Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.10' (ECDSA) to the list of known hosts. syzkaller login: [ 72.190756][ T8495] IPVS: ftp: loaded support on port[0] = 21 [ 72.294030][ T8495] chnl_net:caif_netlink_parms(): no params data found [ 72.352957][ T8495] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.365293][ T8495] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.374866][ T8495] device bridge_slave_0 entered promiscuous mode [ 72.386733][ T8495] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.394950][ T8495] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.404598][ T8495] device bridge_slave_1 entered promiscuous mode [ 72.426763][ T8495] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.443105][ T8495] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.468460][ T8495] team0: Port device team_slave_0 added [ 72.476962][ T8495] team0: Port device team_slave_1 added [ 72.497565][ T8495] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 72.505114][ T8495] 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. [ 72.533755][ T8495] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 72.547736][ T8495] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 72.555794][ T8495] 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. [ 72.583895][ T8495] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 72.613245][ T8495] device hsr_slave_0 entered promiscuous mode [ 72.621423][ T8495] device hsr_slave_1 entered promiscuous mode [ 72.736385][ T8495] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 72.748552][ T8495] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 72.761522][ T8495] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 72.772542][ T8495] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 72.800081][ T8495] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.809528][ T8495] bridge0: port 2(bridge_slave_1) entered forwarding state [ 72.817822][ T8495] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.826616][ T8495] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.880022][ T8495] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.895845][ T3004] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 72.912301][ T3004] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.923459][ T3004] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.934589][ T3004] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 72.951197][ T8495] 8021q: adding VLAN 0 to HW filter on device team0 [ 72.973181][ T3004] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 72.982841][ T3004] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.990323][ T3004] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.008838][ T3004] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.019489][ T3004] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.029491][ T3004] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.051043][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.060715][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.075573][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.097832][ T8495] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 73.111423][ T8495] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 73.126269][ T8701] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.136710][ T8701] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.145890][ T8701] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.167651][ T8701] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.177018][ T8701] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.192833][ T8495] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.214733][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.236865][ T8701] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.252478][ T8701] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.262930][ T8701] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.276501][ T8495] device veth0_vlan entered promiscuous mode [ 73.294694][ T8495] device veth1_vlan entered promiscuous mode [ 73.321786][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 73.331090][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 73.348610][ T8495] device veth0_macvtap entered promiscuous mode [ 73.360953][ T8495] device veth1_macvtap entered promiscuous mode [ 73.381362][ T8495] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 73.389540][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 73.397793][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 73.406253][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 73.416245][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 73.430915][ T8495] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 73.439292][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 73.448236][ T3926] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 73.463344][ T8495] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.473903][ T8495] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.483524][ T8495] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 73.493781][ T8495] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 73.568154][ T8703] FAULT_INJECTION: forcing a failure. [ 73.568154][ T8703] name failslab, interval 1, probability 0, space 0, times 1 [ 73.583434][ T8703] CPU: 0 PID: 8703 Comm: syz-executor857 Not tainted 5.11.0-rc3-syzkaller #0 [ 73.593039][ T8703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.603440][ T8703] Call Trace: [ 73.607015][ T8703] dump_stack+0x107/0x163 [ 73.611932][ T8703] should_fail.cold+0x5/0xa [ 73.616649][ T8703] should_failslab+0x5/0x10 [ 73.621287][ T8703] __kmalloc_node_track_caller+0x72/0x3f0 [ 73.627584][ T8703] ? __napi_alloc_skb+0x70/0x310 [ 73.632823][ T8703] ? kmem_cache_alloc_node+0x3b1/0x470 [ 73.639059][ T8703] __alloc_skb+0xae/0x5a0 [ 73.644097][ T8703] __napi_alloc_skb+0x70/0x310 [ 73.649496][ T8703] napi_get_frags+0x5e/0x140 [ 73.654397][ T8703] tun_get_user+0x9f9/0x3690 [ 73.659471][ T8703] ? tun_build_skb+0xf60/0xf60 [ 73.664791][ T8703] ? ab_transmit+0x1d0/0x250 [ 73.669409][ T8703] ? lock_downgrade+0x6d0/0x6d0 [ 73.674287][ T8703] ? aa_file_perm+0x5e2/0x1100 [ 73.679191][ T8703] tun_chr_write_iter+0xe1/0x1d0 [ 73.684787][ T8703] new_sync_write+0x426/0x650 [ 73.690042][ T8703] ? new_sync_read+0x6e0/0x6e0 [ 73.695605][ T8703] ? find_held_lock+0x2d/0x110 [ 73.700540][ T8703] ? apparmor_file_permission+0x26e/0x4e0 [ 73.706665][ T8703] vfs_write+0x791/0xa30 [ 73.711316][ T8703] ksys_write+0x12d/0x250 [ 73.716117][ T8703] ? __ia32_sys_read+0xb0/0xb0 [ 73.721310][ T8703] ? syscall_enter_from_user_mode+0x1d/0x50 [ 73.727250][ T8703] do_syscall_64+0x2d/0x70 [ 73.731727][ T8703] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 73.738229][ T8703] RIP: 0033:0x4440a9 [ 73.742238][ T8703] Code: e8 6c 05 03 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 9b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 73.762423][ T8703] RSP: 002b:00007fffdb5a8e08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 73.771172][ T8703] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004440a9 [ 73.779832][ T8703] RDX: 000000002001016f RSI: 0000000020000380 RDI: 0000000000000003 [ 73.788112][ T8703] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000001bbbbbb [ 73.796535][ T8703] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 73.805475][ T8703] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 73.831247][ T8703] ------------[ cut here ]------------ [ 73.837317][ T8703] WARNING: CPU: 1 PID: 8703 at mm/page_alloc.c:4976 __alloc_pages_nodemask+0x5f8/0x730 [ 73.847729][ T8703] Modules linked in: [ 73.852849][ T8703] CPU: 1 PID: 8703 Comm: syz-executor857 Not tainted 5.11.0-rc3-syzkaller #0 [ 73.862147][ T8703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.873265][ T8703] RIP: 0010:__alloc_pages_nodemask+0x5f8/0x730 [ 73.879571][ T8703] Code: 00 00 0c 00 0f 85 a7 00 00 00 8b 3c 24 4c 89 f2 44 89 e6 c6 44 24 70 00 48 89 6c 24 58 e8 d0 d7 ff ff 49 89 c5 e9 ea fc ff ff <0f> 0b e9 b5 fd ff ff 89 74 24 14 4c 89 4c 24 08 4c 89 74 24 18 e8 [ 73.901595][ T8703] RSP: 0018:ffffc90001ecf910 EFLAGS: 00010246 [ 73.908277][ T8703] RAX: 0000000000000000 RBX: 1ffff920003d9f26 RCX: 0000000000000000 [ 73.917796][ T8703] RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000060a20 [ 73.926715][ T8703] RBP: 0000000000020a20 R08: 0000000000000000 R09: 0000000000000001 [ 73.935373][ T8703] R10: ffffffff86f1be3c R11: 0000000000000000 R12: 0000000000000012 [ 73.944189][ T8703] R13: 0000000020010300 R14: 0000000000060a20 R15: 0000000000000000 [ 73.952958][ T8703] FS: 0000000001148880(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 [ 73.962659][ T8703] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.969974][ T8703] CR2: 00000000006d5090 CR3: 000000001d414000 CR4: 00000000001506e0 [ 73.978133][ T8703] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.987204][ T8703] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.995674][ T8703] Call Trace: [ 73.999746][ T8703] ? lockdep_hardirqs_on+0x79/0x100 [ 74.005108][ T8703] ? __alloc_pages_slowpath.constprop.0+0x2240/0x2240 [ 74.012359][ T8703] ? finish_task_switch.isra.0+0x158/0x7e0 [ 74.018927][ T8703] ? finish_task_switch.isra.0+0x122/0x7e0 [ 74.026778][ T8703] ? __switch_to+0x57c/0x1050 [ 74.032156][ T8703] ? __schedule+0x914/0x21a0 [ 74.036788][ T8703] kmalloc_large_node+0x60/0x110 [ 74.042155][ T8703] __kmalloc_node_track_caller+0x319/0x3f0 [ 74.048264][ T8703] ? tun_get_user+0x1f52/0x3690 [ 74.054823][ T8703] pskb_expand_head+0xae9/0x1050 [ 74.062105][ T8703] ? mark_lock+0xf7/0x1720 [ 74.066643][ T8703] tun_get_user+0x1f52/0x3690 [ 74.071941][ T8703] ? tun_build_skb+0xf60/0xf60 [ 74.076847][ T8703] ? ab_transmit+0x1d0/0x250 [ 74.082601][ T8703] ? lock_downgrade+0x6d0/0x6d0 [ 74.087499][ T8703] ? aa_file_perm+0x5e2/0x1100 [ 74.092394][ T8703] tun_chr_write_iter+0xe1/0x1d0 [ 74.097391][ T8703] new_sync_write+0x426/0x650 [ 74.102499][ T8703] ? new_sync_read+0x6e0/0x6e0 [ 74.108116][ T8703] ? find_held_lock+0x2d/0x110 [ 74.113277][ T8703] ? apparmor_file_permission+0x26e/0x4e0 [ 74.119994][ T8703] vfs_write+0x791/0xa30 [ 74.124892][ T8703] ksys_write+0x12d/0x250 [ 74.129748][ T8703] ? __ia32_sys_read+0xb0/0xb0 [ 74.135009][ T8703] ? syscall_enter_from_user_mode+0x1d/0x50 [ 74.142688][ T8703] do_syscall_64+0x2d/0x70 [ 74.147177][ T8703] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 74.153463][ T8703] RIP: 0033:0x4440a9 [ 74.157817][ T8703] Code: e8 6c 05 03 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 9b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 74.180745][ T8703] RSP: 002b:00007fffdb5a8e08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 74.189657][ T8703] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004440a9 [ 74.198083][ T8703] RDX: 000000002001016f RSI: 0000000020000380 RDI: 0000000000000003 [ 74.206592][ T8703] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000001bbbbbb [ 74.215027][ T8703] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 74.224647][ T8703] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 74.234010][ T8703] Kernel panic - not syncing: panic_on_warn set ... [ 74.240795][ T8703] CPU: 1 PID: 8703 Comm: syz-executor857 Not tainted 5.11.0-rc3-syzkaller #0 [ 74.250944][ T8703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.264794][ T8703] Call Trace: [ 74.268286][ T8703] dump_stack+0x107/0x163 [ 74.272755][ T8703] panic+0x306/0x73d [ 74.278722][ T8703] ? __warn_printk+0xf3/0xf3 [ 74.284794][ T8703] ? __warn.cold+0x1a/0x44 [ 74.289999][ T8703] ? __alloc_pages_nodemask+0x5f8/0x730 [ 74.296089][ T8703] __warn.cold+0x35/0x44 [ 74.301029][ T8703] ? __alloc_pages_nodemask+0x5f8/0x730 [ 74.307869][ T8703] report_bug+0x1bd/0x210 [ 74.312564][ T8703] handle_bug+0x3c/0x60 [ 74.320184][ T8703] exc_invalid_op+0x14/0x40 [ 74.325017][ T8703] asm_exc_invalid_op+0x12/0x20 [ 74.330108][ T8703] RIP: 0010:__alloc_pages_nodemask+0x5f8/0x730 [ 74.336715][ T8703] Code: 00 00 0c 00 0f 85 a7 00 00 00 8b 3c 24 4c 89 f2 44 89 e6 c6 44 24 70 00 48 89 6c 24 58 e8 d0 d7 ff ff 49 89 c5 e9 ea fc ff ff <0f> 0b e9 b5 fd ff ff 89 74 24 14 4c 89 4c 24 08 4c 89 74 24 18 e8 [ 74.357169][ T8703] RSP: 0018:ffffc90001ecf910 EFLAGS: 00010246 [ 74.363857][ T8703] RAX: 0000000000000000 RBX: 1ffff920003d9f26 RCX: 0000000000000000 [ 74.372241][ T8703] RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000060a20 [ 74.380323][ T8703] RBP: 0000000000020a20 R08: 0000000000000000 R09: 0000000000000001 [ 74.388332][ T8703] R10: ffffffff86f1be3c R11: 0000000000000000 R12: 0000000000000012 [ 74.396678][ T8703] R13: 0000000020010300 R14: 0000000000060a20 R15: 0000000000000000 [ 74.405581][ T8703] ? pskb_expand_head+0xabc/0x1050 [ 74.410803][ T8703] ? lockdep_hardirqs_on+0x79/0x100 [ 74.416568][ T8703] ? __alloc_pages_slowpath.constprop.0+0x2240/0x2240 [ 74.424031][ T8703] ? finish_task_switch.isra.0+0x158/0x7e0 [ 74.430186][ T8703] ? finish_task_switch.isra.0+0x122/0x7e0 [ 74.436465][ T8703] ? __switch_to+0x57c/0x1050 [ 74.441265][ T8703] ? __schedule+0x914/0x21a0 [ 74.446600][ T8703] kmalloc_large_node+0x60/0x110 [ 74.453190][ T8703] __kmalloc_node_track_caller+0x319/0x3f0 [ 74.459421][ T8703] ? tun_get_user+0x1f52/0x3690 [ 74.464507][ T8703] pskb_expand_head+0xae9/0x1050 [ 74.469770][ T8703] ? mark_lock+0xf7/0x1720 [ 74.474244][ T8703] tun_get_user+0x1f52/0x3690 [ 74.479266][ T8703] ? tun_build_skb+0xf60/0xf60 [ 74.484994][ T8703] ? ab_transmit+0x1d0/0x250 [ 74.490946][ T8703] ? lock_downgrade+0x6d0/0x6d0 [ 74.498352][ T8703] ? aa_file_perm+0x5e2/0x1100 [ 74.503744][ T8703] tun_chr_write_iter+0xe1/0x1d0 [ 74.509068][ T8703] new_sync_write+0x426/0x650 [ 74.514156][ T8703] ? new_sync_read+0x6e0/0x6e0 [ 74.519402][ T8703] ? find_held_lock+0x2d/0x110 [ 74.524372][ T8703] ? apparmor_file_permission+0x26e/0x4e0 [ 74.530600][ T8703] vfs_write+0x791/0xa30 [ 74.534870][ T8703] ksys_write+0x12d/0x250 [ 74.539495][ T8703] ? __ia32_sys_read+0xb0/0xb0 [ 74.544763][ T8703] ? syscall_enter_from_user_mode+0x1d/0x50 [ 74.550785][ T8703] do_syscall_64+0x2d/0x70 [ 74.556090][ T8703] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 74.562257][ T8703] RIP: 0033:0x4440a9 [ 74.566175][ T8703] Code: e8 6c 05 03 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 9b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 74.586792][ T8703] RSP: 002b:00007fffdb5a8e08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 74.595956][ T8703] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004440a9 [ 74.604731][ T8703] RDX: 000000002001016f RSI: 0000000020000380 RDI: 0000000000000003 [ 74.613220][ T8703] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000001bbbbbb [ 74.622422][ T8703] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 74.630959][ T8703] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 74.640995][ T8703] Kernel Offset: disabled [ 74.645781][ T8703] Rebooting in 86400 seconds..