[ 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 '10.128.0.69' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 67.980753][ T8412] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 67.992630][ T8412] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 68.001021][ T8412] CPU: 0 PID: 8412 Comm: syz-executor162 Not tainted 5.11.0-rc7-syzkaller #0 [ 68.009774][ T8412] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.019811][ T8412] RIP: 0010:nl802154_del_llsec_dev+0x150/0x310 [ 68.025984][ T8412] Code: 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 c4 01 00 00 48 8b 93 18 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 13 [ 68.050630][ T8412] RSP: 0018:ffffc9000100f568 EFLAGS: 00010246 [ 68.056698][ T8412] RAX: dffffc0000000000 RBX: ffff8880174f2c00 RCX: 0000000000000000 [ 68.064667][ T8412] RDX: 0000000000000000 RSI: ffffffff8888ffaa RDI: ffff8880174f2d18 [ 68.072640][ T8412] RBP: 1ffff92000201eae R08: 0000000000000000 R09: 0000000000000000 [ 68.080629][ T8412] R10: ffffffff87315ffa R11: 0000000000000000 R12: ffff88801b89c000 [ 68.088602][ T8412] R13: ffff888144740bd0 R14: ffffc9000100f8b0 R15: 0000000000000000 [ 68.096660][ T8412] FS: 00000000009a1300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 68.105592][ T8412] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.112168][ T8412] CR2: 0000000020000408 CR3: 000000001c32f000 CR4: 00000000001506f0 [ 68.120138][ T8412] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.128180][ T8412] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.136136][ T8412] Call Trace: [ 68.139410][ T8412] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 68.145692][ T8412] ? nl802154_wpan_phy_netns+0x2c0/0x2c0 [ 68.151700][ T8412] ? __nla_parse+0x3d/0x50 [ 68.156145][ T8412] ? nl802154_get_llsec_params+0x390/0x390 [ 68.161959][ T8412] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 68.161990][ T8412] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x1b7/0x280 [ 68.162019][ T8412] ? genl_family_rcv_msg_attrs_parse.constprop.0+0xaf/0x280 [ 68.162047][ T8412] genl_family_rcv_msg_doit+0x228/0x320 [ 68.162072][ T8412] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x280/0x280 [ 68.195760][ T8412] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 68.201992][ T8412] ? ns_capable+0xde/0x100 [ 68.206404][ T8412] genl_rcv_msg+0x328/0x580 [ 68.210891][ T8412] ? genl_get_cmd+0x480/0x480 [ 68.215559][ T8412] ? nl802154_wpan_phy_netns+0x2c0/0x2c0 [ 68.221200][ T8412] ? lock_release+0x710/0x710 [ 68.225868][ T8412] netlink_rcv_skb+0x153/0x420 [ 68.230647][ T8412] ? genl_get_cmd+0x480/0x480 [ 68.235311][ T8412] ? netlink_ack+0xaa0/0xaa0 [ 68.239885][ T8412] genl_rcv+0x24/0x40 [ 68.243848][ T8412] netlink_unicast+0x533/0x7d0 [ 68.248605][ T8412] ? netlink_attachskb+0x870/0x870 [ 68.253818][ T8412] ? _copy_from_iter_full+0x275/0x850 [ 68.259219][ T8412] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 68.265454][ T8412] ? __phys_addr_symbol+0x2c/0x70 [ 68.270498][ T8412] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 68.276250][ T8412] ? __check_object_size+0x171/0x3f0 [ 68.281649][ T8412] netlink_sendmsg+0x856/0xd90 [ 68.287733][ T8412] ? netlink_unicast+0x7d0/0x7d0 [ 68.292684][ T8412] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 68.298944][ T8412] ? netlink_unicast+0x7d0/0x7d0 [ 68.303894][ T8412] sock_sendmsg+0xcf/0x120 [ 68.308341][ T8412] ____sys_sendmsg+0x6e8/0x810 [ 68.313112][ T8412] ? kernel_sendmsg+0x50/0x50 [ 68.317795][ T8412] ? do_recvmmsg+0x6c0/0x6c0 [ 68.322393][ T8412] ? fs_reclaim_release+0x9c/0xe0 [ 68.327439][ T8412] ___sys_sendmsg+0xf3/0x170 [ 68.332040][ T8412] ? sendmsg_copy_msghdr+0x160/0x160 [ 68.337366][ T8412] ? lockdep_init_map_waits+0x26a/0x720 [ 68.342948][ T8412] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 68.348913][ T8412] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 68.355137][ T8412] ? percpu_counter_add_batch+0xbd/0x180 [ 68.360758][ T8412] ? find_held_lock+0x2d/0x110 [ 68.365504][ T8412] ? fd_install+0x1e3/0x640 [ 68.370023][ T8412] ? lock_downgrade+0x6d0/0x6d0 [ 68.374957][ T8412] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 68.381194][ T8412] ? __fget_light+0x215/0x280 [ 68.385852][ T8412] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 68.392080][ T8412] __sys_sendmsg+0xe5/0x1b0 [ 68.396566][ T8412] ? __sys_sendmsg_sock+0xb0/0xb0 [ 68.401572][ T8412] ? syscall_enter_from_user_mode+0x1d/0x50 [ 68.407464][ T8412] do_syscall_64+0x2d/0x70 [ 68.411872][ T8412] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 68.417760][ T8412] RIP: 0033:0x43f919 [ 68.421731][ T8412] 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 [ 68.441320][ T8412] RSP: 002b:00007ffdb22b8f78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 68.449715][ T8412] RAX: ffffffffffffffda RBX: 00000000004004a0 RCX: 000000000043f919 [ 68.457686][ T8412] RDX: 0000000000008804 RSI: 0000000020000a00 RDI: 0000000000000005 [ 68.465688][ T8412] RBP: 0000000000403380 R08: 00000000004004a0 R09: 00000000004004a0 [ 68.473639][ T8412] R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000403410 [ 68.481591][ T8412] R13: 0000000000000000 R14: 00000000004ad018 R15: 00000000004004a0 [ 68.489558][ T8412] Modules linked in: [ 68.493608][ T8412] ---[ end trace 777546a990885ae7 ]--- [ 68.500257][ T8412] RIP: 0010:nl802154_del_llsec_dev+0x150/0x310 [ 68.506499][ T8412] Code: 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 c4 01 00 00 48 8b 93 18 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 13 [ 68.526387][ T8412] RSP: 0018:ffffc9000100f568 EFLAGS: 00010246 [ 68.533115][ T8412] RAX: dffffc0000000000 RBX: ffff8880174f2c00 RCX: 0000000000000000 [ 68.541099][ T8412] RDX: 0000000000000000 RSI: ffffffff8888ffaa RDI: ffff8880174f2d18 [ 68.549597][ T8412] RBP: 1ffff92000201eae R08: 0000000000000000 R09: 0000000000000000 [ 68.557791][ T8412] R10: ffffffff87315ffa R11: 0000000000000000 R12: ffff88801b89c000 [ 68.566170][ T8412] R13: ffff888144740bd0 R14: ffffc9000100f8b0 R15: 0000000000000000 [ 68.574542][ T8412] FS: 00000000009a1300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 68.583711][ T8412] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.590316][ T8412] CR2: 00007f0110c9b000 CR3: 000000001c32f000 CR4: 00000000001506e0 [ 68.598332][ T8412] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.606347][ T8412] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.614371][ T8412] Kernel panic - not syncing: Fatal exception [ 68.620501][ T8412] Kernel Offset: disabled [ 68.624828][ T8412] Rebooting in 86400 seconds..