Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.7' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 73.005329][ C1] hrtimer: interrupt took 56826 ns executing program executing program [ 73.213074][ T8460] ------------[ cut here ]------------ [ 73.219609][ T8460] kernel BUG at include/linux/swapops.h:197! [ 73.225787][ T8460] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 73.231864][ T8460] CPU: 0 PID: 8460 Comm: syz-executor246 Not tainted 5.12.0-next-20210507-syzkaller #0 [ 73.241502][ T8460] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.251559][ T8460] RIP: 0010:zap_huge_pmd+0xe5b/0x1110 [ 73.256969][ T8460] Code: 2b 3f b8 ff 48 8b 5c 24 10 48 83 eb 01 e9 a8 f6 ff ff e8 18 3f b8 ff 48 8b 5c 24 10 48 83 eb 01 e9 66 f7 ff ff e8 05 3f b8 ff <0f> 0b e8 fe 3e b8 ff 31 f6 31 ff 49 bc 00 f0 ff ff ff ff 0f 00 e8 [ 73.276579][ T8460] RSP: 0018:ffffc90001a2f730 EFLAGS: 00010293 [ 73.282646][ T8460] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 73.290621][ T8460] RDX: ffff888024bc5580 RSI: ffffffff81bc972b RDI: 0000000000000003 [ 73.298592][ T8460] RBP: ffffc90001a2fa48 R08: 0000000000000000 R09: 0000000000000000 [ 73.306561][ T8460] R10: ffffffff81bc8ec8 R11: 0000000000000000 R12: ffff88802c9a5800 [ 73.314530][ T8460] R13: ffffea0000e58080 R14: ffff8880303bfea0 R15: 0000000000000000 [ 73.322502][ T8460] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 73.331447][ T8460] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.338033][ T8460] CR2: 00000000004c8168 CR3: 0000000016b36000 CR4: 00000000001506f0 [ 73.346005][ T8460] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.353972][ T8460] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.361939][ T8460] Call Trace: [ 73.365216][ T8460] unmap_page_range+0x1aa4/0x2650 [ 73.370260][ T8460] ? vm_normal_page_pmd+0x510/0x510 [ 73.375472][ T8460] unmap_single_vma+0x198/0x300 [ 73.380332][ T8460] unmap_vmas+0x16d/0x2f0 [ 73.384672][ T8460] ? zap_vma_ptes+0x100/0x100 [ 73.389356][ T8460] ? lockdep_hardirqs_on+0x79/0x100 [ 73.394588][ T8460] exit_mmap+0x2a8/0x590 [ 73.398841][ T8460] ? __ia32_sys_remap_file_pages+0x150/0x150 [ 73.404830][ T8460] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 73.411082][ T8460] ? __khugepaged_exit+0x2d9/0x470 [ 73.416200][ T8460] __mmput+0x122/0x470 [ 73.420273][ T8460] mmput+0x58/0x60 [ 73.424000][ T8460] do_exit+0xb0a/0x2a60 [ 73.428159][ T8460] ? irqentry_enter+0x2b/0x50 [ 73.432845][ T8460] ? mm_update_next_owner+0x7a0/0x7a0 [ 73.438237][ T8460] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 73.444397][ T8460] ? lockdep_hardirqs_on+0x79/0x100 [ 73.449611][ T8460] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 73.455773][ T8460] ? trace_hardirqs_on+0x38/0x1c0 [ 73.460806][ T8460] do_group_exit+0x125/0x310 [ 73.465428][ T8460] get_signal+0x47f/0x2150 [ 73.469857][ T8460] arch_do_signal_or_restart+0x2a8/0x1eb0 [ 73.475610][ T8460] ? find_held_lock+0x2d/0x110 [ 73.480386][ T8460] ? copy_siginfo_to_user32+0xa0/0xa0 [ 73.485775][ T8460] ? __do_sys_futex+0x2ab/0x470 [ 73.490637][ T8460] ? do_futex+0x1780/0x1780 [ 73.495149][ T8460] exit_to_user_mode_prepare+0x171/0x280 [ 73.500796][ T8460] syscall_exit_to_user_mode+0x19/0x60 [ 73.506270][ T8460] do_syscall_64+0x47/0xb0 [ 73.510691][ T8460] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 73.516587][ T8460] RIP: 0033:0x4458f9 [ 73.520480][ T8460] Code: Unable to access opcode bytes at RIP 0x4458cf. [ 73.527315][ T8460] RSP: 002b:00007f45f24e4318 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 73.535732][ T8460] RAX: fffffffffffffe00 RBX: 00000000004ca408 RCX: 00000000004458f9 [ 73.543703][ T8460] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000004ca408 [ 73.551690][ T8460] RBP: 00000000004ca400 R08: 0000000000000000 R09: 0000000000000000 executing program executing program [ 73.559667][ T8460] R10: 0000000000000000 R11: 0000000000000246 R12: 0000001000000020 [ 73.567645][ T8460] R13: 00007ffeb676771f R14: 00007f45f24e4400 R15: 0000000000022000 [ 73.575624][ T8460] Modules linked in: [ 73.579986][ T8460] ---[ end trace 8c9f5c48deec1bb7 ]--- [ 73.585526][ T8460] RIP: 0010:zap_huge_pmd+0xe5b/0x1110 [ 73.590978][ T8460] Code: 2b 3f b8 ff 48 8b 5c 24 10 48 83 eb 01 e9 a8 f6 ff ff e8 18 3f b8 ff 48 8b 5c 24 10 48 83 eb 01 e9 66 f7 ff ff e8 05 3f b8 ff <0f> 0b e8 fe 3e b8 ff 31 f6 31 ff 49 bc 00 f0 ff ff ff ff 0f 00 e8 [ 73.610705][ T8460] RSP: 0018:ffffc90001a2f730 EFLAGS: 00010293 [ 73.616849][ T8460] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 73.624892][ T8460] RDX: ffff888024bc5580 RSI: ffffffff81bc972b RDI: 0000000000000003 [ 73.632942][ T8460] RBP: ffffc90001a2fa48 R08: 0000000000000000 R09: 0000000000000000 [ 73.641055][ T8460] R10: ffffffff81bc8ec8 R11: 0000000000000000 R12: ffff88802c9a5800 [ 73.649096][ T8460] R13: ffffea0000e58080 R14: ffff8880303bfea0 R15: 0000000000000000 executing program [ 73.657112][ T8460] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 73.666149][ T8460] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.672866][ T8460] CR2: 00000000004c8168 CR3: 000000000bc8e000 CR4: 00000000001506f0 [ 73.680946][ T8460] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.689005][ T8460] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.697037][ T8460] Kernel panic - not syncing: Fatal exception [ 73.703629][ T8460] Kernel Offset: disabled [ 73.707967][ T8460] Rebooting in 86400 seconds..