general protection fault, probably for non-canonical address 0xdffffc000000000b: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000058-0x000000000000005f]
CPU: 1 PID: 6373 Comm: kbnepd bnep0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:klist_put lib/klist.c:212 [inline]
RIP: 0010:klist_del+0x49/0x110 lib/klist.c:230
Code: 0f f7 49 89 dc 49 c1 ec 03 43 80 3c 3c 00 74 08 48 89 df e8 d9 f2 67 f7 4c 8b 33 49 83 e6 fe 49 8d 7e 58 48 89 f8 48 c1 e8 03 <42> 80 3c 38 00 74 05 e8 bb f2 67 f7 49 8b 46 58 48 89 04 24 4c 89
RSP: 0018:ffffc9000c1778e0 EFLAGS: 00010202
RAX: 000000000000000b RBX: ffff888022c3d460 RCX: ffff88801becda00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000058
RBP: ffffc9000c177a10 R08: ffff8880260e17c3 R09: 1ffff11004c1c2f8
R10: dffffc0000000000 R11: ffffed1004c1c2f9 R12: 1ffff11004587a8c
R13: 0000000000000001 R14: 0000000000000000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000238030 CR3: 00000000605df000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 device_del+0x280/0x910 drivers/base/core.c:3866
 unregister_netdevice_many_notify+0x1449/0x1910 net/core/dev.c:11154
 unregister_netdevice_many net/core/dev.c:11180 [inline]
 unregister_netdevice_queue net/core/dev.c:11060 [inline]
 unregister_netdevice include/linux/netdevice.h:3137 [inline]
 unregister_netdev+0x150/0x1c0 net/core/dev.c:11198
 bnep_session+0x29a4/0x2b90 net/bluetooth/bnep/core.c:547
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </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: 0f f7 49 89 dc 49 c1 ec 03 43 80 3c 3c 00 74 08 48 89 df e8 d9 f2 67 f7 4c 8b 33 49 83 e6 fe 49 8d 7e 58 48 89 f8 48 c1 e8 03 <42> 80 3c 38 00 74 05 e8 bb f2 67 f7 49 8b 46 58 48 89 04 24 4c 89
RSP: 0018:ffffc9000c1778e0 EFLAGS: 00010202
RAX: 000000000000000b RBX: ffff888022c3d460 RCX: ffff88801becda00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000058
RBP: ffffc9000c177a10 R08: ffff8880260e17c3 R09: 1ffff11004c1c2f8
R10: dffffc0000000000 R11: ffffed1004c1c2f9 R12: 1ffff11004587a8c
R13: 0000000000000001 R14: 0000000000000000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000238030 CR3: 00000000605df000 CR4: 00000000003506e0
----------------
Code disassembly (best guess):
   0:	0f                   	maskmovq (bad),%mm1
   1:	f7 49 89 dc 49 c1 ec 	testl  $0xecc149dc,-0x77(%rcx)
   8:	03 43 80             	add    -0x80(%rbx),%eax
   b:	3c 3c                	cmp    $0x3c,%al
   d:	00 74 08 48          	add    %dh,0x48(%rax,%rcx,1)
  11:	89 df                	mov    %ebx,%edi
  13:	e8 d9 f2 67 f7       	call   0xf767f2f1
  18:	4c 8b 33             	mov    (%rbx),%r14
  1b:	49 83 e6 fe          	and    $0xfffffffffffffffe,%r14
  1f:	49 8d 7e 58          	lea    0x58(%r14),%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 bb f2 67 f7       	call   0xf767f2f1
  36:	49 8b 46 58          	mov    0x58(%r14),%rax
  3a:	48 89 04 24          	mov    %rax,(%rsp)
  3e:	4c                   	rex.WR
  3f:	89                   	.byte 0x89