[ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.60' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 53.700836][ T8460] ------------[ cut here ]------------ [ 53.706445][ T8460] WARNING: CPU: 0 PID: 8460 at mm/page_alloc.c:4977 __alloc_pages_nodemask+0x4e5/0x5a0 [ 53.717462][ T8460] Modules linked in: [ 53.721382][ T8460] CPU: 1 PID: 8460 Comm: syz-executor559 Not tainted 5.11.0-rc3-syzkaller #0 [ 53.730393][ T8460] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.740549][ T8460] RIP: 0010:__alloc_pages_nodemask+0x4e5/0x5a0 [ 53.746815][ T8460] Code: ab 09 00 e9 dd fd ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c eb fd ff ff 4c 89 ef e8 f4 aa 09 00 8b 74 24 18 e9 da fd ff ff <0f> 0b e9 f3 fd ff ff a9 00 00 08 00 75 16 8b 4c 24 1c 89 cb 81 e3 [ 53.766516][ T8460] RSP: 0018:ffffc900017cf8a0 EFLAGS: 00010246 [ 53.772620][ T8460] RAX: ffffc900017cf920 RBX: ffffc900017cf920 RCX: 0000000000000000 [ 53.780880][ T8460] RDX: 0000000000000028 RSI: 0000000000000000 RDI: ffffc900017cf948 [ 53.788977][ T8460] RBP: ffffc900017cf9e0 R08: dffffc0000000000 R09: ffffc900017cf920 [ 53.797044][ T8460] R10: fffff520002f9f29 R11: 0000000000000000 R12: dffffc0000000000 [ 53.805132][ T8460] R13: 0000000000000012 R14: 1ffff920002f9f20 R15: 0000000000040cc0 [ 53.813135][ T8460] FS: 00000000025fa880(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 53.822121][ T8460] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.828798][ T8460] CR2: 00007fbe8867e6c0 CR3: 0000000021afc000 CR4: 00000000001506e0 [ 53.836838][ T8460] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.845014][ T8460] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.853012][ T8460] Call Trace: [ 53.856360][ T8460] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 53.861937][ T8460] ? alloc_pages_current+0x2e5/0x520 [ 53.867319][ T8460] kmalloc_order+0x40/0x130 [ 53.871846][ T8460] ? rcu_lock_release+0x5/0x20 [ 53.876708][ T8460] kmalloc_order_trace+0x15/0x70 [ 53.881678][ T8460] __kmalloc_track_caller+0x246/0x330 [ 53.887153][ T8460] ? cap_capable+0x27e/0x2d0 [ 53.891755][ T8460] memdup_user_nul+0x26/0xf0 [ 53.896409][ T8460] smk_write_net6addr+0x124/0x25b0 [ 53.901544][ T8460] ? smk_write_ptrace+0x250/0x250 [ 53.906677][ T8460] ? rcu_read_lock_any_held+0xb1/0x130 [ 53.913264][ T8460] ? rcu_read_lock_bh_held+0xf0/0xf0 [ 53.918664][ T8460] ? smk_write_ptrace+0x250/0x250 [ 53.923800][ T8460] vfs_write+0x289/0xc90 [ 53.928173][ T8460] ? file_end_write+0x220/0x220 [ 53.933035][ T8460] ? __up_read+0x264/0x790 [ 53.937513][ T8460] ? do_user_addr_fault+0x7e9/0xb20 [ 53.942729][ T8460] ? __fdget_pos+0x25e/0x2f0 [ 53.947419][ T8460] ksys_write+0x171/0x2a0 [ 53.951777][ T8460] ? __ia32_sys_read+0x80/0x80 [ 53.956600][ T8460] ? syscall_enter_from_user_mode+0x24/0x190 [ 53.962606][ T8460] ? syscall_enter_from_user_mode+0x24/0x190 [ 53.968704][ T8460] do_syscall_64+0x2d/0x70 [ 53.973131][ T8460] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.979177][ T8460] RIP: 0033:0x4403b9 [ 53.983105][ T8460] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 7b 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 54.003112][ T8460] RSP: 002b:00007ffc17e5a7e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 54.011650][ T8460] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004403b9 [ 54.019727][ T8460] RDX: 000000002000012e RSI: 0000000020000080 RDI: 0000000000000003 [ 54.027766][ T8460] RBP: 00000000006ca018 R08: 0000000000000014 R09: 00000000004002c8 [ 54.035845][ T8460] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401bc0 [ 54.043833][ T8460] R13: 0000000000401c50 R14: 0000000000000000 R15: 0000000000000000 [ 54.051913][ T8460] Kernel panic - not syncing: panic_on_warn set ... [ 54.058494][ T8460] CPU: 1 PID: 8460 Comm: syz-executor559 Not tainted 5.11.0-rc3-syzkaller #0 [ 54.067241][ T8460] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.077294][ T8460] Call Trace: [ 54.080562][ T8460] dump_stack+0x183/0x22e [ 54.084894][ T8460] ? log_buf_vmcoreinfo_setup+0x45d/0x45d [ 54.090600][ T8460] ? show_regs_print_info+0x12/0x12 [ 54.095802][ T8460] panic+0x2e1/0x850 [ 54.099681][ T8460] ? __kernel_text_address+0x93/0x100 [ 54.105057][ T8460] ? __warn+0x13e/0x270 [ 54.109207][ T8460] ? nmi_panic+0x90/0x90 [ 54.113442][ T8460] __warn+0x26a/0x270 [ 54.117407][ T8460] ? __alloc_pages_nodemask+0x4e5/0x5a0 [ 54.122938][ T8460] ? __alloc_pages_nodemask+0x4e5/0x5a0 [ 54.128465][ T8460] report_bug+0x1b1/0x2e0 [ 54.132799][ T8460] handle_bug+0x3d/0x70 [ 54.136937][ T8460] exc_invalid_op+0x16/0x40 [ 54.141434][ T8460] asm_exc_invalid_op+0x12/0x20 [ 54.146265][ T8460] RIP: 0010:__alloc_pages_nodemask+0x4e5/0x5a0 [ 54.152402][ T8460] Code: ab 09 00 e9 dd fd ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c eb fd ff ff 4c 89 ef e8 f4 aa 09 00 8b 74 24 18 e9 da fd ff ff <0f> 0b e9 f3 fd ff ff a9 00 00 08 00 75 16 8b 4c 24 1c 89 cb 81 e3 [ 54.172080][ T8460] RSP: 0018:ffffc900017cf8a0 EFLAGS: 00010246 [ 54.178669][ T8460] RAX: ffffc900017cf920 RBX: ffffc900017cf920 RCX: 0000000000000000 [ 54.186625][ T8460] RDX: 0000000000000028 RSI: 0000000000000000 RDI: ffffc900017cf948 [ 54.194592][ T8460] RBP: ffffc900017cf9e0 R08: dffffc0000000000 R09: ffffc900017cf920 [ 54.202571][ T8460] R10: fffff520002f9f29 R11: 0000000000000000 R12: dffffc0000000000 [ 54.210529][ T8460] R13: 0000000000000012 R14: 1ffff920002f9f20 R15: 0000000000040cc0 [ 54.218501][ T8460] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 54.224047][ T8460] ? alloc_pages_current+0x2e5/0x520 [ 54.229346][ T8460] kmalloc_order+0x40/0x130 [ 54.233835][ T8460] ? rcu_lock_release+0x5/0x20 [ 54.238616][ T8460] kmalloc_order_trace+0x15/0x70 [ 54.243548][ T8460] __kmalloc_track_caller+0x246/0x330 [ 54.248902][ T8460] ? cap_capable+0x27e/0x2d0 [ 54.253477][ T8460] memdup_user_nul+0x26/0xf0 [ 54.258065][ T8460] smk_write_net6addr+0x124/0x25b0 [ 54.263171][ T8460] ? smk_write_ptrace+0x250/0x250 [ 54.268192][ T8460] ? rcu_read_lock_any_held+0xb1/0x130 [ 54.273640][ T8460] ? rcu_read_lock_bh_held+0xf0/0xf0 [ 54.278929][ T8460] ? smk_write_ptrace+0x250/0x250 [ 54.283938][ T8460] vfs_write+0x289/0xc90 [ 54.288181][ T8460] ? file_end_write+0x220/0x220 [ 54.293037][ T8460] ? __up_read+0x264/0x790 [ 54.297435][ T8460] ? do_user_addr_fault+0x7e9/0xb20 [ 54.302623][ T8460] ? __fdget_pos+0x25e/0x2f0 [ 54.307198][ T8460] ksys_write+0x171/0x2a0 [ 54.311526][ T8460] ? __ia32_sys_read+0x80/0x80 [ 54.316273][ T8460] ? syscall_enter_from_user_mode+0x24/0x190 [ 54.322236][ T8460] ? syscall_enter_from_user_mode+0x24/0x190 [ 54.328210][ T8460] do_syscall_64+0x2d/0x70 [ 54.332621][ T8460] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 54.338494][ T8460] RIP: 0033:0x4403b9 [ 54.342369][ T8460] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 7b 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 54.361968][ T8460] RSP: 002b:00007ffc17e5a7e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 54.370387][ T8460] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004403b9 [ 54.378341][ T8460] RDX: 000000002000012e RSI: 0000000020000080 RDI: 0000000000000003 [ 54.386304][ T8460] RBP: 00000000006ca018 R08: 0000000000000014 R09: 00000000004002c8 [ 54.394273][ T8460] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401bc0 [ 54.402236][ T8460] R13: 0000000000401c50 R14: 0000000000000000 R15: 0000000000000000 [ 54.410738][ T8460] Kernel Offset: disabled [ 54.415144][ T8460] Rebooting in 86400 seconds..