Warning: Permanently added '10.128.1.104' (ED25519) to the list of known hosts. 2025/10/04 01:06:19 parsed 1 programs [ 132.625787][ T24] audit: type=1400 audit(1759539979.140:64): avc: denied { node_bind } for pid=275 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 132.646506][ T24] audit: type=1400 audit(1759539979.140:65): avc: denied { create } for pid=275 comm="syz-execprog" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=rawip_socket permissive=1 [ 132.666350][ T24] audit: type=1400 audit(1759539979.140:66): avc: denied { module_request } for pid=275 comm="syz-execprog" kmod="net-pf-2-proto-262-type-1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1 [ 133.558944][ T24] audit: type=1400 audit(1759539980.070:67): avc: denied { mounton } for pid=284 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2023 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 133.560329][ T284] cgroup: Unknown subsys name 'net' [ 133.581814][ T24] audit: type=1400 audit(1759539980.070:68): avc: denied { mount } for pid=284 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 133.609209][ T24] audit: type=1400 audit(1759539980.100:69): avc: denied { unmount } for pid=284 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 133.609646][ T284] cgroup: Unknown subsys name 'devices' [ 133.843449][ T284] cgroup: Unknown subsys name 'hugetlb' [ 133.849262][ T284] cgroup: Unknown subsys name 'rlimit' [ 133.998332][ T24] audit: type=1400 audit(1759539980.510:70): avc: denied { setattr } for pid=284 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=253 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 134.021833][ T24] audit: type=1400 audit(1759539980.510:71): avc: denied { create } for pid=284 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 134.042197][ T24] audit: type=1400 audit(1759539980.510:72): avc: denied { write } for pid=284 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 134.056756][ T286] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 134.062904][ T24] audit: type=1400 audit(1759539980.510:73): avc: denied { read } for pid=284 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 134.155095][ T284] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 134.632041][ T292] request_module fs-gadgetfs succeeded, but still no fs? [ 134.663172][ T292] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 135.238202][ T324] bridge0: port 1(bridge_slave_0) entered blocking state [ 135.247095][ T324] bridge0: port 1(bridge_slave_0) entered disabled state [ 135.255304][ T324] device bridge_slave_0 entered promiscuous mode [ 135.265986][ T324] bridge0: port 2(bridge_slave_1) entered blocking state [ 135.273082][ T324] bridge0: port 2(bridge_slave_1) entered disabled state [ 135.280424][ T324] device bridge_slave_1 entered promiscuous mode [ 135.357002][ T324] bridge0: port 2(bridge_slave_1) entered blocking state [ 135.364131][ T324] bridge0: port 2(bridge_slave_1) entered forwarding state [ 135.371455][ T324] bridge0: port 1(bridge_slave_0) entered blocking state [ 135.378491][ T324] bridge0: port 1(bridge_slave_0) entered forwarding state [ 135.400064][ T334] bridge0: port 1(bridge_slave_0) entered disabled state [ 135.407729][ T334] bridge0: port 2(bridge_slave_1) entered disabled state [ 135.416576][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 135.424319][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 135.443235][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 135.451939][ T334] bridge0: port 1(bridge_slave_0) entered blocking state [ 135.459000][ T334] bridge0: port 1(bridge_slave_0) entered forwarding state [ 135.466477][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 135.475631][ T334] bridge0: port 2(bridge_slave_1) entered blocking state [ 135.482732][ T334] bridge0: port 2(bridge_slave_1) entered forwarding state [ 135.490947][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 135.499160][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 135.524848][ T324] device veth0_vlan entered promiscuous mode [ 135.532276][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 135.540927][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 135.549485][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 135.557850][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 135.580645][ T324] device veth1_macvtap entered promiscuous mode [ 135.587796][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 135.599875][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready 2025/10/04 01:06:22 executed programs: 0 [ 135.626876][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 135.791155][ T360] bridge0: port 1(bridge_slave_0) entered blocking state [ 135.798372][ T360] bridge0: port 1(bridge_slave_0) entered disabled state [ 135.805946][ T360] device bridge_slave_0 entered promiscuous mode [ 135.824629][ T360] bridge0: port 2(bridge_slave_1) entered blocking state [ 135.831729][ T360] bridge0: port 2(bridge_slave_1) entered disabled state [ 135.839040][ T360] device bridge_slave_1 entered promiscuous mode [ 135.864570][ T361] bridge0: port 1(bridge_slave_0) entered blocking state [ 135.871723][ T361] bridge0: port 1(bridge_slave_0) entered disabled state [ 135.879216][ T361] device bridge_slave_0 entered promiscuous mode [ 135.892666][ T361] bridge0: port 2(bridge_slave_1) entered blocking state [ 135.899719][ T361] bridge0: port 2(bridge_slave_1) entered disabled state [ 135.907166][ T361] device bridge_slave_1 entered promiscuous mode [ 135.950455][ T363] bridge0: port 1(bridge_slave_0) entered blocking state [ 135.957921][ T363] bridge0: port 1(bridge_slave_0) entered disabled state [ 135.965564][ T363] device bridge_slave_0 entered promiscuous mode [ 135.972720][ T363] bridge0: port 2(bridge_slave_1) entered blocking state [ 135.979748][ T363] bridge0: port 2(bridge_slave_1) entered disabled state [ 135.987191][ T363] device bridge_slave_1 entered promiscuous mode [ 136.001279][ T358] bridge0: port 1(bridge_slave_0) entered blocking state [ 136.008394][ T358] bridge0: port 1(bridge_slave_0) entered disabled state [ 136.015813][ T358] device bridge_slave_0 entered promiscuous mode [ 136.025089][ T358] bridge0: port 2(bridge_slave_1) entered blocking state [ 136.032293][ T358] bridge0: port 2(bridge_slave_1) entered disabled state [ 136.039717][ T358] device bridge_slave_1 entered promiscuous mode [ 136.055045][ T362] bridge0: port 1(bridge_slave_0) entered blocking state [ 136.062115][ T362] bridge0: port 1(bridge_slave_0) entered disabled state [ 136.069500][ T362] device bridge_slave_0 entered promiscuous mode [ 136.078480][ T362] bridge0: port 2(bridge_slave_1) entered blocking state [ 136.085570][ T362] bridge0: port 2(bridge_slave_1) entered disabled state [ 136.093036][ T362] device bridge_slave_1 entered promiscuous mode [ 136.283892][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 136.291734][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 136.345185][ T358] device veth0_vlan entered promiscuous mode [ 136.351862][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 136.360310][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 136.370370][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 136.378457][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 136.386146][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 136.393757][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 136.401216][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 136.409903][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 136.418662][ T334] bridge0: port 1(bridge_slave_0) entered blocking state [ 136.425846][ T334] bridge0: port 1(bridge_slave_0) entered forwarding state [ 136.433571][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 136.442146][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 136.450285][ T334] bridge0: port 2(bridge_slave_1) entered blocking state [ 136.457358][ T334] bridge0: port 2(bridge_slave_1) entered forwarding state [ 136.464846][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 136.473430][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 136.481682][ T334] bridge0: port 1(bridge_slave_0) entered blocking state [ 136.488705][ T334] bridge0: port 1(bridge_slave_0) entered forwarding state [ 136.496097][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 136.504387][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 136.512590][ T334] bridge0: port 2(bridge_slave_1) entered blocking state [ 136.519626][ T334] bridge0: port 2(bridge_slave_1) entered forwarding state [ 136.527108][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 136.535106][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 136.542564][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 136.549930][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 136.558154][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 136.566296][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 136.574438][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 136.582712][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 136.590740][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 136.599305][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 136.607814][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 136.615490][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 136.632539][ T360] device veth0_vlan entered promiscuous mode [ 136.640752][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 136.648968][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 136.657096][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 136.666977][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 136.674587][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 136.682157][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 136.690473][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 136.699032][ T334] bridge0: port 1(bridge_slave_0) entered blocking state [ 136.706188][ T334] bridge0: port 1(bridge_slave_0) entered forwarding state [ 136.713813][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 136.722203][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 136.730421][ T334] bridge0: port 2(bridge_slave_1) entered blocking state [ 136.737486][ T334] bridge0: port 2(bridge_slave_1) entered forwarding state [ 136.744983][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 136.766067][ T358] device veth1_macvtap entered promiscuous mode [ 136.789899][ T360] device veth1_macvtap entered promiscuous mode [ 136.797320][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 136.806148][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 136.816673][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 136.824532][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 136.832322][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 136.840590][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 136.849034][ T334] bridge0: port 1(bridge_slave_0) entered blocking state [ 136.856095][ T334] bridge0: port 1(bridge_slave_0) entered forwarding state [ 136.863778][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 136.872149][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 136.880353][ T334] bridge0: port 2(bridge_slave_1) entered blocking state [ 136.887430][ T334] bridge0: port 2(bridge_slave_1) entered forwarding state [ 136.894848][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 136.903385][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 136.911809][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 136.920122][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 136.928672][ T334] bridge0: port 1(bridge_slave_0) entered blocking state [ 136.935818][ T334] bridge0: port 1(bridge_slave_0) entered forwarding state [ 136.943726][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 136.952087][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 136.960423][ T334] bridge0: port 2(bridge_slave_1) entered blocking state [ 136.967645][ T334] bridge0: port 2(bridge_slave_1) entered forwarding state [ 136.975342][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 136.983866][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 136.992309][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 137.000544][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 137.009027][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 137.017391][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 137.025151][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 137.033485][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 137.041736][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 137.054935][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 137.088074][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 137.097234][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 137.106428][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 137.115169][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 137.123934][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 137.132662][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 137.140934][ T334] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 138.172560][ T49] device bridge_slave_1 left promiscuous mode [ 138.178848][ T49] bridge0: port 2(bridge_slave_1) entered disabled state [ 138.381622][ T49] device bridge_slave_0 left promiscuous mode [ 138.387804][ T49] bridge0: port 1(bridge_slave_0) entered disabled state [ 138.641490][ T49] device veth1_macvtap left promiscuous mode [ 138.647806][ T49] device veth0_vlan left promiscuous mode [ 265.051717][ T26] INFO: task kworker/u4:2:49 blocked for more than 122 seconds. [ 265.059402][ T26] Not tainted syzkaller #0 [ 265.241334][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 265.250052][ T26] task:kworker/u4:2 state:D stack: 0 pid: 49 ppid: 2 flags:0x10004000 [ 265.701366][ T26] Workqueue: netns cleanup_net [ 265.706184][ T26] Call Trace: [ 265.709487][ T26] __schedule+0xb47/0x1310 [ 266.041375][ T26] ? release_firmware_map_entry+0x190/0x190 [ 266.047326][ T26] ? kthread_data+0x50/0xc0 [ 266.311355][ T26] ? wq_worker_sleeping+0x60/0x200 [ 266.316523][ T26] schedule+0x13c/0x1d0 [ 266.320709][ T26] schedule_timeout+0xa6/0x2d0 [ 266.681377][ T26] ? console_conditional_schedule+0x10/0x10 [ 266.687424][ T26] ? __prepare_to_swait+0xa8/0x130 [ 266.981800][ T26] wait_for_common+0x284/0x430 [ 266.986613][ T26] ? __kasan_check_write+0x14/0x20 [ 267.231362][ T26] ? wait_for_completion+0x20/0x20 [ 267.236526][ T26] ? mutex_lock+0x8c/0xe0 [ 267.240873][ T26] ? flush_workqueue_prep_pwqs+0x43c/0x4a0 [ 267.621370][ T26] wait_for_completion+0x18/0x20 [ 267.626398][ T26] flush_workqueue+0x606/0x13a0 [ 267.631260][ T26] ? flush_work+0x20/0x20 [ 268.001353][ T26] ? rcu_work_rcufn+0x50/0x50 [ 268.006090][ T26] peer_remove_after_dead+0x98/0x1a0 [ 268.271382][ T26] wg_peer_remove_all+0x3e2/0x450 [ 268.276465][ T26] ? peer_remove_after_dead+0x1a0/0x1a0 [ 268.551356][ T26] wg_destruct+0x18e/0x300 [ 268.555836][ T26] ? wg_xmit+0xb10/0xb10 [ 268.560094][ T26] netdev_run_todo+0xaf9/0xd20 [ 268.911358][ T26] ? netdev_refcnt_read+0x1d0/0x1d0 [ 268.916622][ T26] ? unregister_netdevice_queue+0x1aa/0x360 [ 269.201353][ T26] ? list_netdevice+0x4c0/0x4c0 [ 269.206265][ T26] rtnl_unlock+0xe/0x10 [ 269.210431][ T26] default_device_exit_batch+0x335/0x390 [ 269.581357][ T26] ? default_device_exit+0x390/0x390 [ 269.586698][ T26] ? wait_woken+0x180/0x180 [ 269.591211][ T26] ? rtnl_unlock+0xe/0x10 [ 269.951377][ T26] ? default_device_exit+0x390/0x390 [ 269.956725][ T26] cleanup_net+0x5fb/0xb70 [ 269.961153][ T26] ? __kasan_check_write+0x14/0x20 [ 270.341359][ T26] ? ops_init+0x4a0/0x4a0 [ 270.345832][ T26] ? read_word_at_a_time+0x12/0x20 [ 270.351158][ T26] ? strscpy+0x9b/0x290 [ 270.711346][ T26] process_one_work+0x6e1/0xba0 [ 270.716307][ T26] worker_thread+0xa6a/0x13b0 [ 270.720996][ T26] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 271.121412][ T26] ? __kasan_check_read+0x11/0x20 [ 271.126581][ T26] kthread+0x346/0x3d0 [ 271.130833][ T26] ? worker_clr_flags+0x190/0x190 [ 271.521401][ T26] ? kthread_blkcg+0xd0/0xd0 [ 271.526050][ T26] ret_from_fork+0x1f/0x30 [ 271.751363][ T26] INFO: task kworker/u4:4:334 blocked for more than 129 seconds. [ 271.759228][ T26] Not tainted syzkaller #0 [ 272.091359][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 272.100069][ T26] task:kworker/u4:4 state:D stack: 0 pid: 334 ppid: 2 flags:0x10004000 [ 272.551444][ T26] Workqueue: events_unbound linkwatch_event [ 272.557395][ T26] Call Trace: [ 272.560699][ T26] __schedule+0xb47/0x1310 [ 272.931369][ T26] ? release_firmware_map_entry+0x190/0x190 [ 272.937325][ T26] ? __mutex_add_waiter+0xc7/0x270 [ 273.231401][ T26] ? __kasan_check_write+0x14/0x20 [ 273.236749][ T26] ? kthread_data+0x50/0xc0 [ 273.481352][ T26] ? wq_worker_sleeping+0x60/0x200 [ 273.486525][ T26] schedule+0x13c/0x1d0 [ 273.490695][ T26] schedule_preempt_disabled+0x13/0x20 [ 273.871353][ T26] __mutex_lock+0x6c0/0xc50 [ 273.875928][ T26] ? __kasan_check_read+0x11/0x20 [ 273.880969][ T26] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20 [ 274.291357][ T26] ? _raw_spin_unlock_irq+0x4e/0x70 [ 274.296738][ T26] __mutex_lock_slowpath+0xe/0x10 [ 274.581373][ T26] mutex_lock+0xcf/0xe0 [ 274.585588][ T26] ? mutex_trylock+0xa0/0xa0 [ 274.590272][ T26] ? __schedule+0xb4f/0x1310 [ 274.951357][ T26] ? read_word_at_a_time+0x12/0x20 [ 274.956517][ T26] rtnl_lock+0x15/0x20 [ 274.960595][ T26] linkwatch_event+0xe/0x60 [ 275.296521][ T26] process_one_work+0x6e1/0xba0 [ 275.431378][ T26] worker_thread+0xa6a/0x13b0 [ 275.436227][ T26] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 275.701351][ T26] ? __kasan_check_read+0x11/0x20 [ 275.706426][ T26] kthread+0x346/0x3d0 [ 275.710595][ T26] ? worker_clr_flags+0x190/0x190 [ 276.071377][ T26] ? kthread_blkcg+0xd0/0xd0 [ 276.076015][ T26] ret_from_fork+0x1f/0x30 [ 276.321365][ T26] INFO: task syz-executor:360 blocked for more than 134 seconds. [ 276.329252][ T26] Not tainted syzkaller #0 [ 276.651330][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 276.660047][ T26] task:syz-executor state:D stack: 0 pid: 360 ppid: 348 flags:0x10004000 [ 277.131360][ T26] Call Trace: [ 277.134709][ T26] __schedule+0xb47/0x1310 [ 277.139134][ T26] ? release_firmware_map_entry+0x190/0x190 [ 277.491341][ T26] ? __mutex_add_waiter+0xc7/0x270 [ 277.496515][ T26] ? __kasan_check_write+0x14/0x20 [ 277.751369][ T26] ? atomic_dec_and_mutex_lock+0x190/0x190 [ 277.757232][ T26] schedule+0x13c/0x1d0 [ 278.041373][ T26] schedule_preempt_disabled+0x13/0x20 [ 278.046889][ T26] __mutex_lock+0x6c0/0xc50 [ 278.281370][ T26] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20 [ 278.288301][ T26] ? cap_capable+0x19c/0x220 [ 278.611352][ T26] __mutex_lock_slowpath+0xe/0x10 [ 278.616424][ T26] mutex_lock+0xcf/0xe0 [ 278.620621][ T26] ? mutex_trylock+0xa0/0xa0 [ 278.971377][ T26] ? ns_capable+0x8c/0xf0 [ 278.975790][ T26] ? netlink_net_capable+0x125/0x160 [ 278.981200][ T26] rtnetlink_rcv_msg+0x4b7/0xb90 [ 279.351354][ T26] ? rtnetlink_bind+0x80/0x80 [ 279.356092][ T26] ? arch_stack_walk+0xee/0x140 [ 279.360957][ T26] ? stack_trace_save+0x98/0xe0 [ 279.731357][ T26] ? stack_trace_snprint+0xf0/0xf0 [ 279.736531][ T26] ? memcpy+0x56/0x70 [ 279.740526][ T26] ? avc_has_perm+0x234/0x360 [ 280.061350][ T26] ? __kasan_slab_alloc+0xbd/0xf0 [ 280.066427][ T26] ? slab_post_alloc_hook+0x5d/0x2f0 [ 280.361384][ T26] ? __x64_sys_sendto+0xe5/0x100 [ 280.366379][ T26] ? avc_has_perm_noaudit+0x240/0x240 [ 280.631383][ T26] ? selinux_nlmsg_lookup+0x3de/0x4a0 [ 280.636816][ T26] netlink_rcv_skb+0x1e0/0x430 [ 280.901357][ T26] ? rtnetlink_bind+0x80/0x80 [ 280.906212][ T26] ? netlink_ack+0xb80/0xb80 [ 280.910814][ T26] ? __netlink_lookup+0x387/0x3b0 [ 281.301353][ T26] rtnetlink_rcv+0x1c/0x20 [ 281.305832][ T26] netlink_unicast+0x876/0xa40 [ 281.310610][ T26] netlink_sendmsg+0x88d/0xb30 [ 281.641369][ T26] ? netlink_getsockopt+0x530/0x530 [ 281.646703][ T26] ? security_socket_sendmsg+0x82/0xa0 [ 281.941356][ T26] __sys_sendto+0x41d/0x580 [ 281.946034][ T26] ? __ia32_sys_getpeername+0x90/0x90 [ 282.201368][ T26] ? ____fput+0x15/0x20 [ 282.205580][ T26] __x64_sys_sendto+0xe5/0x100 [ 282.210410][ T26] do_syscall_64+0x31/0x40 [ 282.561367][ T26] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 282.567440][ T26] RIP: 0033:0x7f2d05a55d03 [ 282.851336][ T26] RSP: 002b:00007fff63a08308 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 282.859902][ T26] RAX: ffffffffffffffda RBX: 00007f2d067d9620 RCX: 00007f2d05a55d03 [ 283.271351][ T26] RDX: 0000000000000040 RSI: 00007f2d067d9670 RDI: 0000000000000003 [ 283.279394][ T26] RBP: 0000000000000001 R08: 00007fff63a08324 R09: 000000000000000c [ 283.661341][ T26] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 [ 283.669367][ T26] R13: 0000000000000000 R14: 00007f2d067d9670 R15: 0000000000000000 [ 284.091373][ T26] INFO: task syz-executor:361 blocked for more than 141 seconds. [ 284.099281][ T26] Not tainted syzkaller #0 [ 284.451358][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 284.460085][ T26] task:syz-executor state:D stack: 0 pid: 361 ppid: 345 flags:0x10004000 [ 284.941380][ T26] Call Trace: [ 284.944720][ T26] __schedule+0xb47/0x1310 [ 284.949185][ T26] ? release_firmware_map_entry+0x190/0x190 [ 285.301367][ T26] ? __mutex_add_waiter+0xc7/0x270 [ 285.306535][ T26] ? __kasan_check_write+0x14/0x20 [ 285.531326][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 148s! [ 285.540387][ C0] Showing busy workqueues and worker pools: [ 285.546342][ C0] workqueue events: flags=0x0 [ 285.551034][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 285.551355][ T24] kauditd_printk_skb: 37 callbacks suppressed [ 285.551369][ T24] audit: type=1400 audit(1759540132.060:111): avc: denied { read } for pid=77 comm="syslogd" name="log" dev="sda1" ino=2010 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 [ 285.558697][ C0] pending: [ 285.571372][ T26] ? atomic_dec_and_mutex_lock+0x190/0x190 [ 285.586512][ C0] psi_avgs_work, vmstat_shepherd [ 285.600805][ C0] workqueue events_unbound: flags=0x2 [ 285.606291][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4 [ 285.613516][ C0] in-flight: 334:linkwatch_event linkwatch_event [ 285.620246][ C0] workqueue events_power_efficient: flags=0x80 [ 285.626440][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 [ 285.634080][ C0] pending: wg_ratelimiter_gc_entries, neigh_periodic_work, check_lifetime [ 285.642964][ C0] workqueue mm_percpu_wq: flags=0x8 [ 285.648165][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 285.655826][ C0] pending: vmstat_update [ 285.660493][ C0] workqueue netns: flags=0xe000a [ 285.665452][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=3 [ 285.672644][ C0] in-flight: 49:cleanup_net [ 285.677578][ C0] workqueue kblockd: flags=0x18 [ 285.682572][ C0] pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2 [ 285.690399][ C0] pending: blk_mq_timeout_work [ 285.695965][ C0] workqueue dm_bufio_cache: flags=0x8 [ 285.701369][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 285.709034][ C0] pending: work_fn [ 285.713211][ C0] workqueue ipv6_addrconf: flags=0x40008 [ 285.718850][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=81 [ 285.726532][ C0] in-flight: 406:addrconf_dad_work [ 285.732028][ C0] delayed: addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work [ 285.732568][ C0] , addrconf_dad_work [ 285.811472][ T24] audit: type=1400 audit(1759540132.060:112): avc: denied { search } for pid=77 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 285.818686][ C0] , addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work [ 285.892915][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=101 [ 285.900582][ C0] in-flight: 5:addrconf_dad_work [ 285.905907][ C0] delayed: addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work [ 285.906438][ C0] , addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_verify_work [ 286.061354][ T26] schedule+0x13c/0x1d0 [ 286.076645][ C0] workqueue wg-crypt-wg0: flags=0x28 [ 286.086047][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 286.093723][ C0] pending: wg_packet_encrypt_worker, wg_packet_tx_worker [ 286.101324][ C0] workqueue wg-kex-wg0: flags=0x24 [ 286.106449][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 286.114149][ C0] pending: wg_packet_handshake_receive_worker [ 286.120677][ C0] workqueue wg-crypt-wg0: flags=0x28 [ 286.126002][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 [ 286.133681][ C0] pending: wg_packet_encrypt_worker, wg_packet_tx_worker, wg_packet_decrypt_worker [ 286.141369][ T24] audit: type=1400 audit(1759540132.060:113): avc: denied { write } for pid=77 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 286.143491][ C0] workqueue wg-kex-wg1: flags=0x24 [ 286.169959][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 286.177627][ C0] pending: wg_packet_handshake_receive_worker [ 286.184216][ C0] workqueue wg-crypt-wg1: flags=0x28 [ 286.189604][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4 [ 286.197278][ C0] pending: wg_packet_decrypt_worker, wg_packet_tx_worker, wg_packet_encrypt_worker [ 286.206999][ C0] workqueue wg-kex-wg2: flags=0x24 [ 286.212174][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 286.219843][ C0] pending: wg_packet_handshake_receive_worker [ 286.226408][ C0] workqueue wg-crypt-wg2: flags=0x28 [ 286.231721][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 286.239381][ C0] pending: wg_packet_tx_worker, wg_packet_encrypt_worker [ 286.246895][ C0] pool 0: cpus=0 node=0 flags=0x0 nice=0 hung=148s workers=14 idle: 413 414 412 411 410 409 351 352 15 350 416 349 415 [ 286.259531][ C0] pool 2: cpus=1 node=0 flags=0x0 nice=0 hung=0s workers=33 idle: 404 405 403 402 401 400 399 398 397 396 395 394 393 392 391 390 389 388 387 386 385 384 383 382 381 380 407 408 379 53 25 20 [ 286.278530][ C0] pool 4: cpus=0-1 flags=0x4 nice=0 hung=0s workers=5 idle: 332 9 7 [ 286.481340][ T26] schedule_preempt_disabled+0x13/0x20 [ 286.486935][ T26] __mutex_lock+0x6c0/0xc50 [ 286.751353][ T26] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20 [ 286.758271][ T26] ? cap_capable+0x19c/0x220 [ 286.771358][ T24] audit: type=1400 audit(1759540132.060:114): avc: denied { add_name } for pid=77 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 287.081365][ T26] __mutex_lock_slowpath+0xe/0x10 [ 287.086521][ T26] mutex_lock+0xcf/0xe0 [ 287.090687][ T26] ? mutex_trylock+0xa0/0xa0 [ 287.341376][ T24] audit: type=1400 audit(1759540132.060:115): avc: denied { create } for pid=77 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 287.451692][ T26] ? ns_capable+0x8c/0xf0 [ 287.456129][ T26] ? netlink_net_capable+0x125/0x160 [ 287.711345][ T26] rtnetlink_rcv_msg+0x4b7/0xb90 [ 287.716428][ T26] ? rtnetlink_bind+0x80/0x80 [ 287.721135][ T26] ? arch_stack_walk+0xee/0x140 [ 287.891375][ T24] audit: type=1400 audit(1759540132.060:116): avc: denied { append open } for pid=77 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=5 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 288.121343][ T26] ? stack_trace_save+0x98/0xe0 [ 288.126249][ T26] ? stack_trace_snprint+0xf0/0xf0 [ 288.391346][ T26] ? memcpy+0x56/0x70 [ 288.395461][ T26] ? avc_has_perm+0x234/0x360 [ 288.400145][ T26] ? __kasan_slab_alloc+0xbd/0xf0 [ 288.551373][ T24] audit: type=1400 audit(1759540132.060:117): avc: denied { getattr } for pid=77 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=5 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 288.781338][ T26] ? slab_post_alloc_hook+0x5d/0x2f0 [ 288.786685][ T26] ? __x64_sys_sendto+0xe5/0x100 [ 289.041363][ T26] ? avc_has_perm_noaudit+0x240/0x240 [ 289.047042][ T26] ? selinux_nlmsg_lookup+0x3de/0x4a0 [ 289.331374][ T26] netlink_rcv_skb+0x1e0/0x430 [ 289.336191][ T26] ? rtnetlink_bind+0x80/0x80 [ 289.340875][ T26] ? netlink_ack+0xb80/0xb80 [ 289.691366][ T26] ? __netlink_lookup+0x387/0x3b0 [ 289.696442][ T26] rtnetlink_rcv+0x1c/0x20 [ 289.700958][ T26] netlink_unicast+0x876/0xa40 [ 290.091350][ T26] netlink_sendmsg+0x88d/0xb30 [ 290.096166][ T26] ? netlink_getsockopt+0x530/0x530 [ 290.361373][ T26] ? security_socket_sendmsg+0x82/0xa0 [ 290.366926][ T26] __sys_sendto+0x41d/0x580 [ 290.601395][ T26] ? __ia32_sys_getpeername+0x90/0x90 [ 290.607116][ T26] ? ____fput+0x15/0x20 [ 290.881347][ T26] __x64_sys_sendto+0xe5/0x100 [ 290.886157][ T26] do_syscall_64+0x31/0x40 [ 290.890584][ T26] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 291.271355][ T26] RIP: 0033:0x7ff759293d03 [ 291.275905][ T26] RSP: 002b:00007ffd9b74be98 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 291.611337][ T26] RAX: ffffffffffffffda RBX: 00007ff75a017620 RCX: 00007ff759293d03 [ 291.619429][ T26] RDX: 0000000000000028 RSI: 00007ff75a017670 RDI: 0000000000000003 [ 292.031363][ T26] RBP: 0000000000000001 R08: 00007ffd9b74beb4 R09: 000000000000000c [ 292.039388][ T26] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 [ 292.481336][ T26] R13: 0000000000000000 R14: 00007ff75a017670 R15: 0000000000000000 [ 292.701351][ T26] INFO: task syz-executor:362 blocked for more than 150 seconds. [ 292.709219][ T26] Not tainted syzkaller #0 [ 293.041323][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 293.050305][ T26] task:syz-executor state:D stack: 0 pid: 362 ppid: 356 flags:0x10004000 [ 293.501351][ T26] Call Trace: [ 293.504691][ T26] __schedule+0xb47/0x1310 [ 293.509115][ T26] ? release_firmware_map_entry+0x190/0x190 [ 293.871611][ T26] ? __mutex_add_waiter+0xc7/0x270 [ 293.876770][ T26] ? __kasan_check_write+0x14/0x20 [ 294.141366][ T26] ? atomic_dec_and_mutex_lock+0x190/0x190 [ 294.147322][ T26] schedule+0x13c/0x1d0 [ 294.391394][ T26] schedule_preempt_disabled+0x13/0x20 [ 294.396897][ T26] __mutex_lock+0x6c0/0xc50 [ 294.671376][ T26] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20 [ 294.678201][ T26] ? cap_capable+0x19c/0x220 [ 294.981358][ T26] __mutex_lock_slowpath+0xe/0x10 [ 294.986451][ T26] mutex_lock+0xcf/0xe0 [ 294.990664][ T26] ? mutex_trylock+0xa0/0xa0 [ 295.331366][ T26] ? ns_capable+0x8c/0xf0 [ 295.335754][ T26] ? netlink_net_capable+0x125/0x160 [ 295.341144][ T26] rtnetlink_rcv_msg+0x4b7/0xb90