kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 3086 Comm: syzkaller331470 Not tainted 4.15.0-rc2+ #116
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: 0000000086e76f9f task.stack: 00000000a4ccd88a
RIP: 0010:show_timer+0x1c7/0x2b0 fs/proc/base.c:2274
RSP: 0018:ffff8801cbf07840 EFLAGS: 00010002
RAX: dffffc0000000000 RBX: ffff8801cbb5fe00 RCX: ffffffff81ccd0ce
RDX: 0000000050a68545 RSI: ffffffff85f1a0e0 RDI: 0000000285342a28
RBP: ffff8801cbf07870 R08: ffffed00397e91bd R09: ffffed00397e91bd
R10: ffff8801cbe6c500 R11: ffffed00397e91bc R12: 0000000060000001
R13: ffff8801cc7b6580 R14: ffffffff85341ae0 R15: 0000000000000c0e
FS:  0000000000000000(0000) GS:ffff8801db400000(0063) knlGS:0000000009ac6840
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000020b15000 CR3: 00000001cc579000 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
 compat_readv+0x1bf/0x270 fs/read_write.c:1140
 do_compat_preadv64+0xdc/0x100 fs/read_write.c:1189
 C_SYSC_preadv fs/read_write.c:1209 [inline]
 compat_SyS_preadv+0x3b/0x50 fs/read_write.c:1203
 do_syscall_32_irqs_on arch/x86/entry/common.c:327 [inline]
 do_fast_syscall_32+0x3ee/0xf9d arch/x86/entry/common.c:389
 entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:125
RIP: 0023:0xf7feec79
RSP: 002b:00000000ff97ee8c EFLAGS: 00000217 ORIG_RAX: 000000000000014d
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020b15000
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000007
RBP: 0000000020f6afa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Code: 89 c7 4c 0f 44 f1 41 83 e4 fb 4d 63 e4 e8 62 27 a3 ff 4a 8d 3c e5 20 2a 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 20 2a 34 85 4c 89 ef 
RIP: show_timer+0x1c7/0x2b0 fs/proc/base.c:2274 RSP: ffff8801cbf07840
---[ end trace deb79a0da45621a8 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..