Warning: Permanently added '10.128.10.1' (ED25519) to the list of known hosts. 2026/11/03 05:16:43 parsed 1 programs Setting up swapspace version 1, size = 127995904 bytes [ 42.398556][ T3079] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 43.565097][ T86] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 43.572612][ T86] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 43.605920][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 43.614833][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 43.625872][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 43.636541][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 43.873037][ T86] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 43.884016][ T3136] device veth0_vlan entered promiscuous mode [ 43.890486][ T86] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 43.899442][ T86] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 43.906892][ T86] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 44.028765][ T86] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 44.093953][ T76] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 44.103518][ T76] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/11/03 05:16:45 executed programs: 0 [ 44.456646][ T9] device veth0_vlan left promiscuous mode [ 44.996558][ T76] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.033085][ T86] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 45.043515][ T86] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 45.054846][ T86] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 45.063635][ T86] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 45.291162][ T76] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 45.299529][ T76] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 45.309936][ T76] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 45.318723][ T76] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 45.327149][ T76] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 45.334522][ T76] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 45.342555][ T3363] device veth0_vlan entered promiscuous mode [ 45.462905][ T76] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 45.471206][ T76] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 45.534482][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 45.542799][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 45.551850][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 45.560132][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/11/03 05:16:50 executed programs: 70 2026/11/03 05:16:55 executed programs: 159 [ 58.176653][ T4211] [ 58.179042][ T4211] ============================================ [ 58.185173][ T4211] WARNING: possible recursive locking detected [ 58.191319][ T4211] syzkaller #0 Not tainted [ 58.196585][ T4211] -------------------------------------------- [ 58.202802][ T4211] syz.2.238/4211 is trying to acquire lock: [ 58.208690][ T4211] ffffffff83a7d658 (qp_broker_list.mutex){+.+.}-{3:3}, at: vmci_qp_broker_detach+0x4b/0x430 [ 58.219040][ T4211] [ 58.219040][ T4211] but task is already holding lock: [ 58.226498][ T4211] ffffffff83a7d658 (qp_broker_list.mutex){+.+.}-{3:3}, at: vmci_qp_broker_detach+0x4b/0x430 [ 58.236737][ T4211] [ 58.236737][ T4211] other info that might help us debug this: [ 58.244962][ T4211] Possible unsafe locking scenario: [ 58.244962][ T4211] [ 58.252509][ T4211] CPU0 [ 58.255778][ T4211] ---- [ 58.259129][ T4211] lock(qp_broker_list.mutex); [ 58.263974][ T4211] lock(qp_broker_list.mutex); [ 58.268915][ T4211] [ 58.268915][ T4211] *** DEADLOCK *** [ 58.268915][ T4211] [ 58.277050][ T4211] May be due to missing lock nesting notation [ 58.277050][ T4211] [ 58.285458][ T4211] 1 lock held by syz.2.238/4211: [ 58.290381][ T4211] #0: ffffffff83a7d658 (qp_broker_list.mutex){+.+.}-{3:3}, at: vmci_qp_broker_detach+0x4b/0x430 [ 58.300870][ T4211] [ 58.300870][ T4211] stack backtrace: [ 58.306762][ T4211] CPU: 0 PID: 4211 Comm: syz.2.238 Not tainted syzkaller #0 [ 58.314264][ T4211] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 [ 58.324580][ T4211] Call Trace: [ 58.329119][ T4211] [ 58.332208][ T4211] dump_stack_lvl+0x57/0x7d [ 58.336757][ T4211] __lock_acquire+0xff2/0x1be0 [ 58.341668][ T4211] lock_acquire+0xbd/0x2a0 [ 58.346078][ T4211] ? vmci_qp_broker_detach+0x4b/0x430 [ 58.351462][ T4211] ? __lock_acquire+0x412/0x1be0 [ 58.356408][ T4211] __mutex_lock+0x6c/0x680 [ 58.360814][ T4211] ? vmci_qp_broker_detach+0x4b/0x430 [ 58.366165][ T4211] ? vmci_qp_broker_detach+0x4b/0x430 [ 58.371608][ T4211] ? lock_acquire+0xbd/0x2a0 [ 58.376198][ T4211] ? ctx_free_ctx+0x4c/0x3e0 [ 58.381019][ T4211] vmci_qp_broker_detach+0x4b/0x430 [ 58.386553][ T4211] ? kfree+0xe6/0x470 [ 58.390606][ T4211] ctx_free_ctx+0x1ad/0x3e0 [ 58.395271][ T4211] vmci_ctx_enqueue_datagram+0x15c/0x1a0 [ 58.400888][ T4211] vmci_datagram_dispatch+0x137/0x390 [ 58.406364][ T4211] qp_notify_peer+0x7f/0xf0 [ 58.411005][ T4211] vmci_qp_broker_detach+0x29f/0x430 [ 58.416323][ T4211] ctx_free_ctx+0x1ad/0x3e0 [ 58.420815][ T4211] vmci_host_close+0x3a/0x50 [ 58.425389][ T4211] __fput+0x8f/0x250 [ 58.429318][ T4211] task_work_run+0x54/0x80 [ 58.433718][ T4211] exit_to_user_mode_prepare+0x1fb/0x200 [ 58.439333][ T4211] syscall_exit_to_user_mode+0x19/0x60 [ 58.444776][ T4211] do_syscall_64+0x40/0x90 [ 58.449186][ T4211] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 58.455163][ T4211] RIP: 0033:0x7fbfc7ea9e59 [ 58.459690][ T4211] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 58.479523][ T4211] RSP: 002b:00007fbfc7ceb028 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 58.488025][ T4211] RAX: 0000000000000000 RBX: 00007fbfc8123090 RCX: 00007fbfc7ea9e59 [ 58.495998][ T4211] RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000000000007 [ 58.503958][ T4211] RBP: 00007fbfc7f3fd6f R08: 0000000000000000 R09: 0000000000000000 [ 58.512083][ T4211] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 58.520147][ T4211] R13: 00007fbfc8123128 R14: 00007fbfc8123090 R15: 00007ffcbabc8798 [ 58.528114][ T4211]