Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.73' (ECDSA) to the list of known hosts. syzkaller login: [ 67.449462][ T6888] IPVS: ftp: loaded support on port[0] = 21 [ 67.533452][ T6888] chnl_net:caif_netlink_parms(): no params data found [ 67.648089][ T6888] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.655752][ T6888] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.664144][ T6888] device bridge_slave_0 entered promiscuous mode [ 67.673297][ T6888] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.681373][ T6888] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.689352][ T6888] device bridge_slave_1 entered promiscuous mode [ 67.710915][ T6888] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.722232][ T6888] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.746147][ T6888] team0: Port device team_slave_0 added [ 67.753865][ T6888] team0: Port device team_slave_1 added [ 67.772273][ T6888] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 67.779559][ T6888] 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. [ 67.805930][ T6888] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 67.818626][ T6888] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 67.825755][ T6888] 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. [ 67.851844][ T6888] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 67.880304][ T6888] device hsr_slave_0 entered promiscuous mode [ 67.887007][ T6888] device hsr_slave_1 entered promiscuous mode [ 67.974769][ T6888] debugfs: Directory 'ethtool' with parent 'netdevsim0' already present! [ 67.987499][ T6888] debugfs: Directory 'ethtool' with parent 'netdevsim0' already present! [ 68.000884][ T6888] debugfs: Directory 'ethtool' with parent 'netdevsim0' already present! [ 68.016184][ T6888] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 68.029374][ T6888] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 68.038687][ T6888] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.049986][ T6888] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.077086][ T6888] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.084262][ T6888] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.092173][ T6888] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.099344][ T6888] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.147582][ T6888] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.162699][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.173521][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.182355][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.191092][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 68.204307][ T6888] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.216888][ T6861] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.226718][ T6861] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.234017][ T6861] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.252337][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.260907][ T3025] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.267976][ T3025] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.292149][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.301616][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.310424][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.321255][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.333624][ T6861] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.345139][ T6888] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.365594][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.373112][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.387689][ T6888] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.408240][ T6861] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.428414][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.437681][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.445662][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.456489][ T6888] device veth0_vlan entered promiscuous mode [ 68.469215][ T6888] device veth1_vlan entered promiscuous mode [ 68.494144][ T6861] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.502678][ T6861] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.511594][ T6861] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.524197][ T6888] device veth0_macvtap entered promiscuous mode [ 68.534836][ T6888] device veth1_macvtap entered promiscuous mode [ 68.553700][ T6888] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 68.561791][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 68.572107][ T2640] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 68.584087][ T6888] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 68.592590][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 68.602140][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 68.614310][ T6888] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 68.623999][ T6888] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.633069][ T6888] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.649347][ T6888] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.694511][ T6888] FAULT_INJECTION: forcing a failure. [ 68.694511][ T6888] name failslab, interval 1, probability 0, space 0, times 1 [ 68.707660][ T6888] CPU: 0 PID: 6888 Comm: syz-executor811 Not tainted 5.9.0-rc6-syzkaller #0 [ 68.716340][ T6888] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.726405][ T6888] Call Trace: [ 68.730021][ T6888] dump_stack+0x198/0x1fd [ 68.734363][ T6888] should_fail.cold+0x5/0x14 [ 68.738959][ T6888] should_failslab+0x5/0xf [ 68.743401][ T6888] slab_pre_alloc_hook.constprop.0+0xf4/0x1f0 [ 68.749486][ T6888] kmem_cache_alloc_node_trace+0x55/0x430 [ 68.755231][ T6888] ? lock_downgrade+0x830/0x830 [ 68.760108][ T6888] __kmalloc_node+0x38/0x60 [ 68.764616][ T6888] kvmalloc_node+0x61/0xf0 [ 68.769040][ T6888] xp_create_and_assign_umem+0x58/0x8d0 [ 68.774595][ T6888] xsk_bind+0x9a0/0xf00 [ 68.778770][ T6888] ? xsk_getsockopt+0x8e0/0x8e0 [ 68.783635][ T6888] ? bpf_lsm_socket_bind+0x5/0x10 [ 68.788659][ T6888] __sys_bind+0x1e9/0x250 [ 68.792993][ T6888] ? __ia32_sys_socketpair+0xf0/0xf0 [ 68.798293][ T6888] ? lock_is_held_type+0xbb/0xf0 [ 68.803231][ T6888] ? syscall_enter_from_user_mode+0x1d/0x60 [ 68.809121][ T6888] ? check_preemption_disabled+0x50/0x130 [ 68.814849][ T6888] __x64_sys_bind+0x6f/0xb0 [ 68.819354][ T6888] ? syscall_enter_from_user_mode+0x1d/0x60 [ 68.825243][ T6888] do_syscall_64+0x2d/0x70 [ 68.829657][ T6888] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 68.835545][ T6888] RIP: 0033:0x443959 [ 68.839442][ T6888] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 db 0d fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 68.859052][ T6888] RSP: 002b:00007fff67561368 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [ 68.867467][ T6888] RAX: ffffffffffffffda RBX: 00007fff675613c0 RCX: 0000000000443959 [ 68.875432][ T6888] RDX: 0000000000000030 RSI: 0000000020000000 RDI: 0000000000000003 [ 68.883399][ T6888] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000001bbbbbb [ 68.891369][ T6888] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 68.899336][ T6888] R13: 0000000000000007 R14: 0000000000000000 R15: 0000000000000000 [ 68.925493][ T6888] general protection fault, probably for non-canonical address 0xdffffc00000000ad: 0000 [#1] PREEMPT SMP KASAN [ 68.937221][ T6888] KASAN: null-ptr-deref in range [0x0000000000000568-0x000000000000056f] [ 68.945625][ T6888] CPU: 0 PID: 6888 Comm: syz-executor811 Not tainted 5.9.0-rc6-syzkaller #0 [ 68.954276][ T6888] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.964326][ T6888] RIP: 0010:xsk_release+0x63f/0x7d0 [ 68.969507][ T6888] Code: 00 00 48 c7 85 c8 04 00 00 00 00 00 00 e8 29 a0 47 fe 48 8d bb 68 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 66 01 00 00 48 8b 83 68 05 00 00 65 ff 08 e9 54 [ 68.989932][ T6888] RSP: 0018:ffffc90005707c90 EFLAGS: 00010202 [ 68.995979][ T6888] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff815b9de2 [ 69.003930][ T6888] RDX: 00000000000000ad RSI: ffffffff882d2317 RDI: 0000000000000568 [ 69.012221][ T6888] RBP: ffff888091aae000 R08: 0000000000000001 R09: ffffffff8d0ffaaf [ 69.020658][ T6888] R10: fffffbfff1a1ff55 R11: 0000000000000000 R12: ffff888091aae5f8 [ 69.028604][ T6888] R13: ffff888091aae4c8 R14: dffffc0000000000 R15: 1ffff11012355cb5 [ 69.036568][ T6888] FS: 0000000000000000(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000 [ 69.045513][ T6888] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.052074][ T6888] CR2: 00000000004c8b88 CR3: 0000000093ea3000 CR4: 00000000001506f0 [ 69.060045][ T6888] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.067999][ T6888] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.075955][ T6888] Call Trace: [ 69.079244][ T6888] __sock_release+0xcd/0x280 [ 69.083820][ T6888] sock_close+0x18/0x20 [ 69.087951][ T6888] __fput+0x285/0x920 [ 69.091920][ T6888] ? __sock_release+0x280/0x280 [ 69.096743][ T6888] task_work_run+0xdd/0x190 [ 69.101230][ T6888] do_exit+0xb7d/0x29f0 [ 69.105377][ T6888] ? mm_update_next_owner+0x7a0/0x7a0 [ 69.110740][ T6888] ? lock_is_held_type+0xbb/0xf0 [ 69.115670][ T6888] do_group_exit+0x125/0x310 [ 69.120250][ T6888] __x64_sys_exit_group+0x3a/0x50 [ 69.131620][ T6888] do_syscall_64+0x2d/0x70 [ 69.136033][ T6888] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 69.141906][ T6888] RIP: 0033:0x442588 [ 69.145781][ T6888] Code: Bad RIP value. [ 69.149820][ T6888] RSP: 002b:00007fff67561328 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 69.158302][ T6888] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000442588 [ 69.166269][ T6888] RDX: 0000000000000001 RSI: 000000000000003c RDI: 0000000000000001 [ 69.174239][ T6888] RBP: 00000000004c8b50 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 69.182215][ T6888] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 69.190191][ T6888] R13: 00000000006dd280 R14: 0000000000000000 R15: 0000000000000000 [ 69.198163][ T6888] Modules linked in: [ 69.207493][ T6888] ---[ end trace 9742ad575ae08359 ]--- [ 69.214899][ T6888] RIP: 0010:xsk_release+0x63f/0x7d0 [ 69.220253][ T6888] Code: 00 00 48 c7 85 c8 04 00 00 00 00 00 00 e8 29 a0 47 fe 48 8d bb 68 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 66 01 00 00 48 8b 83 68 05 00 00 65 ff 08 e9 54 [ 69.240278][ T6888] RSP: 0018:ffffc90005707c90 EFLAGS: 00010202 [ 69.246331][ T6888] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff815b9de2 [ 69.254339][ T6888] RDX: 00000000000000ad RSI: ffffffff882d2317 RDI: 0000000000000568 [ 69.262369][ T6888] RBP: ffff888091aae000 R08: 0000000000000001 R09: ffffffff8d0ffaaf [ 69.270397][ T6888] R10: fffffbfff1a1ff55 R11: 0000000000000000 R12: ffff888091aae5f8 [ 69.278383][ T6888] R13: ffff888091aae4c8 R14: dffffc0000000000 R15: 1ffff11012355cb5 [ 69.287476][ T6888] FS: 0000000000000000(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000 [ 69.296472][ T6888] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.303097][ T6888] CR2: 00000000004c8b88 CR3: 0000000093ea3000 CR4: 00000000001506f0 [ 69.311119][ T6888] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.319130][ T6888] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.327096][ T6888] Kernel panic - not syncing: Fatal exception [ 69.334389][ T6888] Kernel Offset: disabled [ 69.338721][ T6888] Rebooting in 86400 seconds..