[ 91.111663][ T27] audit: type=1800 audit(1581835095.073:26): pid=9699 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 91.909411][ T27] kauditd_printk_skb: 2 callbacks suppressed [ 91.909423][ T27] audit: type=1800 audit(1581835095.903:29): pid=9699 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 91.936104][ T27] audit: type=1800 audit(1581835095.913:30): pid=9699 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.0' (ECDSA) to the list of known hosts. syzkaller login: [ 105.224678][ T9854] IPVS: ftp: loaded support on port[0] = 21 [ 105.274288][ T9854] chnl_net:caif_netlink_parms(): no params data found [ 105.309682][ T9854] bridge0: port 1(bridge_slave_0) entered blocking state [ 105.317610][ T9854] bridge0: port 1(bridge_slave_0) entered disabled state [ 105.325548][ T9854] device bridge_slave_0 entered promiscuous mode [ 105.334731][ T9854] bridge0: port 2(bridge_slave_1) entered blocking state [ 105.341950][ T9854] bridge0: port 2(bridge_slave_1) entered disabled state [ 105.349569][ T9854] device bridge_slave_1 entered promiscuous mode [ 105.367096][ T9854] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 105.377817][ T9854] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 105.396877][ T9854] team0: Port device team_slave_0 added [ 105.404142][ T9854] team0: Port device team_slave_1 added [ 105.418906][ T9854] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 105.426008][ T9854] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 105.451927][ T9854] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 105.464649][ T9854] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 105.471669][ T9854] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 105.497652][ T9854] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 105.554095][ T9854] device hsr_slave_0 entered promiscuous mode [ 105.591900][ T9854] device hsr_slave_1 entered promiscuous mode [ 105.693586][ T9854] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 105.764831][ T9854] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 105.824533][ T9854] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 105.893853][ T9854] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 105.966641][ T9854] bridge0: port 2(bridge_slave_1) entered blocking state [ 105.973823][ T9854] bridge0: port 2(bridge_slave_1) entered forwarding state [ 105.981445][ T9854] bridge0: port 1(bridge_slave_0) entered blocking state [ 105.988602][ T9854] bridge0: port 1(bridge_slave_0) entered forwarding state [ 106.033751][ T9854] 8021q: adding VLAN 0 to HW filter on device bond0 [ 106.047015][ T2698] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 106.057364][ T2698] bridge0: port 1(bridge_slave_0) entered disabled state [ 106.065339][ T2698] bridge0: port 2(bridge_slave_1) entered disabled state [ 106.073669][ T2698] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 106.086666][ T9854] 8021q: adding VLAN 0 to HW filter on device team0 [ 106.098578][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 106.107318][ T2897] bridge0: port 1(bridge_slave_0) entered blocking state [ 106.114619][ T2897] bridge0: port 1(bridge_slave_0) entered forwarding state [ 106.127785][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 106.136260][ T2715] bridge0: port 2(bridge_slave_1) entered blocking state [ 106.143357][ T2715] bridge0: port 2(bridge_slave_1) entered forwarding state [ 106.164911][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 106.173462][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 106.182180][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 106.194267][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 106.207014][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 106.217881][ T9854] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 106.235727][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 106.243960][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 106.256231][ T9854] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 106.276718][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 106.286467][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 106.308461][ T9854] device veth0_vlan entered promiscuous mode [ 106.315431][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 106.324943][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 106.334303][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 106.343072][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 106.355319][ T9854] device veth1_vlan entered promiscuous mode [ 106.379509][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 106.387987][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 106.396043][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 106.404618][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 106.415557][ T9854] device veth0_macvtap entered promiscuous mode [ 106.426697][ T9854] device veth1_macvtap entered promiscuous mode [ 106.444266][ T9854] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 106.452434][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 106.460873][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 106.469114][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 106.477804][ T2715] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 106.489364][ T9854] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 106.497449][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 106.506699][ T2897] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 107.652668][ T2897] divide error: 0000 [#1] PREEMPT SMP KASAN [ 107.658612][ T2897] CPU: 0 PID: 2897 Comm: kworker/0:91 Not tainted 5.6.0-rc1-syzkaller #0 [ 107.667122][ T2897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 107.678999][ T2897] Workqueue: wg-crypt-wg0 wg_packet_encrypt_worker [ 107.685505][ T2897] RIP: 0010:encrypt_packet+0xf8/0x920 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 107.690882][ T2897] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 49 06 00 00 8b 4b 3c 44 89 f0 31 d2 48 89 df f1 44 8d 62 0f 41 83 e4 f0 44 39 e1 44 0f 46 e1 41 29 d4 45 8d [ 107.710500][ T2897] RSP: 0018:ffffc90008f4f7a8 EFLAGS: 00010246 [ 107.716568][ T2897] RAX: 0000000000000000 RBX: ffff8880a90411c0 RCX: 0000000000000000 [ 107.724561][ T2897] RDX: 0000000000000000 RSI: ffffffff84ba2adf RDI: ffff8880a90411c0 [ 107.732538][ T2897] RBP: ffffc90008f4fc08 R08: 1ffffffff16a3385 R09: fffffbfff16a3386 [ 107.740508][ T2897] R10: fffffbfff16a3385 R11: ffffffff8b519c2f R12: dffffc0000000000 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 107.748619][ T2897] R13: ffffc90008f4fbe0 R14: 0000000000000000 R15: dffffc0000000000 [ 107.756605][ T2897] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 107.765677][ T2897] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 107.772264][ T2897] CR2: 00000000080a7dd0 CR3: 0000000009a6d000 CR4: 00000000001406f0 [ 107.780241][ T2897] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 107.788224][ T2897] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 107.796198][ T2897] Call Trace: executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 107.799498][ T2897] ? wg_packet_send_handshake_initiation+0x250/0x250 [ 107.806194][ T2897] ? unwind_next_frame.part.0+0x1a9/0xa20 [ 107.812056][ T2897] ? unwind_dump+0x100/0x100 [ 107.816671][ T2897] ? unwind_dump+0x100/0x100 [ 107.821279][ T2897] ? profile_setup.cold+0xbb/0xbb [ 107.826317][ T2897] ? unwind_next_frame+0x3b/0x50 [ 107.831273][ T2897] ? arch_stack_walk+0x81/0xf0 [ 107.836061][ T2897] ? ret_from_fork+0x24/0x30 [ 107.840663][ T2897] ? stack_trace_save+0x8f/0xc0 [ 107.845513][ T2897] ? __kasan_check_read+0x11/0x20 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 107.850540][ T2897] ? mark_lock+0xc2/0x1220 [ 107.854962][ T2897] ? __kasan_check_read+0x11/0x20 [ 107.860101][ T2897] ? mark_lock+0xc2/0x1220 [ 107.864524][ T2897] ? mark_lock+0xc2/0x1220 [ 107.868943][ T2897] ? __kasan_check_read+0x11/0x20 [ 107.873986][ T2897] ? __lock_acquire+0x16f2/0x4a00 [ 107.879014][ T2897] ? __lock_acquire+0x16f2/0x4a00 [ 107.884052][ T2897] ? cpuacct_charge+0x1db/0x360 [ 107.889085][ T2897] ? __kasan_check_read+0x11/0x20 [ 107.894145][ T2897] ? mark_lock+0xc2/0x1220 [ 107.898591][ T2897] ? find_held_lock+0x35/0x130 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 107.903484][ T2897] ? mark_held_locks+0xa4/0xf0 [ 107.908278][ T2897] ? __local_bh_enable_ip+0x15a/0x270 [ 107.913676][ T2897] ? _raw_spin_unlock_bh+0x2c/0x30 [ 107.918804][ T2897] ? __local_bh_enable_ip+0x15a/0x270 [ 107.924198][ T2897] ? lockdep_hardirqs_on+0x421/0x5e0 [ 107.929498][ T2897] ? wg_packet_encrypt_worker+0x2c6/0xe00 [ 107.935223][ T2897] ? trace_hardirqs_on+0x67/0x240 [ 107.940250][ T2897] ? wg_packet_encrypt_worker+0x2c6/0xe00 [ 107.945984][ T2897] ? __local_bh_enable_ip+0x15a/0x270 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 107.951373][ T2897] wg_packet_encrypt_worker+0x33f/0xe00 [ 107.957040][ T2897] ? wg_packet_tx_worker+0xc00/0xc00 [ 107.962436][ T2897] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 107.968200][ T2897] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 107.974187][ T2897] ? trace_hardirqs_on+0x67/0x240 [ 107.979228][ T2897] process_one_work+0xa05/0x17a0 [ 107.984290][ T2897] ? mark_held_locks+0xf0/0xf0 [ 107.989071][ T2897] ? pwq_dec_nr_in_flight+0x320/0x320 [ 107.994455][ T2897] ? lock_acquire+0x190/0x410 [ 107.999156][ T2897] worker_thread+0x98/0xe40 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 108.003682][ T2897] kthread+0x361/0x430 [ 108.007764][ T2897] ? process_one_work+0x17a0/0x17a0 [ 108.013050][ T2897] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 108.018774][ T2897] ret_from_fork+0x24/0x30 [ 108.023204][ T2897] Modules linked in: [ 108.031119][ T2897] ---[ end trace 391f031978a42d37 ]--- [ 108.037009][ T2897] RIP: 0010:encrypt_packet+0xf8/0x920 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 108.043217][ T2897] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 49 06 00 00 8b 4b 3c 44 89 f0 31 d2 48 89 df f1 44 8d 62 0f 41 83 e4 f0 44 39 e1 44 0f 46 e1 41 29 d4 45 8d [ 108.063519][ T2897] RSP: 0018:ffffc90008f4f7a8 EFLAGS: 00010246 [ 108.069598][ T2897] RAX: 0000000000000000 RBX: ffff8880a90411c0 RCX: 0000000000000000 [ 108.078016][ T2897] RDX: 0000000000000000 RSI: ffffffff84ba2adf RDI: ffff8880a90411c0 [ 108.086424][ T2897] RBP: ffffc90008f4fc08 R08: 1ffffffff16a3385 R09: fffffbfff16a3386 [ 108.094818][ T2897] R10: fffffbfff16a3385 R11: ffffffff8b519c2f R12: dffffc0000000000 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 108.103118][ T2897] R13: ffffc90008f4fbe0 R14: 0000000000000000 R15: dffffc0000000000 [ 108.111110][ T2897] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 108.120302][ T2897] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 108.127835][ T2897] CR2: 00000000080a7dd0 CR3: 00000000aa5e3000 CR4: 00000000001406f0 [ 108.136559][ T2897] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 108.144937][ T2897] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 executing program [ 108.153503][ T2897] Kernel panic - not syncing: Fatal exception [ 108.161019][ T2897] Kernel Offset: disabled [ 108.165347][ T2897] Rebooting in 86400 seconds..