kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 28139 Comm: syz-executor0 Not tainted 4.20.0-rc7-next-20181224 #1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:transparent_hugepage_enabled+0x8c/0x5e0 mm/huge_memory.c:69
Code: 80 3c 02 00 0f 85 b2 04 00 00 4c 8b a3 a0 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 b8 01 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 95 04 00 00 49 8b bc 24 b8 01 00 00 e8 bd 82 e6
RSP: 0018:ffff8880512ef858 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff8880a51f1318 RCX: ffffc90005de3000
RDX: 0000000000000037 RSI: ffffffff81c8242a RDI: 00000000000001b8
RBP: ffff8880512ef880 R08: 1ffff1100b0f70b4 R09: ffffed100b0f70b5
R10: ffffed100b0f70b4 R11: ffff8880587b85a3 R12: 0000000000000000
R13: ffff8880a51f13b8 R14: 00000000000046d8 R15: 0000000000007a00
FS:  00007f697bbcb700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2ef9444000 CR3: 000000007a591000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 show_smap+0x179/0x590 fs/proc/task_mmu.c:805
net_ratelimit: 18 callbacks suppressed
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
protocol 88fb is buggy, dev hsr_slave_0
 traverse fs/seq_file.c:113 [inline]
 traverse+0x1d6/0x760 fs/seq_file.c:91
 seq_read+0x8f8/0x1130 fs/seq_file.c:188
protocol 88fb is buggy, dev hsr_slave_1
 do_loop_readv_writev fs/read_write.c:700 [inline]
 do_loop_readv_writev fs/read_write.c:687 [inline]
 do_iter_read+0x4a9/0x660 fs/read_write.c:924
 vfs_readv+0x175/0x1c0 fs/read_write.c:986
 do_preadv+0x1c4/0x280 fs/read_write.c:1070
 __do_sys_preadv fs/read_write.c:1120 [inline]
 __se_sys_preadv fs/read_write.c:1115 [inline]
 __x64_sys_preadv+0x9a/0xf0 fs/read_write.c:1115
 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
kobject: 'loop4' (00000000a1b0b0e8): kobject_uevent_env
RSP: 002b:00007f697bbcac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457ec9
RDX: 10000000000002a1 RSI: 0000000020000480 RDI: 0000000000000004
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000007a00 R11: 0000000000000246 R12: 00007f697bbcb6d4
R13: 00000000004c46f0 R14: 00000000004d79d8 R15: 00000000ffffffff
Modules linked in:
kobject: 'loop4' (00000000a1b0b0e8): fill_kobj_path: path = '/devices/virtual/block/loop4'
---[ end trace 6e27712c0c33bd19 ]---
validate_nla: 13 callbacks suppressed
netlink: 'syz-executor1': attribute type 1 has an invalid length.
RIP: 0010:transparent_hugepage_enabled+0x8c/0x5e0 mm/huge_memory.c:69
kobject: 'loop5' (0000000055b9c7ad): kobject_uevent_env
kobject: 'loop5' (0000000055b9c7ad): fill_kobj_path: path = '/devices/virtual/block/loop5'
Code: 80 3c 02 00 0f 85 b2 04 00 00 4c 8b a3 a0 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 b8 01 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 95 04 00 00 49 8b bc 24 b8 01 00 00 e8 bd 82 e6
kobject: 'loop2' (0000000004750d10): kobject_uevent_env
kobject: 'loop2' (0000000004750d10): fill_kobj_path: path = '/devices/virtual/block/loop2'
RSP: 0018:ffff8880512ef858 EFLAGS: 00010202
kobject: 'loop3' (00000000df8ab89b): kobject_uevent_env
RAX: dffffc0000000000 RBX: ffff8880a51f1318 RCX: ffffc90005de3000
kobject: 'loop3' (00000000df8ab89b): fill_kobj_path: path = '/devices/virtual/block/loop3'
RDX: 0000000000000037 RSI: ffffffff81c8242a RDI: 00000000000001b8
kobject: 'loop5' (0000000055b9c7ad): kobject_uevent_env
RBP: ffff8880512ef880 R08: 1ffff1100b0f70b4 R09: ffffed100b0f70b5
kobject: 'loop5' (0000000055b9c7ad): fill_kobj_path: path = '/devices/virtual/block/loop5'
R10: ffffed100b0f70b4 R11: ffff8880587b85a3 R12: 0000000000000000
R13: ffff8880a51f13b8 R14: 00000000000046d8 R15: 0000000000007a00
kobject: 'loop4' (00000000a1b0b0e8): kobject_uevent_env
FS:  00007f697bbcb700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
kobject: 'loop4' (00000000a1b0b0e8): fill_kobj_path: path = '/devices/virtual/block/loop4'
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'loop3' (00000000df8ab89b): kobject_uevent_env
kobject: 'loop3' (00000000df8ab89b): fill_kobj_path: path = '/devices/virtual/block/loop3'
CR2: 000000000070a158 CR3: 000000007a591000 CR4: 00000000001406e0
kobject: 'loop2' (0000000004750d10): kobject_uevent_env
kobject: 'loop2' (0000000004750d10): fill_kobj_path: path = '/devices/virtual/block/loop2'
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kobject: 'loop5' (0000000055b9c7ad): kobject_uevent_env
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'loop5' (0000000055b9c7ad): fill_kobj_path: path = '/devices/virtual/block/loop5'