[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.68' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 70.566698][ T8442] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 70.578577][ T8442] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 70.586965][ T8442] CPU: 1 PID: 8442 Comm: syz-executor760 Not tainted 5.14.0-rc4-syzkaller #0 [ 70.595703][ T8442] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.605735][ T8442] RIP: 0010:hwsim_new_edge_nl+0xf4/0x8c0 [ 70.611387][ T8442] Code: 00 0f 85 76 07 00 00 4d 85 ed 48 8b 5b 10 0f 84 5e 05 00 00 e8 0d e3 40 fc 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 48 89 d8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 87 [ 70.630980][ T8442] RSP: 0018:ffffc9000178f568 EFLAGS: 00010246 [ 70.637033][ T8442] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 70.644991][ T8442] RDX: 0000000000000000 RSI: ffffffff8534cab3 RDI: ffff88801dd72a10 [ 70.652970][ T8442] RBP: ffffc9000178f678 R08: 0000000000000001 R09: ffffc9000178f6a8 [ 70.660933][ T8442] R10: fffff520002f1ed6 R11: 0000000000000000 R12: ffffc9000178f698 [ 70.668896][ T8442] R13: ffff888025fbd014 R14: ffff8880278afb40 R15: 0000000000000000 [ 70.676875][ T8442] FS: 00000000013a1300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 70.685813][ T8442] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.692400][ T8442] CR2: 0000000020000744 CR3: 0000000031221000 CR4: 00000000001506e0 [ 70.700375][ T8442] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.708343][ T8442] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.716306][ T8442] Call Trace: [ 70.719578][ T8442] ? hwsim_set_edge_lqi+0x7d0/0x7d0 [ 70.724792][ T8442] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.731031][ T8442] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x1b7/0x290 [ 70.738422][ T8442] ? genl_family_rcv_msg_attrs_parse.constprop.0+0xaf/0x290 [ 70.745724][ T8442] genl_family_rcv_msg_doit+0x228/0x320 [ 70.751302][ T8442] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x290/0x290 [ 70.758691][ T8442] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.764951][ T8442] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.771188][ T8442] ? ns_capable+0xd9/0x100 [ 70.775603][ T8442] genl_rcv_msg+0x328/0x580 [ 70.780111][ T8442] ? genl_get_cmd+0x480/0x480 [ 70.784785][ T8442] ? hwsim_set_edge_lqi+0x7d0/0x7d0 [ 70.790199][ T8442] ? lock_release+0x720/0x720 [ 70.794882][ T8442] netlink_rcv_skb+0x153/0x420 [ 70.799737][ T8442] ? genl_get_cmd+0x480/0x480 [ 70.804421][ T8442] ? netlink_ack+0xa60/0xa60 [ 70.809020][ T8442] ? netlink_deliver_tap+0x1b1/0xc30 [ 70.814309][ T8442] ? _copy_from_iter+0x12b/0x1320 [ 70.819331][ T8442] genl_rcv+0x24/0x40 [ 70.823315][ T8442] netlink_unicast+0x533/0x7d0 [ 70.828081][ T8442] ? netlink_attachskb+0x890/0x890 [ 70.833192][ T8442] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 70.839431][ T8442] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 70.845667][ T8442] ? __phys_addr_symbol+0x2c/0x70 [ 70.850692][ T8442] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 70.856406][ T8442] ? __check_object_size+0x16e/0x3f0 [ 70.861692][ T8442] netlink_sendmsg+0x86d/0xdb0 [ 70.866457][ T8442] ? netlink_unicast+0x7d0/0x7d0 [ 70.871394][ T8442] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.877632][ T8442] ? netlink_unicast+0x7d0/0x7d0 [ 70.882593][ T8442] sock_sendmsg+0xcf/0x120 [ 70.887020][ T8442] ____sys_sendmsg+0x6e8/0x810 [ 70.891795][ T8442] ? kernel_sendmsg+0x50/0x50 [ 70.896473][ T8442] ? do_recvmmsg+0x6d0/0x6d0 [ 70.901085][ T8442] ? do_huge_pmd_anonymous_page+0x1259/0x2740 [ 70.907151][ T8442] ? lock_downgrade+0x6e0/0x6e0 [ 70.912002][ T8442] ___sys_sendmsg+0xf3/0x170 [ 70.916588][ T8442] ? sendmsg_copy_msghdr+0x160/0x160 [ 70.921869][ T8442] ? __lock_acquire+0x162f/0x54a0 [ 70.926905][ T8442] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 70.932880][ T8442] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 70.938856][ T8442] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 70.945090][ T8442] ? __fget_light+0x215/0x280 [ 70.949768][ T8442] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 70.956006][ T8442] __sys_sendmsg+0xe5/0x1b0 [ 70.960503][ T8442] ? __sys_sendmsg_sock+0x30/0x30 [ 70.965531][ T8442] ? syscall_enter_from_user_mode+0x21/0x70 [ 70.971423][ T8442] do_syscall_64+0x35/0xb0 [ 70.975832][ T8442] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 70.981726][ T8442] RIP: 0033:0x43ef39 [ 70.985608][ T8442] Code: 28 c3 e8 2a 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 [ 71.005204][ T8442] RSP: 002b:00007fff22c3c298 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 71.013628][ T8442] RAX: ffffffffffffffda RBX: 0000000000400488 RCX: 000000000043ef39 [ 71.021590][ T8442] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 71.029562][ T8442] RBP: 0000000000402f20 R08: 0000000000000000 R09: 0000000000400488 [ 71.037521][ T8442] R10: 00000000004ac018 R11: 0000000000000246 R12: 0000000000402fb0 [ 71.045482][ T8442] R13: 0000000000000000 R14: 00000000004ac018 R15: 0000000000400488 [ 71.053453][ T8442] Modules linked in: [ 71.059331][ T8442] ---[ end trace 63fa4e15cfb16ac5 ]--- [ 71.064843][ T8442] RIP: 0010:hwsim_new_edge_nl+0xf4/0x8c0 [ 71.070488][ T8442] Code: 00 0f 85 76 07 00 00 4d 85 ed 48 8b 5b 10 0f 84 5e 05 00 00 e8 0d e3 40 fc 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 48 89 d8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 87 [ 71.090326][ T8442] RSP: 0018:ffffc9000178f568 EFLAGS: 00010246 [ 71.096613][ T8442] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 71.104868][ T8442] RDX: 0000000000000000 RSI: ffffffff8534cab3 RDI: ffff88801dd72a10 [ 71.112865][ T8442] RBP: ffffc9000178f678 R08: 0000000000000001 R09: ffffc9000178f6a8 [ 71.121506][ T8442] R10: fffff520002f1ed6 R11: 0000000000000000 R12: ffffc9000178f698 [ 71.129593][ T8442] R13: ffff888025fbd014 R14: ffff8880278afb40 R15: 0000000000000000 [ 71.137610][ T8442] FS: 00000000013a1300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 71.146577][ T8442] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.153200][ T8442] CR2: 0000000020000744 CR3: 0000000031221000 CR4: 00000000001506e0 [ 71.161168][ T8442] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.169169][ T8442] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.177172][ T8442] Kernel panic - not syncing: Fatal exception [ 71.184495][ T8442] Kernel Offset: disabled [ 71.188813][ T8442] Rebooting in 86400 seconds..