BUG: unable to handle kernel paging request at ffffeafff90a8020
IP: [<ffffffff814f5147>] __read_once_size include/linux/compiler.h:243 [inline]
IP: [<ffffffff814f5147>] compound_head include/linux/page-flags.h:143 [inline]
IP: [<ffffffff814f5147>] PageAnon include/linux/page-flags.h:386 [inline]
IP: [<ffffffff814f5147>] page_remove_rmap+0x37/0x6d0 mm/rmap.c:1429
PGD 0 [   31.288682] 
Oops: 0000 [#1] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 11270 Comm: syz-executor463 Not tainted 4.9.120-gf85543b #24
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801c7290000 task.stack: ffff8801c11f8000
RIP: 0010:[<ffffffff814f5147>]  [<ffffffff814f5147>] __read_once_size include/linux/compiler.h:243 [inline]
RIP: 0010:[<ffffffff814f5147>]  [<ffffffff814f5147>] compound_head include/linux/page-flags.h:143 [inline]
RIP: 0010:[<ffffffff814f5147>]  [<ffffffff814f5147>] PageAnon include/linux/page-flags.h:386 [inline]
RIP: 0010:[<ffffffff814f5147>]  [<ffffffff814f5147>] page_remove_rmap+0x37/0x6d0 mm/rmap.c:1429
RSP: 0018:ffff8801c11ff6c0  EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffffeafff90a8000 RCX: 0000000000000000
RDX: 1ffffd5fff215004 RSI: ffffffff814f5128 RDI: ffffeafff90a8000
RBP: ffff8801c11ff6e8 R08: 0000000000036320 R09: 0000000000000001
R10: ffff8801c7290000 R11: 0000000000000001 R12: ffff8801c11ff980
R13: ffffeafff90a8020 R14: ffffeafff90a8000 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffeafff90a8020 CR3: 00000001bcdd0000 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffeafff90a8020 ffff8801c11ff980 ffff8801bf16d800 ffffeafff90a8000
 ffff8801bb386058 ffff8801c11ff740 ffffffff8154bfcf ffff8801c11ff990
 ffff8801c11ff988 ffff8801c11ffa00 00003ffe42a001e0 00000001bf16d000
Call Trace:
 [<ffffffff8154bfcf>] zap_huge_pmd+0x16f/0x860 mm/huge_memory.c:1428
 [<ffffffff814ca80d>] zap_pmd_range mm/memory.c:1245 [inline]
 [<ffffffff814ca80d>] zap_pud_range mm/memory.c:1279 [inline]
 [<ffffffff814ca80d>] unmap_page_range+0x12ad/0x1730 mm/memory.c:1300
 [<ffffffff814cad91>] unmap_single_vma+0x101/0x260 mm/memory.c:1345
 [<ffffffff814cb6d2>] unmap_vmas+0x102/0x1d0 mm/memory.c:1375
 [<ffffffff814e40c4>] exit_mmap+0x214/0x3f0 mm/mmap.c:3020
 [<ffffffff8112d5a3>] __mmput kernel/fork.c:884 [inline]
 [<ffffffff8112d5a3>] mmput+0xf3/0x2d0 kernel/fork.c:906
 [<ffffffff81142ad6>] exit_mm kernel/exit.c:514 [inline]
 [<ffffffff81142ad6>] do_exit+0x906/0x27b0 kernel/exit.c:820
 [<ffffffff81148c91>] do_group_exit+0x111/0x340 kernel/exit.c:937
 [<ffffffff8116bb0f>] get_signal+0x4cf/0x1450 kernel/signal.c:2321
 [<ffffffff81052637>] do_signal+0x87/0x19f0 arch/x86/kernel/signal.c:807
 [<ffffffff81005581>] exit_to_usermode_loop+0xe1/0x120 arch/x86/entry/common.c:157
 [<ffffffff810064d4>] prepare_exit_to_usermode arch/x86/entry/common.c:191 [inline]
 [<ffffffff810064d4>] syscall_return_slowpath arch/x86/entry/common.c:260 [inline]
 [<ffffffff810064d4>] do_syscall_64+0x364/0x490 arch/x86/entry/common.c:287
 [<ffffffff839ffcd3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: 55 41 54 53 48 89 fb e8 c8 b6 e6 ff 4c 8d 6b 20 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 b8 05 00 00 <4c> 8b 73 20 49 89 dc 41 f6 c6 01 0f 85 4b 03 00 00 e8 93 b6 e6 
RIP  [<ffffffff814f5147>] __read_once_size include/linux/compiler.h:243 [inline]
RIP  [<ffffffff814f5147>] compound_head include/linux/page-flags.h:143 [inline]
RIP  [<ffffffff814f5147>] PageAnon include/linux/page-flags.h:386 [inline]
RIP  [<ffffffff814f5147>] page_remove_rmap+0x37/0x6d0 mm/rmap.c:1429
 RSP <ffff8801c11ff6c0>
CR2: ffffeafff90a8020
---[ end trace 6cc24dc257df22cc ]---
BUG: unable to handle kernel paging request at ffffeafff9090020
IP: [<ffffffff814f5147>] __read_once_size include/linux/compiler.h:243 [inline]
IP: [<ffffffff814f5147>] compound_head include/linux/page-flags.h:143 [inline]
IP: [<ffffffff814f5147>] PageAnon include/linux/page-flags.h:386 [inline]
IP: [<ffffffff814f5147>] page_remove_rmap+0x37/0x6d0 mm/rmap.c:1429
PGD 0 

Oops: 0000 [#2] PREEMPT SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 11394 Comm: syz-executor463 Tainted: G      D         4.9.120-gf85543b #24
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801b91f4800 task.stack: ffff8801b91f8000
RIP: 0010:[<ffffffff814f5147>]  [<ffffffff814f5147>] __read_once_size include/linux/compiler.h:243 [inline]
RIP: 0010:[<ffffffff814f5147>]  [<ffffffff814f5147>] compound_head include/linux/page-flags.h:143 [inline]
RIP: 0010:[<ffffffff814f5147>]  [<ffffffff814f5147>] PageAnon include/linux/page-flags.h:386 [inline]
RIP: 0010:[<ffffffff814f5147>]  [<ffffffff814f5147>] page_remove_rmap+0x37/0x6d0 mm/rmap.c:1429
RSP: 0018:ffff8801b91ff6c0  EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffffeafff9090000 RCX: 0000000000000000
RDX: 1ffffd5fff212004 RSI: ffffffff814f5128 RDI: ffffeafff9090000
RBP: ffff8801b91ff6e8 R08: 0000000000000001 R09: 0000000000000000
R10: ffff8801b91f4800 R11: 0000000000000000 R12: ffff8801b91ff980
R13: ffffeafff9090020 R14: ffffeafff9090000 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffeafff9090020 CR3: 00000001bb103000 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffeafff9090020 ffff8801b91ff980 ffff8801c534a800 ffffeafff9090000
 ffff8801cd854630 ffff8801b91ff740 ffffffff8154bfcf ffff8801b91ff990
 ffff8801b91ff988 ffff8801b91ffa00 00003ffe424001e0 00000001c534a000
Call Trace:
 [<ffffffff8154bfcf>] zap_huge_pmd+0x16f/0x860 mm/huge_memory.c:1428
 [<ffffffff814ca80d>] zap_pmd_range mm/memory.c:1245 [inline]
 [<ffffffff814ca80d>] zap_pud_range mm/memory.c:1279 [inline]
 [<ffffffff814ca80d>] unmap_page_range+0x12ad/0x1730 mm/memory.c:1300
 [<ffffffff814cad91>] unmap_single_vma+0x101/0x260 mm/memory.c:1345
 [<ffffffff814cb6d2>] unmap_vmas+0x102/0x1d0 mm/memory.c:1375
 [<ffffffff814e40c4>] exit_mmap+0x214/0x3f0 mm/mmap.c:3020
 [<ffffffff8112d5a3>] __mmput kernel/fork.c:884 [inline]
 [<ffffffff8112d5a3>] mmput+0xf3/0x2d0 kernel/fork.c:906
 [<ffffffff81142ad6>] exit_mm kernel/exit.c:514 [inline]
 [<ffffffff81142ad6>] do_exit+0x906/0x27b0 kernel/exit.c:820
 [<ffffffff81148c91>] do_group_exit+0x111/0x340 kernel/exit.c:937
 [<ffffffff8116bb0f>] get_signal+0x4cf/0x1450 kernel/signal.c:2321
 [<ffffffff81052637>] do_signal+0x87/0x19f0 arch/x86/kernel/signal.c:807
 [<ffffffff81005581>] exit_to_usermode_loop+0xe1/0x120 arch/x86/entry/common.c:157
 [<ffffffff810064d4>] prepare_exit_to_usermode arch/x86/entry/common.c:191 [inline]
 [<ffffffff810064d4>] syscall_return_slowpath arch/x86/entry/common.c:260 [inline]
 [<ffffffff810064d4>] do_syscall_64+0x364/0x490 arch/x86/entry/common.c:287
 [<ffffffff839ffcd3>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: 55 41 54 53 48 89 fb e8 c8 b6 e6 ff 4c 8d 6b 20 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 b8 05 00 00 <4c> 8b 73 20 49 89 dc 41 f6 c6 01 0f 85 4b 03 00 00 e8 93 b6 e6 
RIP  [<ffffffff814f5147>] __read_once_size include/linux/compiler.h:243 [inline]
RIP  [<ffffffff814f5147>] compound_head include/linux/page-flags.h:143 [inline]
RIP  [<ffffffff814f5147>] PageAnon include/linux/page-flags.h:386 [inline]
RIP  [<ffffffff814f5147>] page_remove_rmap+0x37/0x6d0 mm/rmap.c:1429
 RSP <ffff8801b91ff6c0>
CR2: ffffeafff9090020
---[ end trace 6cc24dc257df22cd ]---