Oops: general protection fault, probably for non-canonical address 0xdffffc000000000b: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000058-0x000000000000005f] CPU: 1 UID: 0 PID: 9900 Comm: syz.7.1326 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:klist_put lib/klist.c:212 [inline] RIP: 0010:klist_del lib/klist.c:230 [inline] RIP: 0010:klist_remove+0x14a/0x340 lib/klist.c:249 Code: 4d 89 f5 49 c1 ed 03 43 80 7c 3d 00 00 74 08 4c 89 f7 e8 39 54 cc f6 4d 8b 26 49 83 e4 fe 49 8d 7c 24 58 48 89 f8 48 c1 e8 03 <42> 80 3c 38 00 74 05 e8 1a 54 cc f6 49 8b 44 24 58 48 89 44 24 08 RSP: 0018:ffffc9000db47a00 EFLAGS: 00010202 RAX: 000000000000000b RBX: ffff888031d15b80 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000058 RBP: ffffc9000db47ae8 R08: ffffffff8fa5ccc3 R09: 1ffffffff1f4b998 R10: dffffc0000000000 R11: fffffbfff1f4b999 R12: 0000000000000000 R13: 1ffff1100b347c0c R14: ffff888059a3e060 R15: dffffc0000000000 FS: 00007f3694f6b6c0(0000) GS:ffff888125b7c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005557c51da000 CR3: 0000000029cda000 CR4: 00000000003526f0 Call Trace: device_move+0x193/0x730 drivers/base/core.c:4615 hci_conn_del_sysfs+0xb8/0x1a0 net/bluetooth/hci_sysfs.c:75 hci_conn_cleanup net/bluetooth/hci_conn.c:173 [inline] hci_conn_del+0xc33/0x1240 net/bluetooth/hci_conn.c:1229 hci_conn_hash_flush+0x191/0x260 net/bluetooth/hci_conn.c:2633 hci_dev_do_reset net/bluetooth/hci_core.c:566 [inline] hci_dev_reset+0x41c/0x6e0 net/bluetooth/hci_core.c:610 sock_do_ioctl+0xdc/0x300 net/socket.c:1258 sock_ioctl+0x576/0x790 net/socket.c:1379 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+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f369418f6c9 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:00007f3694f6b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f36943e6090 RCX: 00007f369418f6c9 RDX: 0000000000000000 RSI: 00000000400448cb RDI: 0000000000000007 RBP: 00007f3694211f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f36943e6128 R14: 00007f36943e6090 R15: 00007ffc18e12518 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:klist_put lib/klist.c:212 [inline] RIP: 0010:klist_del lib/klist.c:230 [inline] RIP: 0010:klist_remove+0x14a/0x340 lib/klist.c:249 Code: 4d 89 f5 49 c1 ed 03 43 80 7c 3d 00 00 74 08 4c 89 f7 e8 39 54 cc f6 4d 8b 26 49 83 e4 fe 49 8d 7c 24 58 48 89 f8 48 c1 e8 03 <42> 80 3c 38 00 74 05 e8 1a 54 cc f6 49 8b 44 24 58 48 89 44 24 08 RSP: 0018:ffffc9000db47a00 EFLAGS: 00010202 RAX: 000000000000000b RBX: ffff888031d15b80 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000058 RBP: ffffc9000db47ae8 R08: ffffffff8fa5ccc3 R09: 1ffffffff1f4b998 R10: dffffc0000000000 R11: fffffbfff1f4b999 R12: 0000000000000000 R13: 1ffff1100b347c0c R14: ffff888059a3e060 R15: dffffc0000000000 FS: 00007f3694f6b6c0(0000) GS:ffff888125b7c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055cd89f93000 CR3: 0000000029cda000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: 4d 89 f5 mov %r14,%r13 3: 49 c1 ed 03 shr $0x3,%r13 7: 43 80 7c 3d 00 00 cmpb $0x0,0x0(%r13,%r15,1) d: 74 08 je 0x17 f: 4c 89 f7 mov %r14,%rdi 12: e8 39 54 cc f6 call 0xf6cc5450 17: 4d 8b 26 mov (%r14),%r12 1a: 49 83 e4 fe and $0xfffffffffffffffe,%r12 1e: 49 8d 7c 24 58 lea 0x58(%r12),%rdi 23: 48 89 f8 mov %rdi,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) <-- trapping instruction 2f: 74 05 je 0x36 31: e8 1a 54 cc f6 call 0xf6cc5450 36: 49 8b 44 24 58 mov 0x58(%r12),%rax 3b: 48 89 44 24 08 mov %rax,0x8(%rsp)