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: 14644 Comm: kbnepd bnep0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:klist_put lib/klist.c:212 [inline]
RIP: 0010:klist_del+0x45/0x110 lib/klist.c:230
Code: 66 f7 49 89 dc 49 c1 ec 03 43 80 3c 3c 00 74 08 48 89 df e8 0d 85 b7 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 ef 84 b7 f7 49 8b 46 58 48 89 04 24 4c 89
RSP: 0018:ffffc900042a7920 EFLAGS: 00010202
RAX: 000000000000000b RBX: ffff888074ffd060 RCX: ffff888026691e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000058
RBP: ffffc900042a7a50 R08: ffff888065618cb3 R09: 1ffff1100cac3196
R10: dffffc0000000000 R11: ffffed100cac3197 R12: 1ffff1100e9ffa0c
R13: ffff888046d64688 R14: 0000000000000000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f79ff7556c8 CR3: 0000000062b28000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000c DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 device_del+0x2e2/0xa80 drivers/base/core.c:3879
 unregister_netdevice_many_notify+0x14b6/0x1990 net/core/dev.c:11051
 unregister_netdevice_many net/core/dev.c:11077 [inline]
 unregister_netdevice_queue net/core/dev.c:10960 [inline]
 unregister_netdevice include/linux/netdevice.h:3075 [inline]
 unregister_netdev+0x14c/0x1c0 net/core/dev.c:11095
 bnep_session+0x29c8/0x2bb0 net/bluetooth/bnep/core.c:547
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:klist_put lib/klist.c:212 [inline]
RIP: 0010:klist_del+0x45/0x110 lib/klist.c:230
Code: 66 f7 49 89 dc 49 c1 ec 03 43 80 3c 3c 00 74 08 48 89 df e8 0d 85 b7 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 ef 84 b7 f7 49 8b 46 58 48 89 04 24 4c 89
RSP: 0018:ffffc900042a7920 EFLAGS: 00010202
RAX: 000000000000000b RBX: ffff888074ffd060 RCX: ffff888026691e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000058
RBP: ffffc900042a7a50 R08: ffff888065618cb3 R09: 1ffff1100cac3196
R10: dffffc0000000000 R11: ffffed100cac3197 R12: 1ffff1100e9ffa0c
R13: ffff888046d64688 R14: 0000000000000000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f79ff7556c8 CR3: 000000006363e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000c DR6: 00000000ffff0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	66 f7 49 89 dc 49    	testw  $0x49dc,-0x77(%rcx)
   6:	c1 ec 03             	shr    $0x3,%esp
   9:	43 80 3c 3c 00       	cmpb   $0x0,(%r12,%r15,1)
   e:	74 08                	je     0x18
  10:	48 89 df             	mov    %rbx,%rdi
  13:	e8 0d 85 b7 f7       	call   0xf7b78525
  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 ef 84 b7 f7       	call   0xf7b78525
  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