Oops: general protection fault, probably for non-canonical address 0xdffffc000000000b: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000058-0x000000000000005f] CPU: 0 UID: 0 PID: 6925 Comm: syz-executor Not tainted 6.16.0-rc3-syzkaller-00867-g8efa26fcbf8a #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 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 c7 c5 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 c7 c5 f6 49 8b 44 24 58 48 89 44 24 08 RSP: 0018:ffffc90003937840 EFLAGS: 00010202 RAX: 000000000000000b RBX: ffff888032ec3c00 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000058 RBP: ffffc90003937928 R08: ffffffff8f87bf43 R09: 1ffffffff1f0f7e8 R10: dffffc0000000000 R11: fffffbfff1f0f7e9 R12: 0000000000000000 R13: 1ffff1100ab9620c R14: ffff888055cb1060 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888125c48000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f850339fd58 CR3: 000000000df38000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: device_move+0x193/0x700 drivers/base/core.c:4618 hci_conn_del_sysfs+0xb8/0x170 net/bluetooth/hci_sysfs.c:75 hci_conn_cleanup net/bluetooth/hci_conn.c:175 [inline] hci_conn_del+0x8ff/0xcb0 net/bluetooth/hci_conn.c:1173 hci_conn_hash_flush+0x191/0x230 net/bluetooth/hci_conn.c:2561 hci_dev_close_sync+0xaef/0x1330 net/bluetooth/hci_sync.c:5250 hci_dev_do_close net/bluetooth/hci_core.c:501 [inline] hci_unregister_dev+0x21a/0x510 net/bluetooth/hci_core.c:2717 vhci_release+0x80/0xd0 drivers/bluetooth/hci_vhci.c:665 __fput+0x44c/0xa70 fs/file_table.c:465 task_work_run+0x1d1/0x260 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x6b5/0x22e0 kernel/exit.c:964 do_group_exit+0x21c/0x2d0 kernel/exit.c:1105 __do_sys_exit_group kernel/exit.c:1116 [inline] __se_sys_exit_group kernel/exit.c:1114 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1114 x64_sys_call+0x21ba/0x21c0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f754878e929 Code: Unable to access opcode bytes at 0x7f754878e8ff. RSP: 002b:00007fffb4962438 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f754878e929 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000043 RBP: 00007f75487ee8f0 R08: 00007fffb49601d7 R09: 0000000000000003 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000003 R14: 00000000ffffffff R15: 00007fffb49625f0 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 c7 c5 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 c7 c5 f6 49 8b 44 24 58 48 89 44 24 08 RSP: 0018:ffffc90003937840 EFLAGS: 00010202 RAX: 000000000000000b RBX: ffff888032ec3c00 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000058 RBP: ffffc90003937928 R08: ffffffff8f87bf43 R09: 1ffffffff1f0f7e8 R10: dffffc0000000000 R11: fffffbfff1f0f7e9 R12: 0000000000000000 R13: 1ffff1100ab9620c R14: ffff888055cb1060 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888125d48000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000032438000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- 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 c7 c5 f6 call 0xf6c5c750 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 c7 c5 f6 call 0xf6c5c750 36: 49 8b 44 24 58 mov 0x58(%r12),%rax 3b: 48 89 44 24 08 mov %rax,0x8(%rsp)