BUG: unable to handle kernel paging request at fffffffb853434a0
IP: show_timer+0x1d1/0x2b0 fs/proc/base.c:2303
PGD 5e28067 P4D 5e28067 PUD 0 
Oops: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 7779 Comm: syz-executor1 Not tainted 4.15.0-rc1-mm1+ #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801d4f0c300 task.stack: ffff8801d4208000
RIP: 0010:show_timer+0x1d1/0x2b0 fs/proc/base.c:2303
RSP: 0018:ffff8801d420fac8 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: ffff8801c411da20 RCX: ffffffff81cd233e
RDX: 1fffffff70a68694 RSI: ffffc90004497000 RDI: fffffffb853434a0
RBP: ffff8801d420faf8 R08: ffffed003a7a7c55 R09: ffffed003a7a7c55
R10: ffff8801d4f0c300 R11: ffffed003a7a7c54 R12: ffffffff80000000
R13: ffff8801c6f28d00 R14: ffffffff853425a0 R15: 00000000000001a7
FS:  00007f1032afa700(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffb853434a0 CR3: 00000001c268c000 CR4: 00000000001406e0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
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: 0033:0x4529d9
RSP: 002b:00007f1032af9c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 00007f1032af9950 RCX: 00000000004529d9
RDX: 0000000000000008 RSI: 0000000020508000 RDI: 0000000000000013
RBP: 00007f1032af9940 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000004b7346
R13: 00007f1032af9ac8 R14: 00000000004b7351 R15: 0000000000000000
Code: 4d 63 e4 e8 72 08 a3 ff 4a 8d 3c e5 a0 34 34 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 a0 34 34 85 4c 89 ef 45 89 f8 4c 89 f1 48 c7 c6 60 
RIP: show_timer+0x1d1/0x2b0 fs/proc/base.c:2303 RSP: ffff8801d420fac8
CR2: fffffffb853434a0
---[ end trace 627fe4f8ef44d9dd ]---