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: 18877 Comm: syz-executor1 Not tainted 4.19.0-rc6-next-20181005+ #88
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:do_fault mm/memory.c:3524 [inline]
RIP: 0010:handle_pte_fault mm/memory.c:3762 [inline]
RIP: 0010:__handle_mm_fault+0x2d72/0x55c0 mm/memory.c:3886
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 87 20 00 00 49 8b 9c 24 b0 fe ff ff 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 57 20 00 00 48 8b 1b 31 ff 48 83 e3 9f 48 89 de
RSP: 0018:ffff8801be087480 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8160f791
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801be0875b8
RBP: ffff8801be087730 R08: ffffed003a735d4b R09: ffffed003a735d4a
R10: ffffed003a735d4a R11: ffff8801d39aea53 R12: ffff8801be087708
R13: ffff8801821eb838 R14: ffff8801bf7fcd30 R15: 0000000000000067
FS:  00007f13e2b66700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fae29439000 CR3: 00000001b962f000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 handle_mm_fault+0x54f/0xc70 mm/memory.c:3923
 faultin_page mm/gup.c:518 [inline]
 __get_user_pages+0x806/0x1b30 mm/gup.c:718
 populate_vma_page_range+0x2db/0x3d0 mm/gup.c:1222
 __mm_populate+0x286/0x4d0 mm/gup.c:1270
 mm_populate include/linux/mm.h:2311 [inline]
 vm_mmap_pgoff+0x27f/0x2c0 mm/util.c:362
 ksys_mmap_pgoff+0x4da/0x660 mm/mmap.c:1606
 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:100 [inline]
 __se_sys_mmap arch/x86/kernel/sys_x86_64.c:91 [inline]
 __x64_sys_mmap+0xe9/0x1b0 arch/x86/kernel/sys_x86_64.c:91
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457579
Code: 1d b4 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 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f13e2b65c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000457579
RDX: 0000000000000001 RSI: 0000000000002000 RDI: 0000000020ffe000
RBP: 000000000072bf00 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000012011 R11: 0000000000000246 R12: 00007f13e2b666d4
R13: 00000000004c284a R14: 00000000004d3bd0 R15: 00000000ffffffff
Modules linked in:
---[ end trace c8f3becbbe297d46 ]---
RIP: 0010:do_fault mm/memory.c:3524 [inline]
RIP: 0010:handle_pte_fault mm/memory.c:3762 [inline]
RIP: 0010:__handle_mm_fault+0x2d72/0x55c0 mm/memory.c:3886
kobject: 'loop5' (0000000065c6a450): kobject_uevent_env
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 87 20 00 00 49 8b 9c 24 b0 fe ff ff 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 57 20 00 00 48 8b 1b 31 ff 48 83 e3 9f 48 89 de
kobject: 'loop5' (0000000065c6a450): fill_kobj_path: path = '/devices/virtual/block/loop5'
RSP: 0018:ffff8801be087480 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8160f791
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8801be0875b8
RBP: ffff8801be087730 R08: ffffed003a735d4b R09: ffffed003a735d4a
R10: ffffed003a735d4a R11: ffff8801d39aea53 R12: ffff8801be087708
R13: ffff8801821eb838 R14: ffff8801bf7fcd30 R15: 0000000000000067
FS:  00007f13e2b66700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fae29439000 CR3: 00000001b962f000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400