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SubjectRe: general protection fault in vmx_vcpu_run (2)
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syzbot has bisected this issue to:

commit 167dcfc08b0b1f964ea95d410aa496fd78adf475
Author: Lorenzo Stoakes <lstoakes@gmail.com>
Date: Tue Dec 15 20:56:41 2020 +0000

x86/mm: Increase pgt_buf size for 5-level page tables

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13fe3ea8d00000
start commit: a99163e9 Merge tag 'devicetree-for-5.12' of git://git.kern..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=10013ea8d00000
console output: https://syzkaller.appspot.com/x/log.txt?x=17fe3ea8d00000
kernel config: https://syzkaller.appspot.com/x/.config?x=49116074dd53b631
dashboard link: https://syzkaller.appspot.com/bug?extid=42a71c84ef04577f1aef
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=141f3f04d00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17de4f12d00000

Reported-by: syzbot+42a71c84ef04577f1aef@syzkaller.appspotmail.com
Fixes: 167dcfc08b0b ("x86/mm: Increase pgt_buf size for 5-level page tables")

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

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