[  OK  ] Started Getty on tty4.
[  OK  ] Started Getty on tty3.
[  OK  ] Started Getty on tty1.
[  OK  ] Started Serial Getty on ttyS0.
[  OK  ] Started Getty on tty2.
[  OK  ] Reached target Login Prompts.
[  OK  ] Reached target Multi-User System.
[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
[  OK  ] Started Update UTMP about System Runlevel Changes.

Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.195' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   70.925386][ T8434] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
[   70.937470][ T8434] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
[   70.945897][ T8434] CPU: 0 PID: 8434 Comm: syz-executor691 Not tainted 5.11.0-rc7-syzkaller #0
[   70.954853][ T8434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   70.965029][ T8434] RIP: 0010:nl802154_del_llsec_key+0x16d/0x320
[   70.971203][ T8434] Code: 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 ab 01 00 00 48 8b 93 28 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 d1 48 c1 e9 03 <0f> b6 0c 01 48 89 d0 83 e0 07 83 c0 01 38 c8 7c 08 84 c9 0f 85 16
[   70.991110][ T8434] RSP: 0018:ffffc90001abf528 EFLAGS: 00010246
[   70.997295][ T8434] RAX: dffffc0000000000 RBX: ffff88801847fc00 RCX: 0000000000000000
[   71.005541][ T8434] RDX: 0000000000000000 RSI: ffffffff88892647 RDI: ffff88801847fd28
[   71.013521][ T8434] RBP: 1ffff92000357ea6 R08: 0000000000000000 R09: 0000000000000000
[   71.021504][ T8434] R10: ffffffff8731625a R11: 0000000000000000 R12: ffff888144a80000
[   71.029474][ T8434] R13: ffff8881448fcbd0 R14: ffffc90001abf8b0 R15: 0000000000000000
[   71.037676][ T8434] FS:  0000000001d99300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
[   71.046712][ T8434] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   71.053309][ T8434] CR2: 0000000020000048 CR3: 0000000015550000 CR4: 00000000001506f0
[   71.061423][ T8434] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   71.069502][ T8434] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   71.077483][ T8434] Call Trace:
[   71.080781][ T8434]  ? nl802154_add_llsec_devkey+0x3d0/0x3d0
[   71.086589][ T8434]  ? __sanitizer_cov_trace_const_cmp1+0x22/0x80
[   71.093285][ T8434]  ? nl802154_pre_doit+0xf8/0xce0
[   71.098312][ T8434]  ? __nla_parse+0x3d/0x50
[   71.102843][ T8434]  ? nl802154_get_llsec_params+0x390/0x390
[   71.109129][ T8434]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[   71.115503][ T8434]  ? genl_family_rcv_msg_attrs_parse.constprop.0+0x1b7/0x280
[   71.123062][ T8434]  ? genl_family_rcv_msg_attrs_parse.constprop.0+0xaf/0x280
[   71.130458][ T8434]  genl_family_rcv_msg_doit+0x228/0x320
[   71.136061][ T8434]  ? genl_family_rcv_msg_attrs_parse.constprop.0+0x280/0x280
[   71.143703][ T8434]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[   71.150138][ T8434]  ? ns_capable+0xde/0x100
[   71.154864][ T8434]  genl_rcv_msg+0x328/0x580
[   71.159516][ T8434]  ? genl_get_cmd+0x480/0x480
[   71.164296][ T8434]  ? nl802154_add_llsec_devkey+0x3d0/0x3d0
[   71.170663][ T8434]  ? lock_release+0x710/0x710
[   71.175346][ T8434]  netlink_rcv_skb+0x153/0x420
[   71.180376][ T8434]  ? genl_get_cmd+0x480/0x480
[   71.185054][ T8434]  ? netlink_ack+0xaa0/0xaa0
[   71.189643][ T8434]  genl_rcv+0x24/0x40
[   71.193619][ T8434]  netlink_unicast+0x533/0x7d0
[   71.198372][ T8434]  ? netlink_attachskb+0x870/0x870
[   71.203476][ T8434]  ? _copy_from_iter_full+0x275/0x850
[   71.208834][ T8434]  ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70
[   71.215070][ T8434]  ? __phys_addr_symbol+0x2c/0x70
[   71.220115][ T8434]  ? __sanitizer_cov_trace_cmp8+0x1d/0x70
[   71.225853][ T8434]  ? __check_object_size+0x171/0x3f0
[   71.231307][ T8434]  netlink_sendmsg+0x856/0xd90
[   71.236070][ T8434]  ? netlink_unicast+0x7d0/0x7d0
[   71.241050][ T8434]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[   71.247290][ T8434]  ? netlink_unicast+0x7d0/0x7d0
[   71.252363][ T8434]  sock_sendmsg+0xcf/0x120
[   71.256781][ T8434]  ____sys_sendmsg+0x6e8/0x810
[   71.261539][ T8434]  ? kernel_sendmsg+0x50/0x50
[   71.266229][ T8434]  ? do_recvmmsg+0x6c0/0x6c0
[   71.270909][ T8434]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[   71.277429][ T8434]  ? netlink_recvmsg+0x826/0xee0
[   71.282367][ T8434]  ___sys_sendmsg+0xf3/0x170
[   71.286949][ T8434]  ? sendmsg_copy_msghdr+0x160/0x160
[   71.292262][ T8434]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[   71.298620][ T8434]  ? security_socket_recvmsg+0x8f/0xc0
[   71.304178][ T8434]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[   71.310432][ T8434]  ? __sys_recvfrom+0x2cc/0x3a0
[   71.315309][ T8434]  ? __ia32_sys_send+0x100/0x100
[   71.320896][ T8434]  ? fd_install+0x1e3/0x640
[   71.325400][ T8434]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[   71.331651][ T8434]  ? __fget_light+0x215/0x280
[   71.337127][ T8434]  ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70
[   71.343465][ T8434]  __sys_sendmsg+0xe5/0x1b0
[   71.347986][ T8434]  ? __sys_sendmsg_sock+0xb0/0xb0
[   71.353051][ T8434]  ? syscall_enter_from_user_mode+0x1d/0x50
[   71.359208][ T8434]  do_syscall_64+0x2d/0x70
[   71.363658][ T8434]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   71.369562][ T8434] RIP: 0033:0x43f909
[   71.373457][ T8434] Code: 28 c3 e8 5a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
[   71.393065][ T8434] RSP: 002b:00007ffd3305ef28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   71.401580][ T8434] RAX: ffffffffffffffda RBX: 00000000004004a0 RCX: 000000000043f909
[   71.409766][ T8434] RDX: 0000000020000000 RSI: 0000000020000140 RDI: 0000000000000003
[   71.417733][ T8434] RBP: 0000000000403370 R08: 000000000000000c R09: 00000000004004a0
[   71.425701][ T8434] R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000403400
[   71.433683][ T8434] R13: 0000000000000000 R14: 00000000004ad018 R15: 00000000004004a0
[   71.441740][ T8434] Modules linked in:
[   71.448270][ T8434] ---[ end trace e812501a57df1749 ]---
[   71.456408][ T8434] RIP: 0010:nl802154_del_llsec_key+0x16d/0x320
[   71.464770][ T8434] Code: 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 ab 01 00 00 48 8b 93 28 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 d1 48 c1 e9 03 <0f> b6 0c 01 48 89 d0 83 e0 07 83 c0 01 38 c8 7c 08 84 c9 0f 85 16
[   71.485720][ T8434] RSP: 0018:ffffc90001abf528 EFLAGS: 00010246
[   71.491988][ T8434] RAX: dffffc0000000000 RBX: ffff88801847fc00 RCX: 0000000000000000
[   71.500309][ T8434] RDX: 0000000000000000 RSI: ffffffff88892647 RDI: ffff88801847fd28
[   71.508323][ T8434] RBP: 1ffff92000357ea6 R08: 0000000000000000 R09: 0000000000000000
[   71.516407][ T8434] R10: ffffffff8731625a R11: 0000000000000000 R12: ffff888144a80000
[   71.524478][ T8434] R13: ffff8881448fcbd0 R14: ffffc90001abf8b0 R15: 0000000000000000
[   71.532938][ T8434] FS:  0000000001d99300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
[   71.541962][ T8434] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   71.548668][ T8434] CR2: 00007f152c03e068 CR3: 0000000015550000 CR4: 00000000001506e0
[   71.557334][ T8434] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   71.565471][ T8434] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   71.573666][ T8434] Kernel panic - not syncing: Fatal exception
[   71.580455][ T8434] Kernel Offset: disabled
[   71.584965][ T8434] Rebooting in 86400 seconds..