tipc: Resetting bearer ------------[ cut here ]------------ hook not found, pf 5 num 0 WARNING: net/netfilter/core.c:514 at 0x0, CPU#1: syz.3.10472/14370 Modules linked in: CPU: 1 UID: 0 PID: 14370 Comm: syz.3.10472 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:__nf_unregister_net_hook+0x2dc/0x6f0 net/netfilter/core.c:514 Code: 24 30 48 8b 5c 24 08 44 8b 6c 24 04 48 8d 3d bb bd 1d 06 48 8b 44 24 10 0f b6 04 28 84 c0 0f 85 f1 02 00 00 41 8b 17 44 89 ee <67> 48 0f b9 3a e9 db 01 00 00 e8 c5 21 d8 01 89 c3 31 ff 89 c6 e8 RSP: 0018:ffffc9000dbcf858 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88805861a800 RCX: ffff88808ecf1e80 RDX: 0000000000000000 RSI: 0000000000000005 RDI: ffffffff8f8ee3d0 RBP: dffffc0000000000 R08: ffffffff8f805a77 R09: 1ffffffff1f00b4e R10: dffffc0000000000 R11: fffffbfff1f00b4f R12: ffff888053e44b80 R13: 0000000000000005 R14: ffff8880548dc488 R15: ffff88805ac8433c FS: 0000555562344500(0000) GS:ffff8881261b1000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7ed79d5d58 CR3: 00000000602a4000 CR4: 00000000003526f0 Call Trace: nft_unregister_flowtable_ops net/netfilter/nf_tables_api.c:8977 [inline] nft_flowtable_event net/netfilter/nf_tables_api.c:9756 [inline] __nf_tables_flowtable_event+0x5bf/0x8c0 net/netfilter/nf_tables_api.c:9801 nf_tables_flowtable_event+0x103/0x160 net/netfilter/nf_tables_api.c:9832 notifier_call_chain+0x19d/0x3a0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2268 [inline] call_netdevice_notifiers net/core/dev.c:2282 [inline] unregister_netdevice_many_notify+0x1830/0x2310 net/core/dev.c:12381 unregister_netdevice_many net/core/dev.c:12444 [inline] unregister_netdevice_queue+0x317/0x350 net/core/dev.c:12258 unregister_netdevice include/linux/netdevice.h:3405 [inline] __tun_detach+0x6d9/0x15d0 drivers/net/tun.c:621 tun_detach drivers/net/tun.c:637 [inline] tun_chr_close+0x10a/0x1c0 drivers/net/tun.c:3436 __fput+0x44c/0xa70 fs/file_table.c:468 task_work_run+0x1d4/0x260 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:44 [inline] exit_to_user_mode_loop+0xff/0x4f0 kernel/entry/common.c:75 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline] do_syscall_64+0x2e3/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4ae358f749 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe9b034f98 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007f4ae37e7da0 RCX: 00007f4ae358f749 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007f4ae37e7da0 R08: 00000000000001fc R09: 0000001e9b03528f R10: 00000000003ffbe0 R11: 0000000000000246 R12: 0000000000145f78 R13: 00007f4ae37e6090 R14: ffffffffffffffff R15: 00007ffe9b0350b0 ---------------- Code disassembly (best guess): 0: 24 30 and $0x30,%al 2: 48 8b 5c 24 08 mov 0x8(%rsp),%rbx 7: 44 8b 6c 24 04 mov 0x4(%rsp),%r13d c: 48 8d 3d bb bd 1d 06 lea 0x61dbdbb(%rip),%rdi # 0x61dbdce 13: 48 8b 44 24 10 mov 0x10(%rsp),%rax 18: 0f b6 04 28 movzbl (%rax,%rbp,1),%eax 1c: 84 c0 test %al,%al 1e: 0f 85 f1 02 00 00 jne 0x315 24: 41 8b 17 mov (%r15),%edx 27: 44 89 ee mov %r13d,%esi * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: e9 db 01 00 00 jmp 0x20f 34: e8 c5 21 d8 01 call 0x1d821fe 39: 89 c3 mov %eax,%ebx 3b: 31 ff xor %edi,%edi 3d: 89 c6 mov %eax,%esi 3f: e8 .byte 0xe8