IPVS: ftp: loaded support on port[0] = 21
IPVS: ftp: loaded support on port[0] = 21
IPVS: ftp: loaded support on port[0] = 21
IPVS: ftp: loaded support on port[0] = 21
------------[ cut here ]------------
kernel BUG at mm/kmsan/kmsan.c:909!
invalid opcode: 0000 [#1] SMP PTI
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 4490 Comm: syz-fuzzer Not tainted 4.17.0+ #9
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:kmsan_free_page+0x2a6/0x2e0 mm/kmsan/kmsan.c:966
RSP: 0018:ffff88018c94f140 EFLAGS: 00010282
RAX: 0000000000000023 RBX: ffffea0006024d70 RCX: 0000000000000009
RDX: ffff8801fd033c88 RSI: 0000000000000009 RDI: ffffea0006024000
RBP: ffff88018c94f188 R08: 0000000001080020 R09: 0000000000000002
R10: 0000000000000000 R11: ffffffff81c36d50 R12: 0000000000000200
R13: 0000000000000009 R14: 0000000000000009 R15: ffffffff8b58d000
FS:  000000c420028068(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffff600400 CR3: 00000001ca2d6000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 free_pages_prepare mm/page_alloc.c:996 [inline]
 __free_pages_ok+0x288/0x1680 mm/page_alloc.c:1254
 free_compound_page+0x8e/0xc0 mm/page_alloc.c:571
 free_transhuge_page+0x3bc/0x470 mm/huge_memory.c:2732
 __put_compound_page mm/swap.c:95 [inline]
 release_pages+0x6ff/0x1650 mm/swap.c:759
 free_pages_and_swap_cache+0x55b/0x580 mm/swap_state.c:322
 tlb_flush_mmu_free mm/memory.c:260 [inline]
 tlb_flush_mmu mm/memory.c:269 [inline]
 arch_tlb_finish_mmu mm/memory.c:284 [inline]
 tlb_finish_mmu+0x290/0x5c0 mm/memory.c:434
 exit_mmap+0x539/0x980 mm/mmap.c:3107
 __mmput+0x158/0x600 kernel/fork.c:962
 mmput+0xab/0xf0 kernel/fork.c:983
 exit_mm+0x6ed/0x7a0 kernel/exit.c:545
 do_exit+0xc12/0x3930 kernel/exit.c:854
 do_group_exit+0x1a0/0x360 kernel/exit.c:970
 get_signal+0x1405/0x1ec0 kernel/signal.c:2482
 do_signal+0xb8/0x1d20 arch/x86/kernel/signal.c:810
 exit_to_usermode_loop arch/x86/entry/common.c:162 [inline]
 prepare_exit_to_usermode+0x271/0x3a0 arch/x86/entry/common.c:196
 syscall_return_slowpath+0xe9/0x710 arch/x86/entry/common.c:265
 do_syscall_64+0x1ad/0x230 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45d911
RSP: 002b:000000c420037f18 EFLAGS: 00000246 ORIG_RAX: 000000000000010e
RAX: fffffffffffffdfe RBX: 0000000000000006 RCX: 000000000045d911
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 000000c420037f28 R08: 000000c420037f18 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000430130
R13: 00000000000000f1 R14: 0000000000000011 R15: 0000000000000000
Code: 8b 7d d0 83 c0 ff 41 89 85 cc 08 00 00 75 48 e8 a1 6b 4a ff 4c 89 7d c0 ff 75 c0 9d 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <0f> 0b 0f 1f 84 00 00 00 00 00 eb fe 0f 0b 66 90 66 2e 0f 1f 84 
RIP: kmsan_free_page+0x2a6/0x2e0 mm/kmsan/kmsan.c:966 RSP: ffff88018c94f140
---[ end trace 1b317fd4761a2447 ]---