syzbot has bisected this bug to: commit b1f3e43dbfacfcd95296b0f80f84b186add9ef54 Author: Dmitry Yakunin <zeil@xxxxxxxxxxxxxx> Date: Thu Apr 30 15:51:15 2020 +0000 inet_diag: add support for cgroup filter bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=106b15f8100000 start commit: 37ecb5b8 hinic: Use kmemdup instead of kzalloc and memcpy git tree: net-next final crash: https://syzkaller.appspot.com/x/report.txt?x=126b15f8100000 console output: https://syzkaller.appspot.com/x/log.txt?x=146b15f8100000 kernel config: https://syzkaller.appspot.com/x/.config?x=b1494ce3fbc02154 dashboard link: https://syzkaller.appspot.com/bug?extid=13bef047dbfffa5cd1af syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12296e60100000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=150c6f02100000 Reported-by: syzbot+13bef047dbfffa5cd1af@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: b1f3e43dbfac ("inet_diag: add support for cgroup filter") For information about bisection process see: https://goo.gl/tpsmEJ#bisection