Re: [syzbot] [io-uring?] general protection fault in io_sqe_buffer_register

[syzbot]

syzbot has bisected this issue to:

commit 661768085e99aad356ebc77d78ac41fd02eccbe3
Author: Jens Axboe <axboe@xxxxxxxxx>
Date:   Wed Oct 30 15:51:58 2024 +0000

    io_uring/rsrc: get rid of the empty node and dummy_ubuf

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1586e987980000
start commit:   f9f24ca362a4 Add linux-next specific files for 20241031
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1786e987980000
console output: https://syzkaller.appspot.com/x/log.txt?x=1386e987980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=328572ed4d152be9
dashboard link: https://syzkaller.appspot.com/bug?extid=05c0f12a4d43d656817e
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=15abc6f7980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10eb655f980000

Reported-by: syzbot+05c0f12a4d43d656817e@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 661768085e99 ("io_uring/rsrc: get rid of the empty node and dummy_ubuf")

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