[ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ 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 '10.128.1.42' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 62.802276][ T8479] ------------[ cut here ]------------ [ 62.807878][ T8479] unsupported nla_type 0 [ 62.808251][ T8479] WARNING: CPU: 0 PID: 8479 at net/xfrm/xfrm_compat.c:279 xfrm_alloc_compat+0xf39/0x10d0 [ 62.823296][ T8479] Modules linked in: [ 62.827306][ T8479] CPU: 1 PID: 8479 Comm: syz-executor174 Not tainted 5.10.0-rc1-next-20201030-syzkaller #0 [ 62.837428][ T8479] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.847575][ T8479] RIP: 0010:xfrm_alloc_compat+0xf39/0x10d0 [ 62.853380][ T8479] Code: de e8 3b 4a d2 f9 84 db 0f 85 b0 f8 ff ff e8 1e 52 d2 f9 8b 74 24 08 48 c7 c7 20 e5 51 8a c6 05 3b eb 3a 05 01 e8 e3 f2 0e 01 <0f> 0b e9 8d f8 ff ff e8 fb 51 d2 f9 8b 14 24 48 c7 c7 e0 e4 51 8a [ 62.873955][ T8479] RSP: 0018:ffffc900015cf378 EFLAGS: 00010282 [ 62.880103][ T8479] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 62.889193][ T8479] RDX: ffff888021221a80 RSI: ffffffff8158ed95 RDI: fffff520002b9e61 [ 62.897611][ T8479] RBP: 000000000000000c R08: 0000000000000001 R09: ffff8880b9e2005b [ 62.905695][ T8479] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffa1 [ 62.913741][ T8479] R13: ffff888143d890f8 R14: ffff88801b8b4780 R15: ffff88802148c000 [ 62.921713][ T8479] FS: 00000000017d3880(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 [ 62.930704][ T8479] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.937474][ T8479] CR2: 00007fd917a6b6c0 CR3: 000000001f6a2000 CR4: 00000000001506e0 [ 62.945561][ T8479] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.953629][ T8479] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.961618][ T8479] Call Trace: [ 62.965012][ T8479] ? xfrm_attr_cpy32+0x1d0/0x1d0 [ 62.969964][ T8479] xfrm_alloc_userspi+0x66a/0xa30 [ 62.975052][ T8479] ? __cgroup_bpf_run_filter_sock_addr+0x360/0x6f0 [ 62.981596][ T8479] ? xfrm_send_report+0x510/0x510 [ 62.986692][ T8479] ? __nla_parse+0x3d/0x50 [ 62.991285][ T8479] ? xfrm_send_report+0x510/0x510 [ 62.996379][ T8479] xfrm_user_rcv_msg+0x42f/0x8b0 [ 63.001327][ T8479] ? xfrm_do_migrate+0x800/0x800 [ 63.007256][ T8479] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 63.013259][ T8479] ? __mutex_lock+0x61b/0x1110 [ 63.018120][ T8479] netlink_rcv_skb+0x153/0x420 [ 63.022884][ T8479] ? xfrm_do_migrate+0x800/0x800 [ 63.027895][ T8479] ? netlink_ack+0xaa0/0xaa0 [ 63.032503][ T8479] xfrm_netlink_rcv+0x6b/0x90 [ 63.037254][ T8479] netlink_unicast+0x533/0x7d0 [ 63.042018][ T8479] ? netlink_attachskb+0x870/0x870 [ 63.047214][ T8479] ? __phys_addr_symbol+0x2c/0x70 [ 63.052281][ T8479] ? __check_object_size+0x171/0x3f0 [ 63.057617][ T8479] netlink_sendmsg+0x856/0xd90 [ 63.062388][ T8479] ? netlink_unicast+0x7d0/0x7d0 [ 63.067405][ T8479] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 63.072689][ T8479] ? netlink_unicast+0x7d0/0x7d0 [ 63.077707][ T8479] sock_sendmsg+0xcf/0x120 [ 63.082144][ T8479] ____sys_sendmsg+0x331/0x810 [ 63.086997][ T8479] ? kernel_sendmsg+0x50/0x50 [ 63.091671][ T8479] ? do_recvmmsg+0x6c0/0x6c0 [ 63.096330][ T8479] ? __lock_acquire+0xbbf/0x5590 [ 63.101282][ T8479] ___sys_sendmsg+0xf3/0x170 [ 63.105959][ T8479] ? sendmsg_copy_msghdr+0x160/0x160 [ 63.111243][ T8479] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 63.117281][ T8479] ? release_pages+0x83b/0x1a00 [ 63.122136][ T8479] ? lock_chain_count+0x20/0x20 [ 63.127070][ T8479] ? find_held_lock+0x2d/0x110 [ 63.131836][ T8479] ? do_huge_pmd_anonymous_page+0x12cc/0x2050 [ 63.138989][ T8479] ? lock_downgrade+0x6d0/0x6d0 [ 63.143951][ T8479] ? __fget_light+0x215/0x280 [ 63.148641][ T8479] __sys_sendmmsg+0x195/0x470 [ 63.153307][ T8479] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 63.158497][ T8479] ? sockfd_lookup_light+0xc6/0x180 [ 63.163779][ T8479] ? __sys_sendmsg+0x10c/0x1b0 [ 63.168532][ T8479] ? __sys_sendmsg_sock+0xb0/0xb0 [ 63.173616][ T8479] ? vmacache_update+0xce/0x140 [ 63.178482][ T8479] __x64_sys_sendmmsg+0x99/0x100 [ 63.183416][ T8479] ? syscall_enter_from_user_mode+0x1d/0x50 [ 63.189434][ T8479] do_syscall_64+0x2d/0x70 [ 63.193916][ T8479] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.199817][ T8479] RIP: 0033:0x440339 [ 63.205082][ T8479] 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 [ 63.224773][ T8479] RSP: 002b:00007ffcd04d1fc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 63.233214][ T8479] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440339 [ 63.241227][ T8479] RDX: 00000000000000f1 RSI: 0000000020000180 RDI: 0000000000000003 [ 63.249280][ T8479] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 63.257398][ T8479] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401b40 [ 63.266069][ T8479] R13: 0000000000401bd0 R14: 0000000000000000 R15: 0000000000000000 [ 63.274157][ T8479] Kernel panic - not syncing: panic_on_warn set ... [ 63.281720][ T8479] CPU: 1 PID: 8479 Comm: syz-executor174 Not tainted 5.10.0-rc1-next-20201030-syzkaller #0 [ 63.291704][ T8479] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.301746][ T8479] Call Trace: [ 63.305029][ T8479] dump_stack+0x107/0x163 [ 63.309340][ T8479] panic+0x306/0x73d [ 63.313216][ T8479] ? __warn_printk+0xf3/0xf3 [ 63.317796][ T8479] ? __warn.cold+0x1d/0xbb [ 63.322190][ T8479] ? __warn.cold+0x14/0xbb [ 63.326589][ T8479] ? xfrm_alloc_compat+0xf39/0x10d0 [ 63.331828][ T8479] __warn.cold+0x38/0xbb [ 63.336053][ T8479] ? wake_up_klogd.part.0+0x8e/0xd0 [ 63.341232][ T8479] ? xfrm_alloc_compat+0xf39/0x10d0 [ 63.346415][ T8479] report_bug+0x1bd/0x210 [ 63.350727][ T8479] handle_bug+0x3c/0x60 [ 63.354863][ T8479] exc_invalid_op+0x14/0x40 [ 63.359343][ T8479] asm_exc_invalid_op+0x12/0x20 [ 63.364181][ T8479] RIP: 0010:xfrm_alloc_compat+0xf39/0x10d0 [ 63.370920][ T8479] Code: de e8 3b 4a d2 f9 84 db 0f 85 b0 f8 ff ff e8 1e 52 d2 f9 8b 74 24 08 48 c7 c7 20 e5 51 8a c6 05 3b eb 3a 05 01 e8 e3 f2 0e 01 <0f> 0b e9 8d f8 ff ff e8 fb 51 d2 f9 8b 14 24 48 c7 c7 e0 e4 51 8a [ 63.390506][ T8479] RSP: 0018:ffffc900015cf378 EFLAGS: 00010282 [ 63.396555][ T8479] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 63.404507][ T8479] RDX: ffff888021221a80 RSI: ffffffff8158ed95 RDI: fffff520002b9e61 [ 63.412501][ T8479] RBP: 000000000000000c R08: 0000000000000001 R09: ffff8880b9e2005b [ 63.420450][ T8479] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffa1 [ 63.428402][ T8479] R13: ffff888143d890f8 R14: ffff88801b8b4780 R15: ffff88802148c000 [ 63.436366][ T8479] ? vprintk_func+0x95/0x1e0 [ 63.440937][ T8479] ? xfrm_alloc_compat+0xf39/0x10d0 [ 63.446117][ T8479] ? xfrm_attr_cpy32+0x1d0/0x1d0 [ 63.451035][ T8479] xfrm_alloc_userspi+0x66a/0xa30 [ 63.456044][ T8479] ? __cgroup_bpf_run_filter_sock_addr+0x360/0x6f0 [ 63.462523][ T8479] ? xfrm_send_report+0x510/0x510 [ 63.467528][ T8479] ? __nla_parse+0x3d/0x50 [ 63.471933][ T8479] ? xfrm_send_report+0x510/0x510 [ 63.476950][ T8479] xfrm_user_rcv_msg+0x42f/0x8b0 [ 63.481891][ T8479] ? xfrm_do_migrate+0x800/0x800 [ 63.486809][ T8479] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 63.492789][ T8479] ? __mutex_lock+0x61b/0x1110 [ 63.497552][ T8479] netlink_rcv_skb+0x153/0x420 [ 63.502294][ T8479] ? xfrm_do_migrate+0x800/0x800 [ 63.507210][ T8479] ? netlink_ack+0xaa0/0xaa0 [ 63.511790][ T8479] xfrm_netlink_rcv+0x6b/0x90 [ 63.516449][ T8479] netlink_unicast+0x533/0x7d0 [ 63.521195][ T8479] ? netlink_attachskb+0x870/0x870 [ 63.526329][ T8479] ? __phys_addr_symbol+0x2c/0x70 [ 63.531331][ T8479] ? __check_object_size+0x171/0x3f0 [ 63.536598][ T8479] netlink_sendmsg+0x856/0xd90 [ 63.541341][ T8479] ? netlink_unicast+0x7d0/0x7d0 [ 63.546263][ T8479] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 63.551528][ T8479] ? netlink_unicast+0x7d0/0x7d0 [ 63.556444][ T8479] sock_sendmsg+0xcf/0x120 [ 63.560839][ T8479] ____sys_sendmsg+0x331/0x810 [ 63.565600][ T8479] ? kernel_sendmsg+0x50/0x50 [ 63.570251][ T8479] ? do_recvmmsg+0x6c0/0x6c0 [ 63.574841][ T8479] ? __lock_acquire+0xbbf/0x5590 [ 63.579762][ T8479] ___sys_sendmsg+0xf3/0x170 [ 63.584333][ T8479] ? sendmsg_copy_msghdr+0x160/0x160 [ 63.589597][ T8479] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 63.595555][ T8479] ? release_pages+0x83b/0x1a00 [ 63.600395][ T8479] ? lock_chain_count+0x20/0x20 [ 63.605235][ T8479] ? find_held_lock+0x2d/0x110 [ 63.609982][ T8479] ? do_huge_pmd_anonymous_page+0x12cc/0x2050 [ 63.616033][ T8479] ? lock_downgrade+0x6d0/0x6d0 [ 63.620867][ T8479] ? __fget_light+0x215/0x280 [ 63.625535][ T8479] __sys_sendmmsg+0x195/0x470 [ 63.630192][ T8479] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 63.635230][ T8479] ? sockfd_lookup_light+0xc6/0x180 [ 63.640409][ T8479] ? __sys_sendmsg+0x10c/0x1b0 [ 63.645169][ T8479] ? __sys_sendmsg_sock+0xb0/0xb0 [ 63.650171][ T8479] ? vmacache_update+0xce/0x140 [ 63.655011][ T8479] __x64_sys_sendmmsg+0x99/0x100 [ 63.659926][ T8479] ? syscall_enter_from_user_mode+0x1d/0x50 [ 63.665798][ T8479] do_syscall_64+0x2d/0x70 [ 63.670211][ T8479] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.676087][ T8479] RIP: 0033:0x440339 [ 63.679963][ T8479] 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 [ 63.699559][ T8479] RSP: 002b:00007ffcd04d1fc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 63.707959][ T8479] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440339 [ 63.715914][ T8479] RDX: 00000000000000f1 RSI: 0000000020000180 RDI: 0000000000000003 [ 63.723866][ T8479] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 63.731839][ T8479] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401b40 [ 63.739798][ T8479] R13: 0000000000401bd0 R14: 0000000000000000 R15: 0000000000000000 [ 63.748373][ T8479] Kernel Offset: disabled [ 63.752786][ T8479] Rebooting in 86400 seconds..