Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 1 UID: 0 PID: 12675 Comm: syz.6.1285 Not tainted 6.14.0-rc1-next-20250204-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:skb_queue_empty_lockless include/linux/skbuff.h:1887 [inline]
RIP: 0010:skb_queue_purge_reason+0xaa/0x500 net/core/skbuff.c:3936
Code: 89 44 24 78 42 c6 44 30 13 f3 e8 81 76 05 f8 48 8d bc 24 b0 00 00 00 ba 48 00 00 00 31 f6 e8 0d f2 6b f8 4d 89 ef 49 c1 ef 03 <43> 80 3c 37 00 74 08 4c 89 ef e8 27 ef 6b f8 49 8b 45 00 4c 39 e8
RSP: 0018:ffffc900043cfa20 EFLAGS: 00010202
RAX: ffffc900043cfad0 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900043cfb18
RBP: ffffc900043cfb90 R08: ffffc900043cfb17 R09: 0000000000000000
R10: ffffc900043cfad0 R11: fffff52000879f63 R12: dffffc0000000000
R13: 0000000000000008 R14: dffffc0000000000 R15: 0000000000000001
FS:  000055556f100500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8dba779178 CR3: 000000002a1e2000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 skb_queue_purge include/linux/skbuff.h:3364 [inline]
 mrvl_close+0x8e/0x120 drivers/bluetooth/hci_mrvl.c:100
 hci_uart_tty_close+0x205/0x290 drivers/bluetooth/hci_ldisc.c:557
 tty_ldisc_kill+0xa3/0x1a0 drivers/tty/tty_ldisc.c:613
 tty_ldisc_release+0x1a1/0x200 drivers/tty/tty_ldisc.c:781
 tty_release_struct+0x2b/0xe0 drivers/tty/tty_io.c:1690
 tty_release+0xd06/0x12c0 drivers/tty/tty_io.c:1861
 __fput+0x3e9/0x9f0 fs/file_table.c:448
 task_work_run+0x24f/0x310 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fab7078cda9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd59b9d478 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007fab709a7ba0 RCX: 00007fab7078cda9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007fab709a7ba0 R08: 0000000000000244 R09: 00007ffd59b9d77f
R10: 00007fab709a7ac0 R11: 0000000000000246 R12: 0000000000103884
R13: 00007fab709a6240 R14: 0000000000000032 R15: ffffffffffffffff
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:skb_queue_empty_lockless include/linux/skbuff.h:1887 [inline]
RIP: 0010:skb_queue_purge_reason+0xaa/0x500 net/core/skbuff.c:3936
Code: 89 44 24 78 42 c6 44 30 13 f3 e8 81 76 05 f8 48 8d bc 24 b0 00 00 00 ba 48 00 00 00 31 f6 e8 0d f2 6b f8 4d 89 ef 49 c1 ef 03 <43> 80 3c 37 00 74 08 4c 89 ef e8 27 ef 6b f8 49 8b 45 00 4c 39 e8
RSP: 0018:ffffc900043cfa20 EFLAGS: 00010202
RAX: ffffc900043cfad0 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900043cfb18
RBP: ffffc900043cfb90 R08: ffffc900043cfb17 R09: 0000000000000000
R10: ffffc900043cfad0 R11: fffff52000879f63 R12: dffffc0000000000
R13: 0000000000000008 R14: dffffc0000000000 R15: 0000000000000001
FS:  000055556f100500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8dba779178 CR3: 000000002a1e2000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	89 44 24 78          	mov    %eax,0x78(%rsp)
   4:	42 c6 44 30 13 f3    	movb   $0xf3,0x13(%rax,%r14,1)
   a:	e8 81 76 05 f8       	call   0xf8057690
   f:	48 8d bc 24 b0 00 00 	lea    0xb0(%rsp),%rdi
  16:	00
  17:	ba 48 00 00 00       	mov    $0x48,%edx
  1c:	31 f6                	xor    %esi,%esi
  1e:	e8 0d f2 6b f8       	call   0xf86bf230
  23:	4d 89 ef             	mov    %r13,%r15
  26:	49 c1 ef 03          	shr    $0x3,%r15
* 2a:	43 80 3c 37 00       	cmpb   $0x0,(%r15,%r14,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 ef             	mov    %r13,%rdi
  34:	e8 27 ef 6b f8       	call   0xf86bef60
  39:	49 8b 45 00          	mov    0x0(%r13),%rax
  3d:	4c 39 e8             	cmp    %r13,%rax