[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.109' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 65.535690][ T6871] A link change request failed with some changes committed already. Interface eth0 may have been left with an inconsistent configuration, please check. [ 65.564502][ C0] ------------[ cut here ]------------ [ 65.570897][ C0] Illegal XDP return value 4294967274, expect packet loss! [ 65.579185][ C0] WARNING: CPU: 0 PID: 6872 at net/core/filter.c:7522 bpf_warn_invalid_xdp_action+0x6f/0x80 [ 65.590738][ C0] Modules linked in: [ 65.594768][ C0] CPU: 0 PID: 6872 Comm: syz-executor171 Not tainted 5.9.0-rc6-next-20200924-syzkaller #0 [ 65.605115][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.615977][ C0] RIP: 0010:bpf_warn_invalid_xdp_action+0x6f/0x80 [ 65.622881][ C0] Code: a0 22 68 89 41 83 fc 04 48 c7 c6 e0 22 68 89 48 0f 46 ee e8 e3 fc 10 fb 44 89 e2 48 c7 c7 20 23 68 89 48 89 ee e8 9c 89 b1 01 <0f> 0b 5b 5d 41 5c e9 c6 fc 10 fb 66 0f 1f 44 00 00 41 57 41 56 49 [ 65.642954][ C0] RSP: 0018:ffffc90000007a98 EFLAGS: 00010286 [ 65.649285][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 65.657769][ C0] RDX: ffff88809c0ae100 RSI: ffffffff815e0005 RDI: fffff52000000f45 [ 65.666176][ C0] RBP: ffffffff896822a0 R08: 0000000000000001 R09: ffff8880ae4319a7 [ 65.674245][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffea [ 65.682437][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90000007c88 [ 65.690733][ C0] FS: 00000000025de880(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000 [ 65.699948][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.706893][ C0] CR2: 00000000006cc090 CR3: 00000000a853d000 CR4: 00000000001506f0 [ 65.715185][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 65.723539][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 65.732271][ C0] Call Trace: [ 65.735643][ C0] [ 65.738533][ C0] netif_receive_generic_xdp+0xe65/0x1720 [ 65.744540][ C0] ? lock_is_held_type+0xbb/0xf0 [ 65.749853][ C0] __netif_receive_skb_core+0x11ee/0x3710 [ 65.756113][ C0] ? generic_xdp_tx+0x6b0/0x6b0 [ 65.761104][ C0] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 65.767283][ C0] ? lock_acquire+0x1f2/0xaa0 [ 65.771994][ C0] __netif_receive_skb_one_core+0xae/0x180 [ 65.778082][ C0] ? __netif_receive_skb_core+0x3710/0x3710 [ 65.784265][ C0] ? do_raw_spin_lock+0x120/0x2b0 [ 65.789479][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 65.794637][ C0] __netif_receive_skb+0x27/0x1c0 [ 65.799774][ C0] process_backlog+0x2e1/0x8e0 [ 65.804772][ C0] ? net_rx_action+0x2bc/0x1320 [ 65.810069][ C0] net_rx_action+0x587/0x1320 [ 65.815164][ C0] ? napi_complete_done+0x940/0x940 [ 65.820577][ C0] ? sched_clock_cpu+0x18/0x1f0 [ 65.825658][ C0] ? lock_is_held_type+0xbb/0xf0 [ 65.830882][ C0] __do_softirq+0x203/0xab6 [ 65.835623][ C0] asm_call_on_stack+0xf/0x20 [ 65.840317][ C0] [ 65.843438][ C0] do_softirq_own_stack+0x9d/0xd0 [ 65.848719][ C0] do_softirq+0x154/0x1b0 [ 65.853329][ C0] ? netlink_create+0x3b6/0x5d0 [ 65.858487][ C0] __local_bh_enable_ip+0x196/0x1f0 [ 65.863828][ C0] netlink_create+0x3f6/0x5d0 [ 65.868831][ C0] ? rtnl_af_register+0xd0/0xd0 [ 65.873726][ C0] __sock_create+0x3de/0x780 [ 65.878780][ C0] __sys_socket+0xef/0x200 [ 65.883276][ C0] ? move_addr_to_kernel+0x70/0x70 [ 65.888683][ C0] ? lock_is_held_type+0xbb/0xf0 [ 65.893659][ C0] ? check_preemption_disabled+0x50/0x130 [ 65.899643][ C0] __x64_sys_socket+0x6f/0xb0 [ 65.904458][ C0] ? syscall_enter_from_user_mode+0x1d/0x60 [ 65.910500][ C0] do_syscall_64+0x2d/0x70 [ 65.915013][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 65.921052][ C0] RIP: 0033:0x441849 [ 65.925045][ C0] Code: e8 fc ab 02 00 48 83 c4 18 c3 0f 1f 80 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 65.945146][ C0] RSP: 002b:00007fff951592b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 [ 65.953873][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441849 [ 65.962199][ C0] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000010 [ 65.970494][ C0] RBP: 000000000000fffb R08: 00000000004002c8 R09: 00000000004002c8 [ 65.978574][ C0] R10: 00000000004002c8 R11: 0000000000000246 R12: 00000000004025f0 [ 65.986860][ C0] R13: 0000000000402680 R14: 0000000000000000 R15: 0000000000000000 [ 65.995341][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 66.002496][ C0] CPU: 0 PID: 6872 Comm: syz-executor171 Not tainted 5.9.0-rc6-next-20200924-syzkaller #0 [ 66.012778][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.023405][ C0] Call Trace: [ 66.026871][ C0] [ 66.029931][ C0] dump_stack+0x198/0x1fb [ 66.034705][ C0] panic+0x382/0x7fb [ 66.038652][ C0] ? __warn_printk+0xf3/0xf3 [ 66.043422][ C0] ? __warn.cold+0x1d/0xbb [ 66.048201][ C0] ? __warn.cold+0x14/0xbb [ 66.052958][ C0] ? bpf_warn_invalid_xdp_action+0x6f/0x80 [ 66.059487][ C0] __warn.cold+0x38/0xbb [ 66.063796][ C0] ? wake_up_klogd.part.0+0x8e/0xd0 [ 66.069010][ C0] ? bpf_warn_invalid_xdp_action+0x6f/0x80 [ 66.074969][ C0] report_bug+0x1bd/0x210 [ 66.079312][ C0] handle_bug+0x38/0x90 [ 66.083627][ C0] exc_invalid_op+0x14/0x40 [ 66.088254][ C0] asm_exc_invalid_op+0x12/0x20 [ 66.093182][ C0] RIP: 0010:bpf_warn_invalid_xdp_action+0x6f/0x80 [ 66.099694][ C0] Code: a0 22 68 89 41 83 fc 04 48 c7 c6 e0 22 68 89 48 0f 46 ee e8 e3 fc 10 fb 44 89 e2 48 c7 c7 20 23 68 89 48 89 ee e8 9c 89 b1 01 <0f> 0b 5b 5d 41 5c e9 c6 fc 10 fb 66 0f 1f 44 00 00 41 57 41 56 49 [ 66.119598][ C0] RSP: 0018:ffffc90000007a98 EFLAGS: 00010286 [ 66.125964][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 66.134257][ C0] RDX: ffff88809c0ae100 RSI: ffffffff815e0005 RDI: fffff52000000f45 [ 66.142581][ C0] RBP: ffffffff896822a0 R08: 0000000000000001 R09: ffff8880ae4319a7 [ 66.150768][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffea [ 66.158861][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90000007c88 [ 66.167224][ C0] ? vprintk_func+0x95/0x1e0 [ 66.171824][ C0] ? bpf_warn_invalid_xdp_action+0x6f/0x80 [ 66.177863][ C0] netif_receive_generic_xdp+0xe65/0x1720 [ 66.183797][ C0] ? lock_is_held_type+0xbb/0xf0 [ 66.188748][ C0] __netif_receive_skb_core+0x11ee/0x3710 [ 66.195042][ C0] ? generic_xdp_tx+0x6b0/0x6b0 [ 66.200252][ C0] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 66.206324][ C0] ? lock_acquire+0x1f2/0xaa0 [ 66.211331][ C0] __netif_receive_skb_one_core+0xae/0x180 [ 66.217151][ C0] ? __netif_receive_skb_core+0x3710/0x3710 [ 66.223204][ C0] ? do_raw_spin_lock+0x120/0x2b0 [ 66.228616][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 66.233705][ C0] __netif_receive_skb+0x27/0x1c0 [ 66.238879][ C0] process_backlog+0x2e1/0x8e0 [ 66.243941][ C0] ? net_rx_action+0x2bc/0x1320 [ 66.249112][ C0] net_rx_action+0x587/0x1320 [ 66.253812][ C0] ? napi_complete_done+0x940/0x940 [ 66.259283][ C0] ? sched_clock_cpu+0x18/0x1f0 [ 66.264146][ C0] ? lock_is_held_type+0xbb/0xf0 [ 66.269595][ C0] __do_softirq+0x203/0xab6 [ 66.274236][ C0] asm_call_on_stack+0xf/0x20 [ 66.279276][ C0] [ 66.282285][ C0] do_softirq_own_stack+0x9d/0xd0 [ 66.287323][ C0] do_softirq+0x154/0x1b0 [ 66.291859][ C0] ? netlink_create+0x3b6/0x5d0 [ 66.296725][ C0] __local_bh_enable_ip+0x196/0x1f0 [ 66.302120][ C0] netlink_create+0x3f6/0x5d0 [ 66.306960][ C0] ? rtnl_af_register+0xd0/0xd0 [ 66.311826][ C0] __sock_create+0x3de/0x780 [ 66.316499][ C0] __sys_socket+0xef/0x200 [ 66.321092][ C0] ? move_addr_to_kernel+0x70/0x70 [ 66.326225][ C0] ? lock_is_held_type+0xbb/0xf0 [ 66.331473][ C0] ? check_preemption_disabled+0x50/0x130 [ 66.337599][ C0] __x64_sys_socket+0x6f/0xb0 [ 66.342330][ C0] ? syscall_enter_from_user_mode+0x1d/0x60 [ 66.348262][ C0] do_syscall_64+0x2d/0x70 [ 66.352900][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 66.358905][ C0] RIP: 0033:0x441849 [ 66.363071][ C0] Code: e8 fc ab 02 00 48 83 c4 18 c3 0f 1f 80 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 0f 83 1b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 66.383491][ C0] RSP: 002b:00007fff951592b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 [ 66.392342][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441849 [ 66.400996][ C0] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000010 [ 66.408982][ C0] RBP: 000000000000fffb R08: 00000000004002c8 R09: 00000000004002c8 [ 66.417286][ C0] R10: 00000000004002c8 R11: 0000000000000246 R12: 00000000004025f0 [ 66.425268][ C0] R13: 0000000000402680 R14: 0000000000000000 R15: 0000000000000000 [ 66.435195][ C0] Kernel Offset: disabled [ 66.439742][ C0] Rebooting in 86400 seconds..