Re: [syzbot] [mm?] possible deadlock in __mmap_lock_do_trace_start_locking

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syzbot suspects this issue was fixed by commit:

commit 7d6be67cfdd4a53cea7147313ca13c531e3a470f
Author: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
Date:   Fri Jun 21 01:08:41 2024 +0000

    mm: mmap_lock: replace get_memcg_path_buf() with on-stack buffer

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1412f697980000
start commit:   36534d3c5453 tcp: use signed arithmetic in tcp_rtx_probe0_..
git tree:       bpf
kernel config:  https://syzkaller.appspot.com/x/.config?x=333ebe38d43c42e2
dashboard link: https://syzkaller.appspot.com/bug?extid=6ff90931779bcdfc840c
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1585acfa980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17bdb7ee980000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: mm: mmap_lock: replace get_memcg_path_buf() with on-stack buffer

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




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