Hello,
syzbot found the following issue on:
HEAD commit: a5b00f5b78b7 Merge branch 'hns3-fixres'
git tree: net
console output: https://syzkaller.appspot.com/x/log.txt?x=105d68bbf00000
kernel config: https://syzkaller.appspot.com/x/.config?x=20ac3e0ebf0db3bd
dashboard link: https://syzkaller.appspot.com/bug?extid=9cbc6bed3a22f1d37395
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=143b22abf00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=125194eff00000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: [email protected]
netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
=============================
WARNING: suspicious RCU usage
5.19.0-rc1-syzkaller-00254-ga5b00f5b78b7 #0 Not tainted
-----------------------------
net/ipv6/addrconf
---
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syzbot has bisected this issue to:
commit c2ff53d8049f30098153cd2d1299a44d7b124c57
Author: Xuan Zhuo <[email protected]>
Date: Thu Feb 18 20:50:02 2021 +0000
net: Add priv_flags for allow tx skb without linear
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11596838080000
start commit: a5b00f5b78b7 Merge branch 'hns3-fixres'
git tree: net
final oops: https://syzkaller.appspot.com/x/report.txt?x=13596838080000
console output: https://syzkaller.appspot.com/x/log.txt?x=15596838080000
kernel config: https://syzkaller.appspot.com/x/.config?x=20ac3e0ebf0db3bd
dashboard link: https://syzkaller.appspot.com/bug?extid=9cbc6bed3a22f1d37395
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=143b22abf00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=125194eff00000
Reported-by: [email protected]
Fixes: c2ff53d8049f ("net: Add priv_flags for allow tx skb without linear")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
On Thu, 23 Jun 2022 00:35:13 -0700, syzbot <[email protected]> wrote:
> syzbot has bisected this issue to:
>
> commit c2ff53d8049f30098153cd2d1299a44d7b124c57
> Author: Xuan Zhuo <[email protected]>
> Date: Thu Feb 18 20:50:02 2021 +0000
>
> net: Add priv_flags for allow tx skb without linear
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11596838080000
> start commit: a5b00f5b78b7 Merge branch 'hns3-fixres'
> git tree: net
> final oops: https://syzkaller.appspot.com/x/report.txt?x=13596838080000
> console output: https://syzkaller.appspot.com/x/log.txt?x=15596838080000
> kernel config: https://syzkaller.appspot.com/x/.config?x=20ac3e0ebf0db3bd
> dashboard link: https://syzkaller.appspot.com/bug?extid=9cbc6bed3a22f1d37395
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=143b22abf00000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=125194eff00000
>
> Reported-by: [email protected]
> Fixes: c2ff53d8049f ("net: Add priv_flags for allow tx skb without linear")
I think it's unlikely that my patch is causing the problem, because my patch is
very simple and doesn't have any effect on the kernel. I don't know if there is
something wrong.
I used the above config (make olddefconfig) to compile this commit, and it
crashed directly after starting it in qemu.
Thanks.
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
#syz fix: x86/kvm: Fix broken irq restoration in kvm_wait
On Thu, Jun 23, 2022 at 9:35 AM syzbot
<[email protected]> wrote:
>
> syzbot has bisected this issue to:
>
> commit c2ff53d8049f30098153cd2d1299a44d7b124c57
> Author: Xuan Zhuo <[email protected]>
> Date: Thu Feb 18 20:50:02 2021 +0000
>
> net: Add priv_flags for allow tx skb without linear
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11596838080000
> start commit: a5b00f5b78b7 Merge branch 'hns3-fixres'
> git tree: net
> final oops: https://syzkaller.appspot.com/x/report.txt?x=13596838080000
> console output: https://syzkaller.appspot.com/x/log.txt?x=15596838080000
> kernel config: https://syzkaller.appspot.com/x/.config?x=20ac3e0ebf0db3bd
> dashboard link: https://syzkaller.appspot.com/bug?extid=9cbc6bed3a22f1d37395
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=143b22abf00000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=125194eff00000
>
> Reported-by: [email protected]
> Fixes: c2ff53d8049f ("net: Add priv_flags for allow tx skb without linear")
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
>