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