[ 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..