Re: BUG: unable to handle kernel NULL pointer dereference in call_rcu

From: syzbot
Date: Wed Feb 24 2021 - 08:37:20 EST

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syzbot has bisected this issue to:

commit 97593cad003c668e2532cb2939a24a031f8de52d
Author: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Date: Tue Dec 22 20:03:28 2020 +0000

kasan: sanitize objects when metadata doesn't fit

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=106689b6d00000
start commit: 614cb589 Merge tag 'acpi-5.11-rc1-2' of git://git.kernel.o..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=126689b6d00000
console output: https://syzkaller.appspot.com/x/log.txt?x=146689b6d00000
kernel config: https://syzkaller.appspot.com/x/.config?x=bf519e1e96191576
dashboard link: https://syzkaller.appspot.com/bug?extid=9d3ede723bdc58553f13
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11830e93500000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13d92057500000

Reported-by: syzbot+9d3ede723bdc58553f13@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 97593cad003c ("kasan: sanitize objects when metadata doesn't fit")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection

Next message: Sasha Levin: "[PATCH AUTOSEL 5.10 38/56] nvme-tcp: add clean action for failed reconnection"
Previous message: Sasha Levin: "[PATCH AUTOSEL 5.10 24/56] sched/core: Allow try_invoke_on_locked_down_task() with irqs disabled"
Next in thread: Andrey Konovalov: "Re: BUG: unable to handle kernel NULL pointer dereference in call_rcu"
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