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: 8181 Comm: kbnepd bnep0 Not tainted 6.16.0-rc6-syzkaller-00128-g81e0db8e8398-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:klist_del+0x49/0x110
Code: f6 49 89 dd 49 c1 ed 03 43 80 7c 25 00 00 74 08 48 89 df e8 f9 83 be f6 4c 8b 33 49 83 e6 fe 49 8d 7e 58 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 05 e8 db 83 be f6 4d 8b 7e 58 4c 89 f7 e8 0f 5c
RSP: 0018:ffffc900031bf708 EFLAGS: 00010202
RAX: 000000000000000b RBX: ffff888115667c60 RCX: ffff888114f20000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000058
RBP: ffffc900031bf830 R08: ffff88812366e2d3 R09: 1ffff110246cdc5a
R10: dffffc0000000000 R11: ffffed10246cdc5b R12: dffffc0000000000
R13: 1ffff11022accf8c R14: 0000000000000000 R15: ffff88803aa22768
FS:  0000000000000000(0000) GS:ffff8881a3c23000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f08f8056fc8 CR3: 0000000028076000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 device_del+0x280/0x8e0
 unregister_netdevice_many_notify+0x1d52/0x2320
 unregister_netdevice_queue+0x33c/0x380
 unregister_netdev+0x1f/0x60
 bnep_session+0x294d/0x2b40
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:klist_del+0x49/0x110
Code: f6 49 89 dd 49 c1 ed 03 43 80 7c 25 00 00 74 08 48 89 df e8 f9 83 be f6 4c 8b 33 49 83 e6 fe 49 8d 7e 58 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 05 e8 db 83 be f6 4d 8b 7e 58 4c 89 f7 e8 0f 5c
RSP: 0018:ffffc900031bf708 EFLAGS: 00010202
RAX: 000000000000000b RBX: ffff888115667c60 RCX: ffff888114f20000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000058
RBP: ffffc900031bf830 R08: ffff88812366e2d3 R09: 1ffff110246cdc5a
R10: dffffc0000000000 R11: ffffed10246cdc5b R12: dffffc0000000000
R13: 1ffff11022accf8c R14: 0000000000000000 R15: ffff88803aa22768
FS:  0000000000000000(0000) GS:ffff8881a3c23000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f08f8056fc8 CR3: 0000000028076000 CR4: 00000000000006f0
