kernel panic: stack is corrupted in lock_release (2)

[syzbot]

Hello,

syzbot found the following crash on:

HEAD commit: dd7078f0 enetc: Add missing call to 'pci_free_irq_vectors(..
git tree: net
console output: https://syzkaller.appspot.com/x/log.txt?x=115fe0fa600000
kernel config: https://syzkaller.appspot.com/x/.config?x=2a6a2b9826fdadf9
dashboard link: https://syzkaller.appspot.com/bug?extid=97deee97cf14574b96d0
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11f7c2fe600000

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+97deee...@syzkaller.appspotmail.com

Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in:
lock_release+0x866/0x960 kernel/locking/lockdep.c:4435
CPU: 0 PID: 9965 Comm: syz-executor.0 Not tainted 5.3.0-rc6+ #182
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
Kernel Offset: disabled
Rebooting in 86400 seconds..


---
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[Dmitry Vyukov]

On Sun, Sep 1, 2019 at 4:27 PM syzbot
<syzbot+97deee...@syzkaller.appspotmail.com> wrote:
>
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit: dd7078f0 enetc: Add missing call to 'pci_free_irq_vectors(..
> git tree: net
> console output: https://syzkaller.appspot.com/x/log.txt?x=115fe0fa600000
> kernel config: https://syzkaller.appspot.com/x/.config?x=2a6a2b9826fdadf9
> dashboard link: https://syzkaller.appspot.com/bug?extid=97deee97cf14574b96d0
> compiler: gcc (GCC) 9.0.0 20181231 (experimental)
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11f7c2fe600000

Stack corruption + bpf maps in repro triggers some bells. +bpf mailing list.

> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+97deee...@syzkaller.appspotmail.com
>
> Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in:
> lock_release+0x866/0x960 kernel/locking/lockdep.c:4435
> CPU: 0 PID: 9965 Comm: syz-executor.0 Not tainted 5.3.0-rc6+ #182
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
> Google 01/01/2011
> Call Trace:
> Kernel Offset: disabled
> Rebooting in 86400 seconds..
>
>
> ---
> This bug is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
> syzbot engineers can be reached at syzk...@googlegroups.com.
>
> syzbot will keep track of this bug report. See:
> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
> syzbot can test patches for this bug, for details see:
> https://goo.gl/tpsmEJ#testing-patches
>

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[syzbot]

Auto-closing this bug as obsolete.
No recent activity, existing reproducers are no longer triggering the issue.