Bluetooth: hci1: Opcode 0x0406 failed: -4 Bluetooth: hci1: Opcode 0x0406 failed: -4 Bluetooth: hci3: Opcode 0x0c1a failed: -4 Bluetooth: hci3: Opcode 0x0406 failed: -4 Oops: general protection fault, probably for non-canonical address 0xdffffc000000000b: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000058-0x000000000000005f] CPU: 0 UID: 0 PID: 26996 Comm: syz.3.5448 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:klist_put+0x4d/0x1d0 lib/klist.c:212 Code: c1 ea 03 80 3c 02 00 0f 85 74 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 23 49 83 e4 fe 49 8d 7c 24 58 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 43 01 00 00 4c 89 e7 4d 8b 74 24 58 e8 ac 0e 0d RSP: 0018:ffffc90004217290 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8880563ad060 RCX: ffffc90005d59000 RDX: 000000000000000b RSI: ffffffff8b8b6345 RDI: 0000000000000058 RBP: 0000000000000001 R08: 0000000000000000 R09: fffffbfff21798c0 R10: ffffffff90bcc603 R11: ffffffff82795f90 R12: 0000000000000000 R13: 0000000000000001 R14: ffffffff90bcc5c0 R15: dffffc0000000000 FS: 00007f45078076c0(0000) GS:ffff888124325000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb342ef0e9c CR3: 000000004dafc000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000006 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: klist_del lib/klist.c:230 [inline] klist_remove+0x14c/0x2e0 lib/klist.c:249 device_move+0x12d/0x1140 drivers/base/core.c:4698 hci_conn_del_sysfs+0x86/0x1a0 net/bluetooth/hci_sysfs.c:75 hci_conn_cleanup net/bluetooth/hci_conn.c:170 [inline] hci_conn_del+0x506/0x1180 net/bluetooth/hci_conn.c:1306 hci_abort_conn_sync+0x7d9/0xb20 net/bluetooth/hci_sync.c:5805 hci_disconnect_all_sync.constprop.0.isra.0+0x155/0x430 net/bluetooth/hci_sync.c:5828 hci_suspend_sync+0x8b7/0xa70 net/bluetooth/hci_sync.c:6304 hci_suspend_dev+0x31d/0x540 net/bluetooth/hci_core.c:2812 hci_suspend_notifier+0x21e/0x330 net/bluetooth/hci_core.c:2381 notifier_call_chain+0x99/0x3f0 kernel/notifier.c:85 notifier_call_chain_robust kernel/notifier.c:120 [inline] blocking_notifier_call_chain_robust kernel/notifier.c:345 [inline] blocking_notifier_call_chain_robust+0xc8/0x160 kernel/notifier.c:333 pm_notifier_call_chain_robust+0x27/0x60 kernel/power/main.c:172 snapshot_open+0x189/0x2a0 kernel/power/user.c:77 misc_open+0x26d/0x450 drivers/char/misc.c:163 chrdev_open+0x234/0x6a0 fs/char_dev.c:411 do_dentry_open+0x6ab/0x14d0 fs/open.c:947 vfs_open+0x82/0x3f0 fs/open.c:1079 do_open fs/namei.c:4700 [inline] path_openat+0x2873/0x4280 fs/namei.c:4859 do_file_open+0x20e/0x430 fs/namei.c:4888 do_sys_openat2+0x10f/0x1e0 fs/open.c:1395 do_sys_open fs/open.c:1401 [inline] __do_sys_openat fs/open.c:1417 [inline] __se_sys_openat fs/open.c:1412 [inline] __x64_sys_openat+0x12d/0x210 fs/open.c:1412 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f450699ce59 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:00007f4507807028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f4506c15fa0 RCX: 00007f450699ce59 RDX: 0000000000006080 RSI: 0000200000000040 RDI: ffffffffffffff9c RBP: 00007f4506a32e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4506c16038 R14: 00007f4506c15fa0 R15: 00007fff6e466e28 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:klist_put+0x4d/0x1d0 lib/klist.c:212 Code: c1 ea 03 80 3c 02 00 0f 85 74 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 23 49 83 e4 fe 49 8d 7c 24 58 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 43 01 00 00 4c 89 e7 4d 8b 74 24 58 e8 ac 0e 0d RSP: 0018:ffffc90004217290 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8880563ad060 RCX: ffffc90005d59000 RDX: 000000000000000b RSI: ffffffff8b8b6345 RDI: 0000000000000058 RBP: 0000000000000001 R08: 0000000000000000 R09: fffffbfff21798c0 R10: ffffffff90bcc603 R11: ffffffff82795f90 R12: 0000000000000000 R13: 0000000000000001 R14: ffffffff90bcc5c0 R15: dffffc0000000000 FS: 00007f45078076c0(0000) GS:ffff888124325000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd8992f5e8 CR3: 000000004dafc000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000006 DR6: 00000000ffff0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: c1 ea 03 shr $0x3,%edx 3: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 7: 0f 85 74 01 00 00 jne 0x181 d: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 14: fc ff df 17: 4c 8b 23 mov (%rbx),%r12 1a: 49 83 e4 fe and $0xfffffffffffffffe,%r12 1e: 49 8d 7c 24 58 lea 0x58(%r12),%rdi 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 43 01 00 00 jne 0x177 34: 4c 89 e7 mov %r12,%rdi 37: 4d 8b 74 24 58 mov 0x58(%r12),%r14 3c: e8 .byte 0xe8 3d: ac lods %ds:(%rsi),%al 3e: 0e (bad) 3f: 0d .byte 0xd