Re: [syzbot] [kernel?] possible deadlock in alarm_handle_timer

[Thomas Gleixner]

On Fri, Nov 17 2023 at 06:13, syzbot wrote:
> HEAD commit:    eff99d8edbed Add linux-next specific files for 20231117
> git tree:       linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=134b7d84e80000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=61991b2630c19677
> dashboard link: https://syzkaller.appspot.com/bug?extid=f2c4e7bfcca6c6d6324c
> compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
>
> Unfortunately, I don't have any reproducer for this issue yet.

Offending commit

  5431fdd2c181 ("ptrace: Convert ptrace_attach() to use lock guards")

got removed from linux-next 2023-11-20.

#syz invalid