netlink: 26 bytes leftover after parsing attributes in process `syz-executor3'.
device nr0
 entered promiscuous mode
BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
kobject: 'tx-1' (00000000ea7fe957): kobject_add_internal: parent: 'queues', set: 'queues'
#PF error: [INSTR]
PGD a3d25067 P4D a3d25067 PUD 933c0067 PMD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 19025 Comm: syz-executor4 Not tainted 4.20.0+ #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:          (null)
Code: Bad RIP value.
RSP: 0018:ffff8880ae607b08 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff86238477
RDX: 0000000000000100 RSI: 0000000000000000 RDI: ffff888069da3398
RBP: ffff8880ae607e60 R08: ffff88809bae4140 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff8880ae607e38 R15: ffff888069da3398
FS:  00007fa42f478700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 0000000087481000 CR4: 00000000001406f0
DR0: ffffffffffffcad4 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
kobject: 'tx-1' (00000000ea7fe957): kobject_uevent_env
kobject: 'tx-1' (00000000ea7fe957): fill_kobj_path: path = '/devices/virtual/net/nr0
/queues/tx-1'
kobject: 'rx-1' (0000000099d436ea): kobject_add_internal: parent: 'queues', set: 'queues'
kobject: 'rx-1' (0000000099d436ea): kobject_uevent_env
 __do_softirq+0x30b/0xb11 kernel/softirq.c:292
kobject: 'rx-1' (0000000099d436ea): fill_kobj_path: path = '/devices/virtual/net/nr0
/queues/rx-1'
kobject: 'loop0' (0000000078622783): kobject_uevent_env
kobject: 'loop0' (0000000078622783): fill_kobj_path: path = '/devices/virtual/block/loop0'
 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1027
 </IRQ>
kobject: 'loop3' (000000008378b358): kobject_uevent_env
 do_softirq.part.0+0x11a/0x170 kernel/softirq.c:337
audit: type=1804 audit(1547420631.285:149): pid=19037 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor2" name="/root/syzkaller-testdir158175335/syzkaller.Hdc9DW/282/memory.events" dev="sda1" ino=16546 res=1
 do_softirq kernel/softirq.c:329 [inline]
 __local_bh_enable_ip+0x211/0x270 kernel/softirq.c:189
 local_bh_enable include/linux/bottom_half.h:32 [inline]
 tun_get_user+0x237e/0x4150 drivers/net/tun.c:1987
kobject: 'loop3' (000000008378b358): fill_kobj_path: path = '/devices/virtual/block/loop3'
 tun_chr_write_iter+0xbd/0x160 drivers/net/tun.c:2017
 call_write_iter include/linux/fs.h:1857 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x6e5/0xa80 fs/read_write.c:487
 vfs_write+0x20c/0x560 fs/read_write.c:549
 ksys_write+0x105/0x260 fs/read_write.c:598
 __do_sys_write fs/read_write.c:610 [inline]
 __se_sys_write fs/read_write.c:607 [inline]
 __x64_sys_write+0x73/0xb0 fs/read_write.c:607
 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457ec9
Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fa42f477c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9
RDX: 00000000000000e6 RSI: 00000000200004c0 RDI: 000000000000000a
RBP: 000000000073c040 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa42f4786d4
R13: 00000000004c7155 R14: 00000000004dc898 R15: 00000000ffffffff
Modules linked in:
CR2: 0000000000000000
---[ end trace 9af4ae84c3c89a18 ]---
RIP: 0010:          (null)
Code: Bad RIP value.
RSP: 0018:ffff8880ae607b08 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff86238477
RDX: 0000000000000100 RSI: 0000000000000000 RDI: ffff888069da3398
RBP: ffff8880ae607e60 R08: ffff88809bae4140 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff8880ae607e38 R15: ffff888069da3398
FS:  00007fa42f478700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 0000000087481000 CR4: 00000000001406f0
DR0: ffffffffffffcad4 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600