ipt_ECN: cannot use operation on non-tcp rule Oops: stack segment: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 23826 Comm: syz.3.4689 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:kernfs_rename_ns+0x3a/0x800 fs/kernfs/dir.c:1828 Code: ec 38 48 89 cb 48 89 54 24 10 49 89 f5 49 89 fe 49 bc 00 00 00 00 00 fc ff df e8 b1 00 52 ff 4d 8d 7e 30 4c 89 fd 48 c1 ed 03 <42> 80 7c 25 00 00 74 08 4c 89 ff e8 f6 97 bf ff 49 83 3f 00 0f 84 RSP: 0018:ffffc90004aff930 EFLAGS: 00010206 RAX: ffffffff8275134f RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc9000e07b000 RSI: 0000000000000fbc RDI: 0000000000000fbd RBP: 0000000000000006 R08: ffff88805538be00 R09: 0000000000000008 R10: 0000000000000007 R11: 0000000000000002 R12: dffffc0000000000 R13: ffff8880236e7c30 R14: 0000000000000000 R15: 0000000000000030 FS: 00007f76827256c0(0000) GS:ffff88812504d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6f395eb700 CR3: 000000007a9a0000 CR4: 00000000003526f0 Call Trace: kobject_move+0x560/0x720 lib/kobject.c:569 device_move+0xe0/0x720 drivers/base/core.c:4689 hci_conn_del_sysfs+0xb8/0x1a0 net/bluetooth/hci_sysfs.c:75 hci_conn_cleanup net/bluetooth/hci_conn.c:170 [inline] hci_conn_del+0xc3d/0x1200 net/bluetooth/hci_conn.c:1308 hci_conn_hash_flush+0x189/0x260 net/bluetooth/hci_conn.c:2736 hci_dev_close_sync+0x7fc/0x10a0 net/bluetooth/hci_sync.c:5513 hci_dev_do_close net/bluetooth/hci_core.c:499 [inline] hci_dev_close+0x108/0x260 net/bluetooth/hci_core.c:524 sock_do_ioctl+0x101/0x320 net/socket.c:1300 sock_ioctl+0x57a/0x7e0 net/socket.c:1421 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f768179e019 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7682725028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f7681a25fa0 RCX: 00007f768179e019 RDX: 0000200000000000 RSI: 00000000400448ca RDI: 0000000000000004 RBP: 00007f768183500c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f7681a26038 R14: 00007f7681a25fa0 R15: 00007ffcc69ff328 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:kernfs_rename_ns+0x3a/0x800 fs/kernfs/dir.c:1828 Code: ec 38 48 89 cb 48 89 54 24 10 49 89 f5 49 89 fe 49 bc 00 00 00 00 00 fc ff df e8 b1 00 52 ff 4d 8d 7e 30 4c 89 fd 48 c1 ed 03 <42> 80 7c 25 00 00 74 08 4c 89 ff e8 f6 97 bf ff 49 83 3f 00 0f 84 RSP: 0018:ffffc90004aff930 EFLAGS: 00010206 RAX: ffffffff8275134f RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc9000e07b000 RSI: 0000000000000fbc RDI: 0000000000000fbd RBP: 0000000000000006 R08: ffff88805538be00 R09: 0000000000000008 R10: 0000000000000007 R11: 0000000000000002 R12: dffffc0000000000 R13: ffff8880236e7c30 R14: 0000000000000000 R15: 0000000000000030 FS: 00007f76827256c0(0000) GS:ffff88812504d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c3ac864 CR3: 000000007a9a0000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: ec in (%dx),%al 1: 38 48 89 cmp %cl,-0x77(%rax) 4: cb lret 5: 48 89 54 24 10 mov %rdx,0x10(%rsp) a: 49 89 f5 mov %rsi,%r13 d: 49 89 fe mov %rdi,%r14 10: 49 bc 00 00 00 00 00 movabs $0xdffffc0000000000,%r12 17: fc ff df 1a: e8 b1 00 52 ff call 0xff5200d0 1f: 4d 8d 7e 30 lea 0x30(%r14),%r15 23: 4c 89 fd mov %r15,%rbp 26: 48 c1 ed 03 shr $0x3,%rbp * 2a: 42 80 7c 25 00 00 cmpb $0x0,0x0(%rbp,%r12,1) <-- trapping instruction 30: 74 08 je 0x3a 32: 4c 89 ff mov %r15,%rdi 35: e8 f6 97 bf ff call 0xffbf9830 3a: 49 83 3f 00 cmpq $0x0,(%r15) 3e: 0f .byte 0xf 3f: 84 .byte 0x84