batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready batman_adv: batadv0: Interface activated: batadv_slave_0 ------------[ cut here ]------------ kernel BUG at fs/f2fs/node.c:2780! invalid opcode: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 8020 Comm: syz-executor.0 Not tainted 4.14.300-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 task: ffff888099260000 task.stack: ffff8880a9e60000 RIP: 0010:destroy_node_manager+0x4f4/0x780 fs/f2fs/node.c:2780 RSP: 0018:ffff8880a9e678c0 EFLAGS: 00010297 RAX: ffff888099260000 RBX: ffff8880a31a8e70 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8880a31a8e94 RBP: ffff8880a31a8d80 R08: ffffffff8b9cf790 R09: 0000000000040639 R10: ffff8880992608b0 R11: ffff888099260000 R12: ffff8880a31a8e98 R13: ffffed10122ac106 R14: ffff8880a31a8e70 R15: ffff888091560800 FS: 0000555556bec400(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9c035dad28 CR3: 000000009a693000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: f2fs_put_super+0x3e1/0x840 fs/f2fs/super.c:835 generic_shutdown_super+0x144/0x370 fs/super.c:446 kill_block_super+0x95/0xe0 fs/super.c:1161 deactivate_locked_super+0x6c/0xd0 fs/super.c:319 deactivate_super+0x7f/0xa0 fs/super.c:350 cleanup_mnt+0x186/0x2c0 fs/namespace.c:1183 task_work_run+0x11f/0x190 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:191 [inline] exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:270 [inline] do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 Code: 40 6c 00 00 00 00 48 81 c4 d8 03 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 5a 42 89 fe 0f 0b e8 53 42 89 fe 0f 0b e8 4c 42 89 fe <0f> 0b e8 45 42 89 fe 0f 0b e8 3e 42 89 fe 48 8b 7c 24 28 e8 f4 RIP: destroy_node_manager+0x4f4/0x780 fs/f2fs/node.c:2780 RSP: ffff8880a9e678c0 ---[ end trace e6c98231ffefd526 ]---