Warning: Permanently added '10.128.1.93' (ECDSA) to the list of known hosts. syzkaller login: [ 40.324974][ T3593] chnl_net:caif_netlink_parms(): no params data found [ 40.360716][ T3593] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.368176][ T3593] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.376167][ T3593] device bridge_slave_0 entered promiscuous mode [ 40.384373][ T3593] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.391660][ T3593] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.399293][ T3593] device bridge_slave_1 entered promiscuous mode [ 40.416676][ T3593] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 40.427323][ T3593] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 40.446976][ T3593] team0: Port device team_slave_0 added [ 40.454033][ T3593] team0: Port device team_slave_1 added [ 40.469092][ T3593] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 40.476090][ T3593] 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. [ 40.502222][ T3593] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 40.514151][ T3593] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 40.521106][ T3593] 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. [ 40.547107][ T3593] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 40.570395][ T3593] device hsr_slave_0 entered promiscuous mode [ 40.577245][ T3593] device hsr_slave_1 entered promiscuous mode [ 40.645267][ T3593] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 40.656117][ T3593] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 40.664545][ T3593] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 40.673165][ T3593] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 40.692352][ T3593] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.699513][ T3593] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.707520][ T3593] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.714572][ T3593] bridge0: port 1(bridge_slave_0) entered forwarding state [ 40.751934][ T3593] 8021q: adding VLAN 0 to HW filter on device bond0 [ 40.763032][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 40.772602][ T6] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.780847][ T6] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.789018][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 40.800634][ T3593] 8021q: adding VLAN 0 to HW filter on device team0 [ 40.810588][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 40.819729][ T6] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.827388][ T6] bridge0: port 1(bridge_slave_0) entered forwarding state [ 40.840582][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 40.849024][ T142] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.856111][ T142] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.876414][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 40.884943][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 40.893483][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 40.901604][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 40.911515][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 40.920985][ T3593] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 40.936290][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 40.944060][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 40.956256][ T3593] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 41.044322][ T3593] device veth0_vlan entered promiscuous mode [ 41.054010][ T3600] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 41.063556][ T3600] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 41.072000][ T3600] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 41.079618][ T3600] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 41.090092][ T3593] device veth1_vlan entered promiscuous mode [ 41.105376][ T3600] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 41.113197][ T3600] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 41.121896][ T3600] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 41.130737][ T3593] device veth0_macvtap entered promiscuous mode [ 41.140538][ T3593] device veth1_macvtap entered promiscuous mode [ 41.153496][ T3593] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 41.162622][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 41.172338][ T142] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 41.183197][ T3593] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 41.190564][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 41.201032][ T3593] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 41.210047][ T3593] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 41.218981][ T3593] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 41.227842][ T3593] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 41.273794][ T957] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 41.284577][ T957] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 41.294196][ T3600] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 41.303864][ T957] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 41.312749][ T957] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 41.321630][ T3601] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 41.333085][ T3593] [ 41.335400][ T3593] ============================================ [ 41.341631][ T3593] WARNING: possible recursive locking detected [ 41.348010][ T3593] 5.17.0-syzkaller-14079-gbe2d3ecedd99 #0 Not tainted [ 41.354906][ T3593] -------------------------------------------- [ 41.361023][ T3593] syz-executor413/3593 is trying to acquire lock: [ 41.367408][ T3593] ffff88801a8c2458 (_xmit_ETHER#2){+.-.}-{2:2}, at: sch_direct_xmit+0x318/0xbe0 [ 41.376741][ T3593] [ 41.376741][ T3593] but task is already holding lock: [ 41.384316][ T3593] ffff88807db104d8 (_xmit_ETHER#2){+.-.}-{2:2}, at: sch_direct_xmit+0x318/0xbe0 [ 41.393352][ T3593] [ 41.393352][ T3593] other info that might help us debug this: [ 41.401505][ T3593] Possible unsafe locking scenario: [ 41.401505][ T3593] [ 41.408922][ T3593] CPU0 [ 41.412173][ T3593] ---- [ 41.415425][ T3593] lock(_xmit_ETHER#2); [ 41.419640][ T3593] lock(_xmit_ETHER#2); [ 41.423853][ T3593] [ 41.423853][ T3593] *** DEADLOCK *** [ 41.423853][ T3593] [ 41.431966][ T3593] May be due to missing lock nesting notation [ 41.431966][ T3593] [ 41.440359][ T3593] 7 locks held by syz-executor413/3593: [ 41.445876][ T3593] #0: ffffffff8bd81d80 (rcu_read_lock_bh){....}-{1:2}, at: ip_finish_output2+0x292/0x2170 [ 41.455855][ T3593] #1: ffffffff8bd81d80 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x1e3/0x39c0 [ 41.465739][ T3593] #2: ffff88801f3fc258 (dev->qdisc_tx_busylock ?: &qdisc_tx_busylock){+...}-{2:2}, at: __dev_queue_xmit+0x130e/0x39c0 [ 41.478145][ T3593] #3: ffff88807db104d8 (_xmit_ETHER#2){+.-.}-{2:2}, at: sch_direct_xmit+0x318/0xbe0 [ 41.487616][ T3593] #4: ffffffff8bd81d80 (rcu_read_lock_bh){....}-{1:2}, at: ip_finish_output2+0x292/0x2170 [ 41.497592][ T3593] #5: ffffffff8bd81d80 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x1e3/0x39c0 [ 41.507492][ T3593] #6: ffff88801f857258 (dev->qdisc_tx_busylock ?: &qdisc_tx_busylock){+...}-{2:2}, at: __dev_queue_xmit+0x130e/0x39c0 [ 41.519903][ T3593] [ 41.519903][ T3593] stack backtrace: [ 41.525767][ T3593] CPU: 1 PID: 3593 Comm: syz-executor413 Not tainted 5.17.0-syzkaller-14079-gbe2d3ecedd99 #0 [ 41.535895][ T3593] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.546121][ T3593] Call Trace: [ 41.549376][ T3593] [ 41.552298][ T3593] dump_stack_lvl+0xcd/0x134 [ 41.556869][ T3593] __lock_acquire.cold+0x12c/0x3a7 [ 41.561965][ T3593] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 41.567923][ T3593] ? skb_checksum+0x90/0xc0 [ 41.572407][ T3593] ? __skb_checksum+0x890/0x890 [ 41.577232][ T3593] ? csum_block_add_ext+0x40/0x40 [ 41.582236][ T3593] ? reqsk_fastopen_remove+0x620/0x620 [ 41.587671][ T3593] lock_acquire+0x1ab/0x510 [ 41.592168][ T3593] ? sch_direct_xmit+0x318/0xbe0 [ 41.597081][ T3593] ? lock_release+0x720/0x720 [ 41.601738][ T3593] ? validate_xmit_skb+0x8fb/0xfa0 [ 41.607105][ T3593] _raw_spin_lock+0x2a/0x40 [ 41.611605][ T3593] ? sch_direct_xmit+0x318/0xbe0 [ 41.616519][ T3593] sch_direct_xmit+0x318/0xbe0 [ 41.621280][ T3593] ? dev_watchdog+0x8f0/0x8f0 [ 41.625934][ T3593] ? do_raw_spin_trylock+0xb0/0x180 [ 41.631117][ T3593] ? do_raw_spin_lock+0x200/0x2a0 [ 41.636119][ T3593] __dev_queue_xmit+0x153b/0x39c0 [ 41.641121][ T3593] ? lock_chain_count+0x20/0x20 [ 41.645951][ T3593] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 41.651220][ T3593] ? find_held_lock+0x2d/0x110 [ 41.655961][ T3593] ? ip_finish_output2+0x782/0x2170 [ 41.661134][ T3593] ? mark_held_locks+0x9f/0xe0 [ 41.665872][ T3593] ? memcpy+0x39/0x60 [ 41.669830][ T3593] neigh_resolve_output+0x50e/0x830 [ 41.675022][ T3593] ip_finish_output2+0x782/0x2170 [ 41.680046][ T3593] ? nf_hook+0x20d/0x5b0 [ 41.684286][ T3593] ? ip_fragment.constprop.0+0x240/0x240 [ 41.689908][ T3593] ? ip_mc_finish_output+0x5a0/0x5a0 [ 41.695172][ T3593] __ip_finish_output+0x396/0x650 [ 41.700186][ T3593] ip_finish_output+0x32/0x280 [ 41.704926][ T3593] ip_output+0x196/0x310 [ 41.709146][ T3593] ip_local_out+0xaf/0x1a0 [ 41.713561][ T3593] iptunnel_xmit+0x68c/0xa50 [ 41.718133][ T3593] ip_tunnel_xmit+0x10a8/0x2b70 [ 41.723048][ T3593] ? ip_md_tunnel_xmit+0x1520/0x1520 [ 41.728312][ T3593] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 41.734273][ T3593] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 41.740495][ T3593] ? __gre_xmit+0x535/0x970 [ 41.744973][ T3593] erspan_xmit+0x7ec/0x29c0 [ 41.749473][ T3593] dev_hard_start_xmit+0x1eb/0x920 [ 41.754763][ T3593] sch_direct_xmit+0x19f/0xbe0 [ 41.759695][ T3593] ? lock_release+0x720/0x720 [ 41.764424][ T3593] ? dev_watchdog+0x8f0/0x8f0 [ 41.769194][ T3593] ? do_raw_spin_trylock+0xb0/0x180 [ 41.774372][ T3593] ? do_raw_spin_lock+0x200/0x2a0 [ 41.779373][ T3593] __dev_queue_xmit+0x153b/0x39c0 [ 41.784380][ T3593] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 41.789730][ T3593] ? find_held_lock+0x2d/0x110 [ 41.794479][ T3593] ? ip_finish_output2+0x782/0x2170 [ 41.799651][ T3593] ? lock_downgrade+0x6e0/0x6e0 [ 41.804477][ T3593] ? do_raw_write_lock+0x11a/0x280 [ 41.809579][ T3593] ? memcpy+0x39/0x60 [ 41.815276][ T3593] neigh_resolve_output+0x50e/0x830 [ 41.820457][ T3593] ip_finish_output2+0x782/0x2170 [ 41.825483][ T3593] ? nf_hook+0x20d/0x5b0 [ 41.829702][ T3593] ? ip_fragment.constprop.0+0x240/0x240 [ 41.835309][ T3593] ? ip_mc_finish_output+0x5a0/0x5a0 [ 41.840583][ T3593] __ip_finish_output+0x396/0x650 [ 41.845673][ T3593] ip_finish_output+0x32/0x280 [ 41.850501][ T3593] ip_output+0x196/0x310 [ 41.854718][ T3593] ip_send_skb+0xd4/0x260 [ 41.859020][ T3593] udp_send_skb+0x6d2/0x11b0 [ 41.863586][ T3593] udp_sendmsg+0x1bae/0x2730 [ 41.868149][ T3593] ? ip_setup_cork+0x970/0x970 [ 41.872889][ T3593] ? udp_unicast_rcv_skb+0x330/0x330 [ 41.878235][ T3593] ? lock_chain_count+0x20/0x20 [ 41.883074][ T3593] ? lock_chain_count+0x20/0x20 [ 41.888003][ T3593] ? __lock_acquire+0x163e/0x56c0 [ 41.893003][ T3593] udpv6_sendmsg+0x1747/0x2c30 [ 41.897751][ T3593] ? udp_v6_push_pending_frames+0x200/0x200 [ 41.903709][ T3593] ? find_held_lock+0x2d/0x110 [ 41.908449][ T3593] ? aa_sk_perm+0x30f/0xaa0 [ 41.912944][ T3593] ? aa_af_perm+0x230/0x230 [ 41.917439][ T3593] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 41.923676][ T3593] ? inet6_sendmsg+0x4a/0xe0 [ 41.928415][ T3593] inet6_sendmsg+0x99/0xe0 [ 41.932807][ T3593] ? inet6_compat_ioctl+0x310/0x310 [ 41.937977][ T3593] sock_sendmsg+0xcf/0x120 [ 41.942371][ T3593] ____sys_sendmsg+0x32b/0x800 [ 41.947672][ T3593] ? kernel_sendmsg+0x50/0x50 [ 41.952340][ T3593] ? do_recvmmsg+0x6d0/0x6d0 [ 41.957084][ T3593] ? lock_downgrade+0x6e0/0x6e0 [ 41.961910][ T3593] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 41.968122][ T3593] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 41.974093][ T3593] ? __lock_acquire+0x163e/0x56c0 [ 41.979091][ T3593] ___sys_sendmsg+0xf3/0x170 [ 41.983655][ T3593] ? sendmsg_copy_msghdr+0x160/0x160 [ 41.988911][ T3593] ? mark_lock.part.0+0xee/0x1910 [ 41.993910][ T3593] ? lock_chain_count+0x20/0x20 [ 41.998739][ T3593] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 42.004711][ T3593] ? lock_chain_count+0x20/0x20 [ 42.009538][ T3593] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 42.015668][ T3593] ? mark_held_locks+0x9f/0xe0 [ 42.020405][ T3593] ? release_sock+0x1b/0x1b0 [ 42.024966][ T3593] ? reacquire_held_locks+0x214/0x4e0 [ 42.030309][ T3593] ? release_sock+0x1b/0x1b0 [ 42.034877][ T3593] ? __lock_acquire+0x163e/0x56c0 [ 42.039961][ T3593] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 42.046181][ T3593] ? __fget_light+0x20f/0x270 [ 42.050837][ T3593] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 42.057054][ T3593] __sys_sendmmsg+0x195/0x470 [ 42.061710][ T3593] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 42.066710][ T3593] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 42.072685][ T3593] ? __context_tracking_exit+0xb8/0xe0 [ 42.078123][ T3593] ? lock_downgrade+0x6e0/0x6e0 [ 42.082968][ T3593] ? lock_downgrade+0x6e0/0x6e0 [ 42.087796][ T3593] __x64_sys_sendmmsg+0x99/0x100 [ 42.092707][ T3593] ? syscall_enter_from_user_mode+0x21/0x70 [ 42.099109][ T3593] do_syscall_64+0x35/0x80 [ 42.103502][ T3593] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 42.109390][ T3593] RIP: 0033:0x7f8b1bba3b39 [ 42.113779][ T3593] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 00 00 90 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 42.134006][ T3593] RSP: 002b:00007ffe629d4158 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 42.142599][ T3593] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8b1bba3b39 [ 42.150722][ T3593] RDX: 0000000000000001 RSI: 0000000020004d80 RDI: 0000000000000004 [ 42.158954][ T3593] RBP: 0000000000000003 R08: 0000000000000050 R09: 0000000000000050 [ 42.166902][ T3593] R10: 0000000004000000 R11: 0000000000000246 R12: 0000000000000031 [ 42.174848][ T3593] R13: 00007ff