport shouldn't be NULL, that's why we didn't put the check.
Stefano
^ permalink raw reply [flat|nested] 2+ messages in thread
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2020-07-29 8:59 ` general protection fault in vsock_poll syzbot
2020-07-29 9:40 ` Stefano Garzarella
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