sg_write: data in/out 392923/4073 bytes for SCSI command 0x84-- guessing data in;
   program syz-executor2 not setting count and/or reply_len properly
device syz6 entered promiscuous mode
BUG: unable to handle kernel paging request at fffffbfff8ae869c
IP: show_timer+0x1c7/0x2b0 fs/proc/base.c:2303
PGD 21ffd3067 P4D 21ffd3067 PUD 21ffd2067 PMD 0 
Oops: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 5650 Comm: syz-executor3 Not tainted 4.15.0-rc2-next-20171208+ #63
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:show_timer+0x1c7/0x2b0 fs/proc/base.c:2303
RSP: 0018:ffff8801cb03fac8 EFLAGS: 00010806
RAX: dffffc0000000000 RBX: ffff8801c2170b40 RCX: ffffffff81cd3e8e
RDX: 1ffffffff8ae869c RSI: ffffc9000310f000 RDI: ffffffffc57434e0
RBP: ffff8801cb03faf8 R08: ffffed003999c4b5 R09: ffffed003999c4b5
R10: ffff8801ce47a3c0 R11: ffffed003999c4b4 R12: 0000000008000000
R13: ffff8801cd676040 R14: ffffffff857425e0 R15: 00000000000000e2
FS:  00007f19731e5700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbfff8ae869c CR3: 00000001cccad000 CR4: 00000000001426f0
Call Trace:
 seq_read+0xb5a/0x13d0 fs/seq_file.c:269
 do_loop_readv_writev fs/read_write.c:673 [inline]
 do_iter_read+0x3db/0x5b0 fs/read_write.c:897
 vfs_readv+0x121/0x1c0 fs/read_write.c:959
 do_preadv+0x11b/0x1a0 fs/read_write.c:1043
 SYSC_preadv fs/read_write.c:1093 [inline]
 SyS_preadv+0x30/0x40 fs/read_write.c:1088
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x452a39
RSP: 002b:00007f19731e4c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452a39
RDX: 0000000000000008 RSI: 0000000020508000 RDI: 0000000000000013
RBP: 0000000000000493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4e68
R13: 00000000ffffffff R14: 00007f19731e56d4 R15: 0000000000000000
Code: 89 c7 4c 0f 44 f1 41 83 e4 fb 4d 63 e4 e8 42 fc a2 ff 4a 8d 3c e5 e0 34 74 85 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 a2 00 00 00 4a 8b 14 e5 e0 34 74 85 4c 89 ef 
RIP: show_timer+0x1c7/0x2b0 fs/proc/base.c:2303 RSP: ffff8801cb03fac8
CR2: fffffbfff8ae869c
---[ end trace 81d04301bae4e9da ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
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Kernel Offset: disabled
Rebooting in 86400 seconds..