Oops: general protection fault, probably for non-canonical address 0xdffffc000000000b: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000058-0x000000000000005f]
CPU: 0 UID: 0 PID: 10573 Comm: kbnepd bnep0 Not tainted 6.12.0-rc7-syzkaller-01770-gdd7207838d38 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:klist_put lib/klist.c:212 [inline]
RIP: 0010:klist_del+0x49/0x110 lib/klist.c:230
Code: f5 4d 89 f5 49 c1 ed 03 43 80 7c 25 00 00 74 08 4c 89 f7 e8 19 a9 40 f6 49 8b 1e 48 83 e3 fe 48 8d 7b 58 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 05 e8 fb a8 40 f6 4c 8b 7b 58 48 89 df e8 cf a7
RSP: 0018:ffffc90004347828 EFLAGS: 00010202
RAX: 000000000000000b RBX: 0000000000000000 RCX: ffff8880256dbc00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000058
RBP: ffffc90004347950 R08: ffffffff823c6b9a R09: 1ffff1100a81374a
R10: dffffc0000000000 R11: ffffed100a81374b R12: dffffc0000000000
R13: 1ffff1100b97040c R14: ffff88805cb82060 R15: ffff888034294b88
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff3c0eedc8 CR3: 000000000e734000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 device_del+0x2c9/0x9b0 drivers/base/core.c:3838
 unregister_netdevice_many_notify+0x1859/0x1da0 net/core/dev.c:11556
 unregister_netdevice_many net/core/dev.c:11584 [inline]
 unregister_netdevice_queue+0x303/0x370 net/core/dev.c:11456
 unregister_netdevice include/linux/netdevice.h:3192 [inline]
 unregister_netdev+0x1c/0x30 net/core/dev.c:11602
 bnep_session+0x2e3c/0x3030 net/bluetooth/bnep/core.c:525
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:klist_put lib/klist.c:212 [inline]
RIP: 0010:klist_del+0x49/0x110 lib/klist.c:230
Code: f5 4d 89 f5 49 c1 ed 03 43 80 7c 25 00 00 74 08 4c 89 f7 e8 19 a9 40 f6 49 8b 1e 48 83 e3 fe 48 8d 7b 58 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 05 e8 fb a8 40 f6 4c 8b 7b 58 48 89 df e8 cf a7
RSP: 0018:ffffc90004347828 EFLAGS: 00010202
RAX: 000000000000000b RBX: 0000000000000000 RCX: ffff8880256dbc00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000058
RBP: ffffc90004347950 R08: ffffffff823c6b9a R09: 1ffff1100a81374a
R10: dffffc0000000000 R11: ffffed100a81374b R12: dffffc0000000000
R13: 1ffff1100b97040c R14: ffff88805cb82060 R15: ffff888034294b88
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f151df062d8 CR3: 000000000e734000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	f5                   	cmc
   1:	4d 89 f5             	mov    %r14,%r13
   4:	49 c1 ed 03          	shr    $0x3,%r13
   8:	43 80 7c 25 00 00    	cmpb   $0x0,0x0(%r13,%r12,1)
   e:	74 08                	je     0x18
  10:	4c 89 f7             	mov    %r14,%rdi
  13:	e8 19 a9 40 f6       	call   0xf640a931
  18:	49 8b 1e             	mov    (%r14),%rbx
  1b:	48 83 e3 fe          	and    $0xfffffffffffffffe,%rbx
  1f:	48 8d 7b 58          	lea    0x58(%rbx),%rdi
  23:	48 89 f8             	mov    %rdi,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1) <-- trapping instruction
  2f:	74 05                	je     0x36
  31:	e8 fb a8 40 f6       	call   0xf640a931
  36:	4c 8b 7b 58          	mov    0x58(%rbx),%r15
  3a:	48 89 df             	mov    %rbx,%rdi
  3d:	e8                   	.byte 0xe8
  3e:	cf                   	iret
  3f:	a7                   	cmpsl  %es:(%rdi),%ds:(%rsi)