linux-kernel - WARNING: can't access registers at asm_sysvec_apic_timer

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Date:   Thu, 03 Sep 2020 18:09:16 -0700
From:   syzbot <syzbot+9aecaf2584beaefa1614@...kaller.appspotmail.com>
To:     alexandre.chartre@...cle.com, bp@...en8.de, hpa@...or.com,
        linux-kernel@...r.kernel.org, luto@...nel.org, mingo@...hat.com,
        peterz@...radead.org, syzkaller-bugs@...glegroups.com,
        tglx@...utronix.de, x86@...nel.org
Subject: WARNING: can't access registers at asm_sysvec_apic_timer_interrupt

Hello,

syzbot found the following issue on:

HEAD commit:    dcc5c6f0 Merge tag 'x86-urgent-2020-08-30' of git://git.ke..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1752eac1900000
kernel config:  https://syzkaller.appspot.com/x/.config?x=978db74cb30aa994
dashboard link: https://syzkaller.appspot.com/bug?extid=9aecaf2584beaefa1614
compiler:       gcc (GCC) 10.1.0-syz 20200507
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1104e485900000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=15f7b769900000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+9aecaf2584beaefa1614@...kaller.appspotmail.com

WARNING: can't access registers at asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581

---
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