[syzbot] [tomoyo?] [bpf?] INFO: rcu detected stall in security_file_open (6)

[Tetsuo Handa]

Ping?

How do you plan to avoid printk() flooding?

#syz dup: INFO: rcu detected stall in newfstatat (3)

On 2023/06/27 18:51, syzbot wrote:
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    8a28a0b6f1a1 Merge tag 'net-6.4-rc8' of git://git.kernel.o..
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=1335a9db280000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=2cbd298d0aff1140
> dashboard link: https://syzkaller.appspot.com/bug?extid=bb11ad7bb33b56ca4d4b
> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16841cc0a80000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=16fc6e1f280000
> 
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/d02009a9822d/disk-8a28a0b6.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/f33ad4ef1182/vmlinux-8a28a0b6.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/f795a8ae7a8c/bzImage-8a28a0b6.xz
> 
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+bb11ad7bb33b56ca4d4b at syzkaller.appspotmail.com