kasan: CONFIG_KASAN_INLINE enabled
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 11069 Comm: syz-executor.2 Not tainted 4.14.275-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff888094efa0c0 task.stack: ffff88804af90000
RIP: 0010:dev_put include/linux/netdevice.h:3381 [inline]
RIP: 0010:llc_ui_bind+0x5ba/0xa40 net/llc/af_llc.c:427
RSP: 0018:ffff88804af97d40 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90007c8c000
RDX: 00000000000000a8 RSI: ffffffff85d0b322 RDI: 0000000000000540
RBP: ffff88804af97e30 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000001 R12: ffff88809c800e00
R13: 1ffff110095f2fab R14: 0000000000000000 R15: 00000000ffffffea
FS:  00007f2f03396700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000564dafb25cc8 CR3: 0000000093657000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 SYSC_bind net/socket.c:1489 [inline]
 SyS_bind+0x174/0x1f0 net/socket.c:1475
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f2f04a210e9
RSP: 002b:00007f2f03396168 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 00007f2f04b33f60 RCX: 00007f2f04a210e9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f2f04a7b08d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffeef00a05f R14: 00007f2f03396300 R15: 0000000000022000
Code: 4e 04 0f 88 8f 29 51 01 0f 84 b3 01 00 00 e8 1e 8f 84 fb 48 8d bb 40 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 0a 04 00 00 4c 89 e7 48 8b 83 40 05 00 00 65 
RIP: dev_put include/linux/netdevice.h:3381 [inline] RSP: ffff88804af97d40
RIP: llc_ui_bind+0x5ba/0xa40 net/llc/af_llc.c:427 RSP: ffff88804af97d40
general protection fault: 0000 [#2] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 11072 Comm: syz-executor.4 Tainted: G      D         4.14.275-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff888095a42200 task.stack: ffff88808f810000
RIP: 0010:dev_put include/linux/netdevice.h:3381 [inline]
RIP: 0010:llc_ui_autobind.isra.0+0x26b/0x390 net/llc/af_llc.c:320
RSP: 0018:ffff88808f817bf8 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff8880a1a2a400 RCX: ffffc90009699000
RDX: 00000000000000a8 RSI: ffffffff85d0c563 RDI: 0000000000000540
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
---[ end trace cadba05386a9efa9 ]---
R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffea
R13: ffff88808f817e28 R14: ffff88808e6e5a00 R15: ffff88808e6e5a20
FS:  00007febdaed1700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f911677e000 CR3: 0000000099371000 CR4: 00000000003406e0
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	0f 88 8f 29 51 01    	js     0x1512995
   6:	0f 84 b3 01 00 00    	je     0x1bf
   c:	e8 1e 8f 84 fb       	callq  0xfb848f2f
  11:	48 8d bb 40 05 00 00 	lea    0x540(%rbx),%rdi
  18:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  1f:	fc ff df
  22:	48 89 fa             	mov    %rdi,%rdx
  25:	48 c1 ea 03          	shr    $0x3,%rdx
* 29:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2d:	0f 85 0a 04 00 00    	jne    0x43d
  33:	4c 89 e7             	mov    %r12,%rdi
  36:	48 8b 83 40 05 00 00 	mov    0x540(%rbx),%rax
  3d:	65                   	gs