Warning: Permanently added '10.128.0.21' (ECDSA) to the list of known hosts. syzkaller login: [ 66.567146][ T6909] IPVS: ftp: loaded support on port[0] = 21 [ 66.664428][ T6909] chnl_net:caif_netlink_parms(): no params data found [ 66.715800][ T6909] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.723565][ T6909] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.733804][ T6909] device bridge_slave_0 entered promiscuous mode [ 66.743533][ T6909] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.751587][ T6909] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.759913][ T6909] device bridge_slave_1 entered promiscuous mode [ 66.780070][ T6909] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.791656][ T6909] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.813953][ T6909] team0: Port device team_slave_0 added [ 66.822546][ T6909] team0: Port device team_slave_1 added [ 66.841077][ T6909] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 66.848142][ T6909] 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. [ 66.874375][ T6909] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 66.887505][ T6909] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 66.894465][ T6909] 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. [ 66.920856][ T6909] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 66.969291][ T6909] device hsr_slave_0 entered promiscuous mode [ 67.016380][ T6909] device hsr_slave_1 entered promiscuous mode [ 67.146335][ T6909] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.209140][ T6909] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.258176][ T6909] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.298388][ T6909] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.353423][ T6909] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.361082][ T6909] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.369451][ T6909] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.376643][ T6909] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.425449][ T6909] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.440488][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.451711][ T17] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.461409][ T17] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.470430][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 67.483970][ T6909] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.495872][ T2499] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.504449][ T2499] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.511995][ T2499] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.523708][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.533389][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.540570][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.568194][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.577725][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.587439][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.599724][ T2499] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.613136][ T6909] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 67.627438][ T6909] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.635448][ T2499] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.661115][ T6909] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.669630][ T2516] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.678673][ T2516] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.697570][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 67.707424][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 67.728854][ T2516] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 67.739190][ T2516] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 67.752047][ T6909] device veth0_vlan entered promiscuous mode [ 67.768852][ T6909] device veth1_vlan entered promiscuous mode [ 67.777758][ T2499] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 67.785598][ T2499] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 67.794033][ T2499] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.817953][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.828390][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 67.837206][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.850342][ T6909] device veth0_macvtap entered promiscuous mode [ 67.861402][ T6909] device veth1_macvtap entered promiscuous mode [ 67.879458][ T6909] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.887723][ T2499] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.897615][ T2499] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 67.905580][ T2499] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 67.915764][ T2499] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.928634][ T6909] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.936846][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 67.947091][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 71.269833][ C0] ================================================================== [ 71.278230][ C0] BUG: KASAN: slab-out-of-bounds in ip_icmp_error+0x52a/0x5a0 [ 71.285697][ C0] Read of size 1 at addr ffff888089323fff by task ksoftirqd/0/9 [ 71.293310][ C0] [ 71.295640][ C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.7.0-rc7-next-20200526-syzkaller #0 [ 71.304987][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.315048][ C0] Call Trace: [ 71.318326][ C0] dump_stack+0x18f/0x20d [ 71.322744][ C0] ? ip_icmp_error+0x52a/0x5a0 [ 71.327488][ C0] ? ip_icmp_error+0x52a/0x5a0 [ 71.332420][ C0] print_address_description.constprop.0.cold+0xd3/0x413 [ 71.339419][ C0] ? memcpy+0x39/0x60 [ 71.343394][ C0] ? vprintk_func+0x97/0x1a6 [ 71.347972][ C0] ? ip_icmp_error+0x52a/0x5a0 [ 71.352846][ C0] kasan_report.cold+0x1f/0x37 [ 71.358214][ C0] ? skb_clone+0x190/0x3c0 [ 71.362611][ C0] ? ip_icmp_error+0x52a/0x5a0 [ 71.367358][ C0] ip_icmp_error+0x52a/0x5a0 [ 71.371940][ C0] tcp_v4_err+0x99e/0x1ce0 [ 71.376342][ C0] ? tcp_v4_do_rcv+0x8b0/0x8b0 [ 71.381087][ C0] icmp_socket_deliver+0x1e1/0x360 [ 71.386330][ C0] icmp_unreach+0x33b/0xab0 [ 71.390846][ C0] icmp_rcv+0xee6/0x15f0 [ 71.395073][ C0] ip_protocol_deliver_rcu+0x57/0x880 [ 71.400432][ C0] ? check_preemption_disabled+0x38/0x220 [ 71.406323][ C0] ip_local_deliver_finish+0x220/0x360 [ 71.412007][ C0] ip_local_deliver+0x1c8/0x4e0 [ 71.416842][ C0] ? ip_local_deliver_finish+0x360/0x360 [ 71.422578][ C0] ? ip_rcv+0x244/0x3c0 [ 71.426924][ C0] ? ip_protocol_deliver_rcu+0x880/0x880 [ 71.432544][ C0] ? lock_downgrade+0x840/0x840 [ 71.437392][ C0] ? ip_rcv_finish_core.isra.0+0x606/0x1ea0 [ 71.443355][ C0] ip_rcv_finish+0x1da/0x2f0 [ 71.447939][ C0] ip_rcv+0xd0/0x3c0 [ 71.452030][ C0] ? ip_local_deliver+0x4e0/0x4e0 [ 71.457048][ C0] ? ip_rcv_finish_core.isra.0+0x1ea0/0x1ea0 [ 71.463086][ C0] ? ip_local_deliver+0x4e0/0x4e0 [ 71.468189][ C0] __netif_receive_skb_one_core+0x114/0x180 [ 71.474222][ C0] ? __netif_receive_skb_core+0x33f0/0x33f0 [ 71.480122][ C0] ? do_raw_spin_lock+0x120/0x2d0 [ 71.487512][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 71.492493][ C0] __netif_receive_skb+0x27/0x1c0 [ 71.497702][ C0] process_backlog+0x21e/0x7a0 [ 71.502453][ C0] ? lockdep_hardirqs_on_prepare+0x1bc/0x590 [ 71.508444][ C0] net_rx_action+0x4e1/0x10d0 [ 71.513375][ C0] ? napi_busy_loop+0x9e0/0x9e0 [ 71.518379][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 71.524349][ C0] ? lockdep_hardirqs_on_prepare+0x1bc/0x590 [ 71.530762][ C0] __do_softirq+0x268/0x9ee [ 71.535278][ C0] ? takeover_tasklets+0x810/0x810 [ 71.540387][ C0] run_ksoftirqd+0x89/0x100 [ 71.544886][ C0] smpboot_thread_fn+0x653/0x9e0 [ 71.549838][ C0] ? smpboot_register_percpu_thread+0x370/0x370 [ 71.556062][ C0] ? __kthread_parkme+0x13f/0x1e0 [ 71.561088][ C0] ? smpboot_register_percpu_thread+0x370/0x370 [ 71.567429][ C0] kthread+0x3b5/0x4a0 [ 71.571511][ C0] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 71.577314][ C0] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 71.583091][ C0] ret_from_fork+0x1f/0x30 [ 71.587516][ C0] [ 71.589846][ C0] Allocated by task 6909: [ 71.594160][ C0] save_stack+0x1b/0x40 [ 71.598400][ C0] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 71.604038][ C0] kmem_cache_alloc_trace+0x153/0x7d0 [ 71.609399][ C0] tomoyo_init_log+0x18a/0x1e50 [ 71.614361][ C0] tomoyo_supervisor+0x2dd/0xe80 [ 71.619306][ C0] tomoyo_path_number_perm+0x3e9/0x4d0 [ 71.624748][ C0] security_file_ioctl+0x6c/0xb0 [ 71.629706][ C0] ksys_ioctl+0x50/0x180 [ 71.634130][ C0] __x64_sys_ioctl+0x6f/0xb0 [ 71.638722][ C0] do_syscall_64+0x60/0xe0 [ 71.643205][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 71.649478][ C0] [ 71.651793][ C0] Freed by task 6909: [ 71.655878][ C0] save_stack+0x1b/0x40 [ 71.660131][ C0] __kasan_slab_free+0xf7/0x140 [ 71.664973][ C0] kfree+0x109/0x2b0 [ 71.668970][ C0] tomoyo_init_log+0x1483/0x1e50 [ 71.673905][ C0] tomoyo_supervisor+0x2dd/0xe80 [ 71.678826][ C0] tomoyo_path_number_perm+0x3e9/0x4d0 [ 71.684348][ C0] security_file_ioctl+0x6c/0xb0 [ 71.689305][ C0] ksys_ioctl+0x50/0x180 [ 71.693547][ C0] __x64_sys_ioctl+0x6f/0xb0 [ 71.698122][ C0] do_syscall_64+0x60/0xe0 [ 71.702540][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 71.708590][ C0] [ 71.710950][ C0] The buggy address belongs to the object at ffff888089322000 [ 71.710950][ C0] which belongs to the cache kmalloc-4k of size 4096 [ 71.725712][ C0] The buggy address is located 4095 bytes to the right of [ 71.725712][ C0] 4096-byte region [ffff888089322000, ffff888089323000) [ 71.740068][ C0] The buggy address belongs to the page: [ 71.746428][ C0] page:ffffea000224c880 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 head:ffffea000224c880 order:1 compound_mapcount:0 [ 71.759978][ C0] flags: 0xfffe0000010200(slab|head) [ 71.765278][ C0] raw: 00fffe0000010200 ffffea000224c588 ffffea00024b1888 ffff8880aa002000 [ 71.773862][ C0] raw: 0000000000000000 ffff888089322000 0000000100000001 0000000000000000 [ 71.783799][ C0] page dumped because: kasan: bad access detected [ 71.790201][ C0] [ 71.792528][ C0] Memory state around the buggy address: [ 71.798148][ C0] ffff888089323e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 71.806374][ C0] ffff888089323f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 71.814525][ C0] >ffff888089323f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 71.822732][ C0] ^ [ 71.830787][ C0] ffff888089324000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 71.838917][ C0] ffff888089324080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 71.847216][ C0] ================================================================== [ 71.855274][ C0] Disabling lock debugging due to kernel taint [ 71.861614][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 71.868210][ C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Tainted: G B 5.7.0-rc7-next-20200526-syzkaller #0 [ 71.878874][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.888926][ C0] Call Trace: [ 71.892222][ C0] dump_stack+0x18f/0x20d [ 71.896553][ C0] ? ip_icmp_error+0x4f0/0x5a0 [ 71.901429][ C0] panic+0x2e3/0x75c [ 71.905431][ C0] ? __warn_printk+0xf3/0xf3 [ 71.910016][ C0] ? ip_icmp_error+0x52a/0x5a0 [ 71.914783][ C0] ? trace_hardirqs_on+0x55/0x220 [ 71.919804][ C0] ? ip_icmp_error+0x52a/0x5a0 [ 71.924542][ C0] ? ip_icmp_error+0x52a/0x5a0 [ 71.929303][ C0] end_report+0x4d/0x53 [ 71.933437][ C0] kasan_report.cold+0xd/0x37 [ 71.938101][ C0] ? skb_clone+0x190/0x3c0 [ 71.942516][ C0] ? ip_icmp_error+0x52a/0x5a0 [ 71.947270][ C0] ip_icmp_error+0x52a/0x5a0 [ 71.951838][ C0] tcp_v4_err+0x99e/0x1ce0 [ 71.956242][ C0] ? tcp_v4_do_rcv+0x8b0/0x8b0 [ 71.960989][ C0] icmp_socket_deliver+0x1e1/0x360 [ 71.966074][ C0] icmp_unreach+0x33b/0xab0 [ 71.970566][ C0] icmp_rcv+0xee6/0x15f0 [ 71.974812][ C0] ip_protocol_deliver_rcu+0x57/0x880 [ 71.980170][ C0] ? check_preemption_disabled+0x38/0x220 [ 71.985888][ C0] ip_local_deliver_finish+0x220/0x360 [ 71.991322][ C0] ip_local_deliver+0x1c8/0x4e0 [ 71.996146][ C0] ? ip_local_deliver_finish+0x360/0x360 [ 72.001752][ C0] ? ip_rcv+0x244/0x3c0 [ 72.005881][ C0] ? ip_protocol_deliver_rcu+0x880/0x880 [ 72.011484][ C0] ? lock_downgrade+0x840/0x840 [ 72.016318][ C0] ? ip_rcv_finish_core.isra.0+0x606/0x1ea0 [ 72.022197][ C0] ip_rcv_finish+0x1da/0x2f0 [ 72.026758][ C0] ip_rcv+0xd0/0x3c0 [ 72.030652][ C0] ? ip_local_deliver+0x4e0/0x4e0 [ 72.035654][ C0] ? ip_rcv_finish_core.isra.0+0x1ea0/0x1ea0 [ 72.041724][ C0] ? ip_local_deliver+0x4e0/0x4e0 [ 72.046780][ C0] __netif_receive_skb_one_core+0x114/0x180 [ 72.052695][ C0] ? __netif_receive_skb_core+0x33f0/0x33f0 [ 72.058562][ C0] ? do_raw_spin_lock+0x120/0x2d0 [ 72.063558][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 72.068648][ C0] __netif_receive_skb+0x27/0x1c0 [ 72.073642][ C0] process_backlog+0x21e/0x7a0 [ 72.078403][ C0] ? lockdep_hardirqs_on_prepare+0x1bc/0x590 [ 72.084370][ C0] net_rx_action+0x4e1/0x10d0 [ 72.089023][ C0] ? napi_busy_loop+0x9e0/0x9e0 [ 72.093849][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 72.099806][ C0] ? lockdep_hardirqs_on_prepare+0x1bc/0x590 [ 72.105765][ C0] __do_softirq+0x268/0x9ee [ 72.110252][ C0] ? takeover_tasklets+0x810/0x810 [ 72.115346][ C0] run_ksoftirqd+0x89/0x100 [ 72.119821][ C0] smpboot_thread_fn+0x653/0x9e0 [ 72.124728][ C0] ? smpboot_register_percpu_thread+0x370/0x370 [ 72.130942][ C0] ? __kthread_parkme+0x13f/0x1e0 [ 72.135946][ C0] ? smpboot_register_percpu_thread+0x370/0x370 [ 72.142168][ C0] kthread+0x3b5/0x4a0 [ 72.146260][ C0] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 72.152124][ C0] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 72.157839][ C0] ret_from_fork+0x1f/0x30 [ 72.163794][ C0] Kernel Offset: disabled [ 72.168386][ C0] Rebooting in 86400 seconds..