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

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Message-ID: <0000000000002b02cf05aed302f3@google.com>
Date:   Tue, 08 Sep 2020 13:16:21 -0700
From:   syzbot <syzbot+bc9dbf05dcc151e9b972@...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_call_function_single

Hello,

syzbot found the following issue on:

HEAD commit:    f4d51dff Linux 5.9-rc4
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1455d4f9900000
kernel config:  https://syzkaller.appspot.com/x/.config?x=a9075b36a6ae26c9
dashboard link: https://syzkaller.appspot.com/bug?extid=bc9dbf05dcc151e9b972
compiler:       gcc (GCC) 10.1.0-syz 20200507

Unfortunately, I don't have any reproducer for this issue yet.

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+bc9dbf05dcc151e9b972@...kaller.appspotmail.com

WARNING: can't access registers at asm_sysvec_call_function_single+0x12/0x20 arch/x86/include/asm/idtentry.h:589


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