BUG: unable to handle kernel paging request at fffffbfff1a6863e
IP: show_timer+0x1c7/0x2b0 fs/proc/base.c:2274
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: 3193 Comm: syzkaller217798 Not tainted 4.15.0-rc2+ #212
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:show_timer+0x1c7/0x2b0 fs/proc/base.c:2274
RSP: 0018:ffff8801c5aa79e0 EFLAGS: 00010802
RAX: dffffc0000000000 RBX: ffff8801c5390e00 RCX: ffffffff81cd11fe
RDX: 1ffffffff1a6863e RSI: ffffffff85f1a720 RDI: ffffffff8d3431f0
RBP: ffff8801c5aa7a10 R08: ffffed0038999c2d R09: ffffed0038999c2d
R10: ffff8801c55ac200 R11: ffffed0038999c2c R12: 0000000001000002
R13: ffff8801c588e140 R14: ffffffff853422a0 R15: 0000000000000c51
FS:  00007fccf7617700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbfff1a6863e CR3: 00000001c6317000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 traverse+0x248/0xa00 fs/seq_file.c:111
 seq_read+0x96a/0x13d0 fs/seq_file.c:189
 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: 0033:0x445919
RSP: 002b:00007fccf7616d38 EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000445919
RDX: 0000000000000004 RSI: 0000000020f40000 RDI: 0000000000000004
RBP: 0000000000000000 R08: 00007fccf7617700 R09: 0000000000000000
R10: 0000000002000004 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe6be4851f R14: 00007fccf76179c0 R15: 0000000000000000
Code: 89 c7 4c 0f 44 f1 41 83 e4 fb 4d 63 e4 e8 12 26 a3 ff 4a 8d 3c e5 e0 31 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 e0 31 34 85 4c 89 ef 
RIP: show_timer+0x1c7/0x2b0 fs/proc/base.c:2274 RSP: ffff8801c5aa79e0
CR2: fffffbfff1a6863e
---[ end trace 3ade8c1895b6bfb8 ]---