Total swap = 0kB 1965969 pages RAM 0 pages HighMem/MovableOnly 106316 pages reserved ------------[ 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: 4507 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: 0000:ffff8801a590ee08 EFLAGS: 00010286 RAX: 0000000000000001 RBX: ffffea000150c0b0 RCX: 0000000000000009 RDX: ffff8801fd033c88 RSI: 0000000000000009 RDI: ffffea000150c000 RBP: ffff8801a590ee50 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: 0000563f1b399e16 CR3: 000000000ac30000 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] zap_pte_range mm/memory.c:1405 [inline] zap_pmd_range mm/memory.c:1442 [inline] zap_pud_range mm/memory.c:1471 [inline] zap_p4d_range mm/memory.c:1492 [inline] unmap_page_range+0x3228/0x3be0 mm/memory.c:1513 unmap_single_vma+0x445/0x5e0 mm/memory.c:1558 unmap_vmas+0x1f4/0x360 mm/memory.c:1588 exit_mmap+0x4d7/0x980 mm/mmap.c:3105 __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: 0000000000000005 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: ffff8801a590ee08 ---[ end trace 7039e7bb47decad1 ]---