Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.37' (ECDSA) to the list of known hosts. syzkaller login: [ 62.235036][ T7231] IPVS: ftp: loaded support on port[0] = 21 [ 62.334971][ T7231] chnl_net:caif_netlink_parms(): no params data found [ 62.391123][ T7231] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.399363][ T7231] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.408663][ T7231] device bridge_slave_0 entered promiscuous mode [ 62.418162][ T7231] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.426269][ T7231] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.434886][ T7231] device bridge_slave_1 entered promiscuous mode [ 62.456849][ T7231] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.468699][ T7231] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.492071][ T7231] team0: Port device team_slave_0 added [ 62.499837][ T7231] team0: Port device team_slave_1 added [ 62.518710][ T7231] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 62.526352][ T7231] 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. [ 62.554034][ T7231] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 62.567712][ T7231] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 62.575885][ T7231] 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. [ 62.603356][ T7231] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 62.675916][ T7231] device hsr_slave_0 entered promiscuous mode [ 62.732831][ T7231] device hsr_slave_1 entered promiscuous mode [ 62.864875][ T7231] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 62.915852][ T7231] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 62.975781][ T7231] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 63.035193][ T7231] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 63.089362][ T7231] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.096885][ T7231] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.104991][ T7231] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.112084][ T7231] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.160909][ T7231] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.176963][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.187097][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.195853][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.205555][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 63.219507][ T7231] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.231288][ T2784] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.240880][ T2784] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.248123][ T2784] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.260812][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.270516][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.277845][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.300256][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.310169][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.324142][ T2784] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 63.334605][ T2784] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.350195][ T7231] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 63.362813][ T7231] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.375787][ T2785] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 63.385822][ T2785] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.395629][ T2785] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.405280][ T2785] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.423519][ T2785] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.446991][ T7231] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.454472][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.461921][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.482992][ T2785] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 63.492489][ T2785] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 63.514120][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 63.524046][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 63.533334][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 63.541326][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 63.553201][ T7231] device veth0_vlan entered promiscuous mode [ 63.566084][ T7231] device veth1_vlan entered promiscuous mode [ 63.588521][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 63.598934][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 63.608380][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 63.617528][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 63.629537][ T7231] device veth0_macvtap entered promiscuous mode [ 63.641866][ T7231] device veth1_macvtap entered promiscuous mode [ 63.660334][ T7231] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 63.668304][ T2785] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 63.677226][ T2785] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 63.686054][ T2785] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 63.696477][ T2785] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 63.709950][ T7231] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 63.718235][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 63.727712][ T3035] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 67.033343][ C0] ================================================================== [ 67.041830][ C0] BUG: KASAN: slab-out-of-bounds in ip_icmp_error+0x52a/0x5a0 [ 67.049601][ C0] Read of size 1 at addr ffff8880915317ff by task ksoftirqd/0/9 [ 67.057255][ C0] [ 67.059680][ C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.7.0-rc6-syzkaller #0 [ 67.067900][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.078306][ C0] Call Trace: [ 67.081678][ C0] dump_stack+0x188/0x20d [ 67.086099][ C0] print_address_description.constprop.0.cold+0xd3/0x413 [ 67.093211][ C0] ? skb_splice_bits+0x1a0/0x1a0 [ 67.098182][ C0] ? __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 67.104089][ C0] ? vprintk_func+0x81/0x17e [ 67.108711][ C0] ? ip_icmp_error+0x52a/0x5a0 [ 67.117835][ C0] __kasan_report.cold+0x20/0x38 [ 67.123070][ C0] ? ip_icmp_error+0x52a/0x5a0 [ 67.128086][ C0] ? ip_icmp_error+0x52a/0x5a0 [ 67.132895][ C0] kasan_report+0x33/0x50 [ 67.137258][ C0] ip_icmp_error+0x52a/0x5a0 [ 67.142158][ C0] tcp_v4_err+0x9b2/0x1d00 [ 67.146702][ C0] ? tcp_v4_do_rcv+0x8b0/0x8b0 [ 67.151754][ C0] icmp_socket_deliver+0x1e4/0x360 [ 67.157443][ C0] icmp_unreach+0x33b/0xab0 [ 67.162153][ C0] icmp_rcv+0xee6/0x15f0 [ 67.166513][ C0] ip_protocol_deliver_rcu+0x57/0x880 [ 67.172347][ C0] ip_local_deliver_finish+0x220/0x360 [ 67.178005][ C0] ip_local_deliver+0x1c8/0x4e0 [ 67.182947][ C0] ? ip_local_deliver_finish+0x360/0x360 [ 67.189090][ C0] ? ip_rcv+0x24e/0x3c0 [ 67.193246][ C0] ? ip_protocol_deliver_rcu+0x880/0x880 [ 67.199094][ C0] ? lock_downgrade+0x840/0x840 [ 67.204151][ C0] ? ip_rcv_finish_core.isra.0+0x606/0x1ec0 [ 67.210752][ C0] ip_rcv_finish+0x1da/0x2f0 [ 67.215777][ C0] ip_rcv+0xd0/0x3c0 [ 67.219794][ C0] ? ip_local_deliver+0x4e0/0x4e0 [ 67.225200][ C0] ? ip_rcv_finish_core.isra.0+0x1ec0/0x1ec0 [ 67.231559][ C0] ? ip_local_deliver+0x4e0/0x4e0 [ 67.237810][ C0] __netif_receive_skb_one_core+0x114/0x180 [ 67.244439][ C0] ? __netif_receive_skb_core+0x31c0/0x31c0 [ 67.252103][ C0] ? do_raw_spin_lock+0x129/0x2e0 [ 67.257513][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 67.263256][ C0] __netif_receive_skb+0x27/0x1c0 [ 67.268581][ C0] process_backlog+0x21e/0x7a0 [ 67.273600][ C0] ? net_rx_action+0x25f/0x1070 [ 67.278455][ C0] net_rx_action+0x4c2/0x1070 [ 67.283137][ C0] ? napi_busy_loop+0x9e0/0x9e0 [ 67.287993][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 67.293964][ C0] __do_softirq+0x26c/0x9f7 [ 67.298455][ C0] ? takeover_tasklets+0x810/0x810 [ 67.303546][ C0] run_ksoftirqd+0x89/0x100 [ 67.308030][ C0] smpboot_thread_fn+0x653/0x9e0 [ 67.312988][ C0] ? __smpboot_create_thread.part.0+0x340/0x340 [ 67.319213][ C0] ? __kthread_parkme+0x13f/0x1e0 [ 67.324228][ C0] ? __smpboot_create_thread.part.0+0x340/0x340 [ 67.330471][ C0] kthread+0x388/0x470 [ 67.334537][ C0] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 67.340246][ C0] ret_from_fork+0x24/0x30 [ 67.344660][ C0] [ 67.346969][ C0] Allocated by task 7138: [ 67.351280][ C0] save_stack+0x1b/0x40 [ 67.355444][ C0] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 67.361061][ C0] kmem_cache_alloc+0x11b/0x740 [ 67.365898][ C0] __alloc_file+0x21/0x350 [ 67.370294][ C0] alloc_empty_file+0x6d/0x170 [ 67.375052][ C0] path_openat+0xe3/0x27d0 [ 67.379466][ C0] do_filp_open+0x192/0x260 [ 67.384044][ C0] do_sys_openat2+0x585/0x7d0 [ 67.388758][ C0] do_sys_open+0xc3/0x140 [ 67.393183][ C0] do_syscall_64+0xf6/0x7d0 [ 67.397680][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 67.403558][ C0] [ 67.405877][ C0] Freed by task 7184: [ 67.409837][ C0] save_stack+0x1b/0x40 [ 67.413970][ C0] __kasan_slab_free+0xf7/0x140 [ 67.418831][ C0] kmem_cache_free+0x7f/0x320 [ 67.423504][ C0] rcu_core+0x59f/0x1370 [ 67.428159][ C0] __do_softirq+0x26c/0x9f7 [ 67.432635][ C0] [ 67.434946][ C0] The buggy address belongs to the object at ffff8880915315c0 [ 67.434946][ C0] which belongs to the cache filp of size 488 [ 67.448377][ C0] The buggy address is located 87 bytes to the right of [ 67.448377][ C0] 488-byte region [ffff8880915315c0, ffff8880915317a8) [ 67.462082][ C0] The buggy address belongs to the page: [ 67.467856][ C0] page:ffffea0002454c40 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 [ 67.477339][ C0] flags: 0xfffe0000000200(slab) [ 67.482188][ C0] raw: 00fffe0000000200 ffffea00027bdd88 ffffea00027a6708 ffff88821bc50700 [ 67.490778][ C0] raw: 0000000000000000 ffff8880915310c0 0000000100000006 0000000000000000 [ 67.500045][ C0] page dumped because: kasan: bad access detected [ 67.506446][ C0] [ 67.508755][ C0] Memory state around the buggy address: [ 67.514365][ C0] ffff888091531680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 67.522501][ C0] ffff888091531700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 67.530576][ C0] >ffff888091531780: fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc [ 67.538712][ C0] ^ [ 67.546800][ C0] ffff888091531800: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb [ 67.554871][ C0] ffff888091531880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 67.563015][ C0] ================================================================== [ 67.571062][ C0] Disabling lock debugging due to kernel taint [ 67.577340][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 67.583941][ C0] CPU: 0 PID: 9 Comm: ksoftirqd/0 Tainted: G B 5.7.0-rc6-syzkaller #0 [ 67.593392][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.603451][ C0] Call Trace: [ 67.606754][ C0] dump_stack+0x188/0x20d [ 67.611468][ C0] panic+0x2e3/0x75c [ 67.615423][ C0] ? add_taint.cold+0x16/0x16 [ 67.620114][ C0] ? ip_icmp_error+0x52a/0x5a0 [ 67.625000][ C0] ? trace_hardirqs_on+0x55/0x220 [ 67.630031][ C0] ? ip_icmp_error+0x52a/0x5a0 [ 67.634778][ C0] end_report+0x4d/0x53 [ 67.638915][ C0] __kasan_report.cold+0xd/0x38 [ 67.643774][ C0] ? ip_icmp_error+0x52a/0x5a0 [ 67.648532][ C0] ? ip_icmp_error+0x52a/0x5a0 [ 67.653282][ C0] kasan_report+0x33/0x50 [ 67.657597][ C0] ip_icmp_error+0x52a/0x5a0 [ 67.662195][ C0] tcp_v4_err+0x9b2/0x1d00 [ 67.666623][ C0] ? tcp_v4_do_rcv+0x8b0/0x8b0 [ 67.671384][ C0] icmp_socket_deliver+0x1e4/0x360 [ 67.676609][ C0] icmp_unreach+0x33b/0xab0 [ 67.681110][ C0] icmp_rcv+0xee6/0x15f0 [ 67.685359][ C0] ip_protocol_deliver_rcu+0x57/0x880 [ 67.690718][ C0] ip_local_deliver_finish+0x220/0x360 [ 67.696166][ C0] ip_local_deliver+0x1c8/0x4e0 [ 67.701011][ C0] ? ip_local_deliver_finish+0x360/0x360 [ 67.706629][ C0] ? ip_rcv+0x24e/0x3c0 [ 67.710770][ C0] ? ip_protocol_deliver_rcu+0x880/0x880 [ 67.716420][ C0] ? lock_downgrade+0x840/0x840 [ 67.721261][ C0] ? ip_rcv_finish_core.isra.0+0x606/0x1ec0 [ 67.727152][ C0] ip_rcv_finish+0x1da/0x2f0 [ 67.731736][ C0] ip_rcv+0xd0/0x3c0 [ 67.735613][ C0] ? ip_local_deliver+0x4e0/0x4e0 [ 67.740631][ C0] ? ip_rcv_finish_core.isra.0+0x1ec0/0x1ec0 [ 67.746711][ C0] ? ip_local_deliver+0x4e0/0x4e0 [ 67.751807][ C0] __netif_receive_skb_one_core+0x114/0x180 [ 67.757690][ C0] ? __netif_receive_skb_core+0x31c0/0x31c0 [ 67.763570][ C0] ? do_raw_spin_lock+0x129/0x2e0 [ 67.768592][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 67.773518][ C0] __netif_receive_skb+0x27/0x1c0 [ 67.778531][ C0] process_backlog+0x21e/0x7a0 [ 67.783282][ C0] ? net_rx_action+0x25f/0x1070 [ 67.788128][ C0] net_rx_action+0x4c2/0x1070 [ 67.792904][ C0] ? napi_busy_loop+0x9e0/0x9e0 [ 67.797752][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 67.803728][ C0] __do_softirq+0x26c/0x9f7 [ 67.808218][ C0] ? takeover_tasklets+0x810/0x810 [ 67.813315][ C0] run_ksoftirqd+0x89/0x100 [ 67.817811][ C0] smpboot_thread_fn+0x653/0x9e0 [ 67.822733][ C0] ? __smpboot_create_thread.part.0+0x340/0x340 [ 67.830381][ C0] ? __kthread_parkme+0x13f/0x1e0 [ 67.835393][ C0] ? __smpboot_create_thread.part.0+0x340/0x340 [ 67.841650][ C0] kthread+0x388/0x470 [ 67.845721][ C0] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 67.851430][ C0] ret_from_fork+0x24/0x30 [ 67.856969][ C0] Kernel Offset: disabled [ 67.861333][ C0] Rebooting in 86400 seconds..