Warning: Permanently added '10.128.0.76' (ED25519) to the list of known hosts. 2026/05/17 13:55:51 parsed 1 programs [ 116.041425][ T36] audit: type=1400 audit(1779026151.180:64): avc: denied { node_bind } for pid=303 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 117.675153][ T36] audit: type=1400 audit(1779026152.810:65): avc: denied { mounton } for pid=310 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2024 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 117.678902][ T310] cgroup: Unknown subsys name 'net' [ 117.698167][ T36] audit: type=1400 audit(1779026152.810:66): avc: denied { mount } for pid=310 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 [ 117.725419][ T36] audit: type=1400 audit(1779026152.840:67): avc: denied { unmount } for pid=310 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 117.725890][ T310] cgroup: Unknown subsys name 'devices' [ 117.949387][ T310] cgroup: Unknown subsys name 'hugetlb' [ 117.955044][ T310] cgroup: Unknown subsys name 'rlimit' [ 118.099276][ T36] audit: type=1400 audit(1779026153.240:68): avc: denied { setattr } for pid=310 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=190 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 118.122523][ T36] audit: type=1400 audit(1779026153.240:69): avc: denied { create } for pid=310 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 118.143072][ T36] audit: type=1400 audit(1779026153.240:70): avc: denied { write } for pid=310 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 118.163677][ T36] audit: type=1400 audit(1779026153.240:71): avc: denied { read } for pid=310 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 Setting up swapspace version 1, size = 127995904 bytes [ 118.183961][ T36] audit: type=1400 audit(1779026153.240:72): avc: denied { sys_module } for pid=310 comm="syz-executor" capability=16 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability permissive=1 [ 118.194035][ T313] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 118.205142][ T36] audit: type=1400 audit(1779026153.240:73): avc: denied { mounton } for pid=310 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1 [ 118.262448][ T310] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 119.237878][ T320] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 119.406830][ T319] bridge0: port 1(bridge_slave_0) entered blocking state [ 119.414025][ T319] bridge0: port 1(bridge_slave_0) entered disabled state [ 119.421220][ T319] bridge_slave_0: entered allmulticast mode [ 119.429055][ T319] bridge_slave_0: entered promiscuous mode [ 119.443105][ T319] bridge0: port 2(bridge_slave_1) entered blocking state [ 119.450300][ T319] bridge0: port 2(bridge_slave_1) entered disabled state [ 119.458937][ T319] bridge_slave_1: entered allmulticast mode [ 119.465415][ T319] bridge_slave_1: entered promiscuous mode [ 119.680249][ T319] bridge0: port 2(bridge_slave_1) entered blocking state [ 119.687473][ T319] bridge0: port 2(bridge_slave_1) entered forwarding state [ 119.694813][ T319] bridge0: port 1(bridge_slave_0) entered blocking state [ 119.701912][ T319] bridge0: port 1(bridge_slave_0) entered forwarding state [ 119.863981][ T53] bridge0: port 1(bridge_slave_0) entered disabled state [ 119.881734][ T53] bridge0: port 2(bridge_slave_1) entered disabled state [ 119.917350][ T53] bridge0: port 1(bridge_slave_0) entered blocking state [ 119.924547][ T53] bridge0: port 1(bridge_slave_0) entered forwarding state [ 119.999716][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 120.006873][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 120.150003][ T319] veth0_vlan: entered promiscuous mode [ 120.208582][ T319] veth1_macvtap: entered promiscuous mode 2026/05/17 13:55:55 executed programs: 0 [ 120.626758][ T381] bridge0: port 1(bridge_slave_0) entered blocking state [ 120.633859][ T381] bridge0: port 1(bridge_slave_0) entered disabled state [ 120.641262][ T381] bridge_slave_0: entered allmulticast mode [ 120.647757][ T381] bridge_slave_0: entered promiscuous mode [ 120.657347][ T381] bridge0: port 2(bridge_slave_1) entered blocking state [ 120.664416][ T381] bridge0: port 2(bridge_slave_1) entered disabled state [ 120.671520][ T381] bridge_slave_1: entered allmulticast mode [ 120.677888][ T381] bridge_slave_1: entered promiscuous mode [ 120.693127][ T382] bridge0: port 1(bridge_slave_0) entered blocking state [ 120.700284][ T382] bridge0: port 1(bridge_slave_0) entered disabled state [ 120.707757][ T382] bridge_slave_0: entered allmulticast mode [ 120.714032][ T382] bridge_slave_0: entered promiscuous mode [ 120.730691][ T382] bridge0: port 2(bridge_slave_1) entered blocking state [ 120.737786][ T382] bridge0: port 2(bridge_slave_1) entered disabled state [ 120.744872][ T382] bridge_slave_1: entered allmulticast mode [ 120.751371][ T382] bridge_slave_1: entered promiscuous mode [ 120.757686][ T380] bridge0: port 1(bridge_slave_0) entered blocking state [ 120.764751][ T380] bridge0: port 1(bridge_slave_0) entered disabled state [ 120.772008][ T380] bridge_slave_0: entered allmulticast mode [ 120.778480][ T380] bridge_slave_0: entered promiscuous mode [ 120.798550][ T380] bridge0: port 2(bridge_slave_1) entered blocking state [ 120.805643][ T380] bridge0: port 2(bridge_slave_1) entered disabled state [ 120.812975][ T380] bridge_slave_1: entered allmulticast mode [ 120.819360][ T380] bridge_slave_1: entered promiscuous mode [ 120.828758][ T12] bridge_slave_1: left allmulticast mode [ 120.834538][ T12] bridge_slave_1: left promiscuous mode [ 120.840230][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 120.847954][ T12] bridge_slave_0: left allmulticast mode [ 120.853619][ T12] bridge_slave_0: left promiscuous mode [ 120.859622][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 120.944267][ T384] bridge0: port 1(bridge_slave_0) entered blocking state [ 120.951450][ T384] bridge0: port 1(bridge_slave_0) entered disabled state [ 120.958633][ T384] bridge_slave_0: entered allmulticast mode [ 120.964921][ T384] bridge_slave_0: entered promiscuous mode [ 120.971651][ T384] bridge0: port 2(bridge_slave_1) entered blocking state [ 120.978763][ T384] bridge0: port 2(bridge_slave_1) entered disabled state [ 120.985847][ T384] bridge_slave_1: entered allmulticast mode [ 120.992527][ T384] bridge_slave_1: entered promiscuous mode [ 121.047714][ T12] veth1_macvtap: left promiscuous mode [ 121.053293][ T12] veth0_vlan: left promiscuous mode [ 121.157252][ T36] kauditd_printk_skb: 28 callbacks suppressed [ 121.157272][ T36] audit: type=1400 audit(1779026156.300:102): avc: denied { create } for pid=382 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 121.190499][ T36] audit: type=1400 audit(1779026156.320:103): avc: denied { write } for pid=381 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 121.216062][ T36] audit: type=1400 audit(1779026156.320:104): avc: denied { read } for pid=381 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 121.237360][ T382] bridge0: port 2(bridge_slave_1) entered blocking state [ 121.244437][ T382] bridge0: port 2(bridge_slave_1) entered forwarding state [ 121.251869][ T382] bridge0: port 1(bridge_slave_0) entered blocking state [ 121.258971][ T382] bridge0: port 1(bridge_slave_0) entered forwarding state [ 121.275528][ T381] bridge0: port 2(bridge_slave_1) entered blocking state [ 121.282664][ T381] bridge0: port 2(bridge_slave_1) entered forwarding state [ 121.290025][ T381] bridge0: port 1(bridge_slave_0) entered blocking state [ 121.297100][ T381] bridge0: port 1(bridge_slave_0) entered forwarding state [ 121.346755][ T380] bridge0: port 2(bridge_slave_1) entered blocking state [ 121.353852][ T380] bridge0: port 2(bridge_slave_1) entered forwarding state [ 121.361187][ T380] bridge0: port 1(bridge_slave_0) entered blocking state [ 121.368256][ T380] bridge0: port 1(bridge_slave_0) entered forwarding state [ 121.400025][ T13] bridge0: port 1(bridge_slave_0) entered disabled state [ 121.408182][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 121.417088][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 121.427195][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 121.434272][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state [ 121.495410][ T381] veth0_vlan: entered promiscuous mode [ 121.503856][ T355] bridge0: port 1(bridge_slave_0) entered blocking state [ 121.510983][ T355] bridge0: port 1(bridge_slave_0) entered forwarding state [ 121.519931][ T355] bridge0: port 2(bridge_slave_1) entered blocking state [ 121.527023][ T355] bridge0: port 2(bridge_slave_1) entered forwarding state [ 121.552590][ T382] veth0_vlan: entered promiscuous mode [ 121.559593][ T355] bridge0: port 1(bridge_slave_0) entered blocking state [ 121.566718][ T355] bridge0: port 1(bridge_slave_0) entered forwarding state [ 121.576578][ T381] veth1_macvtap: entered promiscuous mode [ 121.585693][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 121.592799][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state [ 121.617264][ T382] veth1_macvtap: entered promiscuous mode [ 121.672943][ T380] veth0_vlan: entered promiscuous mode [ 121.684068][ T36] audit: type=1400 audit(1779026156.820:105): avc: denied { read write } for pid=399 comm="syz.2.19" name="raw-gadget" dev="devtmpfs" ino=190 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 121.716667][ T36] audit: type=1400 audit(1779026156.820:106): avc: denied { open } for pid=399 comm="syz.2.19" path="/dev/raw-gadget" dev="devtmpfs" ino=190 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 121.742150][ T36] audit: type=1400 audit(1779026156.820:107): avc: denied { ioctl } for pid=399 comm="syz.2.19" path="/dev/raw-gadget" dev="devtmpfs" ino=190 ioctlcmd=0x5500 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 121.760079][ T380] veth1_macvtap: entered promiscuous mode [ 121.774909][ T384] veth0_vlan: entered promiscuous mode [ 121.791116][ T384] veth1_macvtap: entered promiscuous mode [ 121.916134][ T63] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 121.923760][ T9] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 122.066121][ T397] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 122.073730][ T45] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 122.086240][ T63] usb 2-1: Using ep0 maxpacket: 16 [ 122.091479][ T9] usb 3-1: Using ep0 maxpacket: 16 [ 122.098331][ T63] usb 2-1: unable to get BOS descriptor or descriptor too short [ 122.106129][ T9] usb 3-1: unable to get BOS descriptor or descriptor too short [ 122.114695][ T9] usb 3-1: config 1 interface 2 altsetting 1 endpoint 0x82 has an invalid bInterval 127, changing to 7 [ 122.125841][ T63] usb 2-1: config 1 interface 2 altsetting 1 endpoint 0x82 has an invalid bInterval 127, changing to 7 [ 122.139024][ T9] usb 3-1: New USB device found, idVendor=103d, idProduct=0100, bcdDevice= 0.40 [ 122.148622][ T63] usb 2-1: New USB device found, idVendor=103d, idProduct=0100, bcdDevice= 0.40 [ 122.157741][ T9] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 122.165752][ T9] usb 3-1: Product: syz [ 122.170028][ T63] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 122.178173][ T9] usb 3-1: Manufacturer: syz [ 122.182817][ T9] usb 3-1: SerialNumber: syz [ 122.187558][ T63] usb 2-1: Product: syz [ 122.191738][ T63] usb 2-1: Manufacturer: syz [ 122.196898][ T63] usb 2-1: SerialNumber: syz [ 122.226265][ T45] usb 4-1: Using ep0 maxpacket: 16 [ 122.231519][ T397] usb 6-1: Using ep0 maxpacket: 16 [ 122.238315][ T45] usb 4-1: unable to get BOS descriptor or descriptor too short [ 122.246462][ T397] usb 6-1: unable to get BOS descriptor or descriptor too short [ 122.255018][ T45] usb 4-1: config 1 interface 2 altsetting 1 endpoint 0x82 has an invalid bInterval 127, changing to 7 [ 122.266263][ T397] usb 6-1: config 1 interface 2 altsetting 1 endpoint 0x82 has an invalid bInterval 127, changing to 7 [ 122.279827][ T45] usb 4-1: New USB device found, idVendor=103d, idProduct=0100, bcdDevice= 0.40 [ 122.289527][ T397] usb 6-1: New USB device found, idVendor=103d, idProduct=0100, bcdDevice= 0.40 [ 122.298829][ T45] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 122.306967][ T397] usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 122.314993][ T397] usb 6-1: Product: syz [ 122.319218][ T45] usb 4-1: Product: syz [ 122.323433][ T45] usb 4-1: Manufacturer: syz [ 122.328375][ T45] usb 4-1: SerialNumber: syz [ 122.333721][ T397] usb 6-1: Manufacturer: syz [ 122.338788][ T397] usb 6-1: SerialNumber: syz [ 122.404512][ T9] usb 3-1: Audio class v2/v3 interfaces need an interface association [ 122.413923][ T63] usb 2-1: Audio class v2/v3 interfaces need an interface association [ 122.422281][ T9] snd-usb-audio 3-1:1.0: probe with driver snd-usb-audio failed with error -22 [ 122.431489][ T63] snd-usb-audio 2-1:1.0: probe with driver snd-usb-audio failed with error -22 2026/05/17 13:56:01 executed programs: 16 2026/05/17 13:56:07 executed programs: 24 2026/05/17 13:56:13 executed programs: 32 2026/05/17 13:56:19 executed programs: 40 2026/05/17 13:56:25 executed programs: 48 2026/05/17 13:56:31 executed programs: 56 2026/05/17 13:56:37 executed programs: 64 2026/05/17 13:56:43 executed programs: 72 2026/05/17 13:56:49 executed programs: 80 2026/05/17 13:56:56 executed programs: 88 2026/05/17 13:57:02 executed programs: 96 2026/05/17 13:57:08 executed programs: 104 2026/05/17 13:57:14 executed programs: 112 2026/05/17 13:57:20 executed programs: 120 2026/05/17 13:57:26 executed programs: 128 2026/05/17 13:57:32 executed programs: 136 2026/05/17 13:57:38 executed programs: 144 2026/05/17 13:57:44 executed programs: 152 2026/05/17 13:57:50 executed programs: 160 2026/05/17 13:57:56 executed programs: 168 2026/05/17 13:58:02 executed programs: 176 2026/05/17 13:58:08 executed programs: 184 2026/05/17 13:58:14 executed programs: 192 [ 260.698286][ T37] INFO: task kworker/1:1:45 blocked for more than 122 seconds. [ 260.706254][ T37] Not tainted syzkaller #0 [ 260.711313][ T37] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 260.720238][ T37] task:kworker/1:1 state:D stack:0 pid:45 tgid:45 ppid:2 flags:0x00004000 [ 260.730767][ T37] Workqueue: usb_hub_wq hub_event [ 260.736181][ T37] Call Trace: [ 260.739540][ T37] [ 260.761509][ T37] __schedule+0x14ce/0x2100 [ 260.774705][ T37] ? __sched_text_start+0x10/0x10 [ 260.783445][ T37] ? kasan_save_alloc_info+0x40/0x50 [ 260.789090][ T37] ? __kasan_kmalloc+0x96/0xb0 [ 260.794041][ T37] ? kthread_data+0x54/0xc0 [ 260.800712][ T37] ? wq_worker_sleeping+0x69/0x260 [ 260.806192][ T37] ? trace_contention_begin+0xc0/0xc0 [ 260.811648][ T37] ? sysfs_do_create_link_sd+0x8a/0x120 [ 260.817565][ T37] schedule+0xc5/0x240 [ 260.821698][ T37] schedule_preempt_disabled+0x14/0x30 [ 260.827523][ T37] __mutex_lock+0x960/0x1bc0 [ 260.832173][ T37] ? __ww_mutex_lock_interruptible_slowpath+0x30/0x30 [ 260.839320][ T37] ? selinux_kernfs_init_security+0x14b/0x4b0 [ 260.845458][ T37] ? __cfi_selinux_kernfs_init_security+0x10/0x10 [ 260.852248][ T37] ? snd_usb_apply_boot_quirk+0xea6/0x2d10 [ 260.858320][ T37] ? bpf_lsm_kernfs_init_security+0xd/0x20 [ 260.864264][ T37] ? security_kernfs_init_security+0x39/0xf0 [ 260.870935][ T37] __mutex_lock_slowpath+0xe/0x20 [ 260.876218][ T37] mutex_lock+0x113/0x1d0 [ 260.880595][ T37] ? __cfi_mutex_lock+0x10/0x10 [ 260.885666][ T37] ? _raw_spin_lock_irqsave+0xc1/0x160 [ 260.891506][ T37] ? __cfi__raw_spin_lock_irqsave+0x10/0x10 [ 260.897566][ T37] usb_audio_probe+0x39d/0x1d60 [ 260.902527][ T37] ? pm_runtime_enable+0x1eb/0x2d0 [ 260.907889][ T37] ? __cfi_usb_audio_probe+0x10/0x10 [ 260.913293][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 260.919501][ T37] ? pm_runtime_enable+0x1eb/0x2d0 [ 260.924774][ T37] usb_probe_interface+0x6ac/0xc00 [ 260.930194][ T37] ? __cfi_usb_probe_interface+0x10/0x10 [ 260.936249][ T37] really_probe+0x2d8/0x890 [ 260.940813][ T37] __driver_probe_device+0x198/0x280 [ 260.946392][ T37] driver_probe_device+0x54/0x3f0 [ 260.951466][ T37] ? __device_attach_driver+0x2db/0x4b0 [ 260.957287][ T37] __device_attach_driver+0x2f1/0x4b0 [ 260.962716][ T37] bus_for_each_drv+0x264/0x300 [ 260.967850][ T37] ? __cfi___device_attach_driver+0x10/0x10 [ 260.973791][ T37] ? __cfi_bus_for_each_drv+0x10/0x10 [ 260.979430][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 260.985294][ T37] __device_attach+0x2c9/0x3c0 [ 260.990346][ T37] ? device_attach+0x40/0x40 [ 260.994982][ T37] ? _raw_spin_lock+0x92/0x120 [ 260.999985][ T37] ? __cfi__raw_spin_lock+0x10/0x10 [ 261.005297][ T37] device_initial_probe+0x1e/0x30 [ 261.010694][ T37] bus_probe_device+0x18b/0x270 [ 261.015671][ T37] device_add+0x80c/0xbf0 [ 261.020339][ T37] usb_set_configuration+0x1acf/0x20b0 [ 261.025901][ T37] usb_generic_driver_probe+0x95/0x160 [ 261.031580][ T37] usb_probe_device+0x1d1/0x380 [ 261.036639][ T37] ? __cfi_usb_probe_device+0x10/0x10 [ 261.042057][ T37] really_probe+0x2d8/0x890 [ 261.046854][ T37] __driver_probe_device+0x198/0x280 [ 261.052196][ T37] driver_probe_device+0x54/0x3f0 [ 261.057617][ T37] ? __device_attach_driver+0x2db/0x4b0 [ 261.063249][ T37] __device_attach_driver+0x2f1/0x4b0 [ 261.068972][ T37] bus_for_each_drv+0x264/0x300 [ 261.073970][ T37] ? __cfi___device_attach_driver+0x10/0x10 [ 261.080591][ T37] ? __cfi_bus_for_each_drv+0x10/0x10 [ 261.086338][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 261.092403][ T37] __device_attach+0x2c9/0x3c0 [ 261.097419][ T37] ? device_attach+0x40/0x40 [ 261.102052][ T37] ? _raw_spin_lock+0x92/0x120 [ 261.107099][ T37] ? __cfi__raw_spin_lock+0x10/0x10 [ 261.112334][ T37] device_initial_probe+0x1e/0x30 [ 261.117652][ T37] bus_probe_device+0x18b/0x270 [ 261.122543][ T37] device_add+0x80c/0xbf0 [ 261.127119][ T37] usb_new_device+0x9f8/0x15b0 [ 261.131997][ T37] ? __cfi_usb_new_device+0x10/0x10 [ 261.137404][ T37] hub_event+0x30c6/0x4700 [ 261.141891][ T37] ? __cfi_hub_event+0x10/0x10 [ 261.146913][ T37] ? pwq_dec_nr_in_flight+0x6c7/0xc60 [ 261.152329][ T37] ? _raw_spin_lock_irq+0x93/0x120 [ 261.157787][ T37] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 261.163388][ T37] process_scheduled_works+0x7d4/0x1020 [ 261.169656][ T37] worker_thread+0xc51/0x1370 [ 261.174432][ T37] kthread+0x2c9/0x370 [ 261.178798][ T37] ? __cfi_worker_thread+0x10/0x10 [ 261.184024][ T37] ? __cfi_kthread+0x10/0x10 [ 261.188891][ T37] ret_from_fork+0x67/0xa0 [ 261.193352][ T37] ? __cfi_kthread+0x10/0x10 [ 261.198217][ T37] ret_from_fork_asm+0x1a/0x30 [ 261.203038][ T37] [ 261.209292][ T37] INFO: task kworker/0:2:63 blocked for more than 123 seconds. [ 261.216899][ T37] Not tainted syzkaller #0 [ 261.221927][ T37] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 261.230978][ T37] task:kworker/0:2 state:D stack:0 pid:63 tgid:63 ppid:2 flags:0x00004000 [ 261.241369][ T37] Workqueue: usb_hub_wq hub_event [ 261.246567][ T37] Call Trace: [ 261.249963][ T37] [ 261.252977][ T37] __schedule+0x14ce/0x2100 [ 261.257779][ T37] ? __sched_text_start+0x10/0x10 [ 261.262849][ T37] ? kasan_save_alloc_info+0x40/0x50 [ 261.268414][ T37] ? __kasan_kmalloc+0x96/0xb0 [ 261.273235][ T37] ? __kasan_check_write+0x18/0x20 [ 261.278656][ T37] ? kthread_data+0x54/0xc0 [ 261.283204][ T37] ? wq_worker_sleeping+0x69/0x260 [ 261.288610][ T37] ? trace_contention_begin+0xc0/0xc0 [ 261.294039][ T37] ? sysfs_do_create_link_sd+0x8a/0x120 [ 261.299992][ T37] schedule+0xc5/0x240 [ 261.304123][ T37] schedule_preempt_disabled+0x14/0x30 [ 261.310028][ T37] __mutex_lock+0x960/0x1bc0 [ 261.314685][ T37] ? __ww_mutex_lock_interruptible_slowpath+0x30/0x30 [ 261.321799][ T37] ? selinux_kernfs_init_security+0x14b/0x4b0 [ 261.328081][ T37] ? __cfi_selinux_kernfs_init_security+0x10/0x10 [ 261.334804][ T37] ? snd_usb_apply_boot_quirk+0xea6/0x2d10 [ 261.340912][ T37] ? bpf_lsm_kernfs_init_security+0xd/0x20 [ 261.347102][ T37] ? security_kernfs_init_security+0x39/0xf0 [ 261.353160][ T37] __mutex_lock_slowpath+0xe/0x20 [ 261.358495][ T37] mutex_lock+0x113/0x1d0 [ 261.362969][ T37] ? __cfi_mutex_lock+0x10/0x10 [ 261.368089][ T37] ? _raw_spin_lock_irqsave+0xc1/0x160 [ 261.373670][ T37] ? __cfi__raw_spin_lock_irqsave+0x10/0x10 [ 261.379826][ T37] usb_audio_probe+0x39d/0x1d60 [ 261.384795][ T37] ? pm_runtime_enable+0x1eb/0x2d0 [ 261.390163][ T37] ? __cfi_usb_audio_probe+0x10/0x10 [ 261.395555][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 261.401594][ T37] ? pm_runtime_enable+0x1eb/0x2d0 [ 261.406933][ T37] usb_probe_interface+0x6ac/0xc00 [ 261.412097][ T37] ? __cfi_usb_probe_interface+0x10/0x10 [ 261.418012][ T37] really_probe+0x2d8/0x890 [ 261.422560][ T37] __driver_probe_device+0x198/0x280 [ 261.428108][ T37] driver_probe_device+0x54/0x3f0 [ 261.433193][ T37] ? __device_attach_driver+0x2db/0x4b0 [ 261.439077][ T37] __device_attach_driver+0x2f1/0x4b0 [ 261.444514][ T37] bus_for_each_drv+0x264/0x300 [ 261.449665][ T37] ? __cfi___device_attach_driver+0x10/0x10 [ 261.455605][ T37] ? __cfi_bus_for_each_drv+0x10/0x10 [ 261.461269][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 261.467344][ T37] __device_attach+0x2c9/0x3c0 [ 261.472217][ T37] ? device_attach+0x40/0x40 [ 261.477054][ T37] ? _raw_spin_lock+0x92/0x120 [ 261.481875][ T37] ? __cfi__raw_spin_lock+0x10/0x10 [ 261.487428][ T37] device_initial_probe+0x1e/0x30 [ 261.492513][ T37] bus_probe_device+0x18b/0x270 [ 261.497690][ T37] device_add+0x80c/0xbf0 [ 261.502068][ T37] usb_set_configuration+0x1acf/0x20b0 [ 261.508019][ T37] usb_generic_driver_probe+0x95/0x160 [ 261.513542][ T37] usb_probe_device+0x1d1/0x380 [ 261.518714][ T37] ? __cfi_usb_probe_device+0x10/0x10 [ 261.524313][ T37] really_probe+0x2d8/0x890 [ 261.529123][ T37] __driver_probe_device+0x198/0x280 [ 261.534456][ T37] driver_probe_device+0x54/0x3f0 [ 261.539756][ T37] ? __device_attach_driver+0x2db/0x4b0 [ 261.545361][ T37] __device_attach_driver+0x2f1/0x4b0 [ 261.551526][ T37] bus_for_each_drv+0x264/0x300 [ 261.556655][ T37] ? __cfi___device_attach_driver+0x10/0x10 [ 261.562657][ T37] ? __cfi_bus_for_each_drv+0x10/0x10 [ 261.568310][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 261.574222][ T37] __device_attach+0x2c9/0x3c0 [ 261.579214][ T37] ? device_attach+0x40/0x40 [ 261.583849][ T37] ? _raw_spin_lock+0x92/0x120 [ 261.588899][ T37] ? __cfi__raw_spin_lock+0x10/0x10 [ 261.594137][ T37] device_initial_probe+0x1e/0x30 [ 261.599436][ T37] bus_probe_device+0x18b/0x270 [ 261.604321][ T37] device_add+0x80c/0xbf0 [ 261.608877][ T37] usb_new_device+0x9f8/0x15b0 [ 261.613743][ T37] ? __cfi_usb_new_device+0x10/0x10 [ 261.619160][ T37] hub_event+0x30c6/0x4700 [ 261.623625][ T37] ? __cfi_hub_event+0x10/0x10 [ 261.628636][ T37] ? pwq_dec_nr_in_flight+0x6c7/0xc60 [ 261.634049][ T37] ? _raw_spin_lock_irq+0x93/0x120 [ 261.639411][ T37] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 261.645010][ T37] process_scheduled_works+0x7d4/0x1020 [ 261.650940][ T37] worker_thread+0xc51/0x1370 [ 261.655675][ T37] ? __kasan_check_read+0x15/0x20 [ 261.660991][ T37] ? schedule+0xc5/0x240 [ 261.665279][ T37] kthread+0x2c9/0x370 [ 261.669571][ T37] ? __cfi_worker_thread+0x10/0x10 [ 261.674799][ T37] ? __cfi_kthread+0x10/0x10 [ 261.679599][ T37] ret_from_fork+0x67/0xa0 [ 261.684063][ T37] ? __cfi_kthread+0x10/0x10 [ 261.689034][ T37] ret_from_fork_asm+0x1a/0x30 [ 261.693853][ T37] [ 261.697144][ T37] INFO: task kworker/1:2:397 blocked for more than 123 seconds. [ 261.704884][ T37] Not tainted syzkaller #0 [ 261.710066][ T37] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 261.718936][ T37] task:kworker/1:2 state:D stack:0 pid:397 tgid:397 ppid:2 flags:0x00004000 [ 261.729419][ T37] Workqueue: usb_hub_wq hub_event [ 261.734507][ T37] Call Trace: [ 261.738018][ T37] [ 261.741035][ T37] __schedule+0x14ce/0x2100 [ 261.745588][ T37] ? __sched_text_start+0x10/0x10 [ 261.750923][ T37] ? kasan_save_alloc_info+0x40/0x50 [ 261.756418][ T37] ? __kasan_kmalloc+0x96/0xb0 [ 261.761223][ T37] ? kthread_data+0x54/0xc0 [ 261.765761][ T37] ? wq_worker_sleeping+0x69/0x260 [ 261.771232][ T37] ? trace_contention_begin+0xc0/0xc0 [ 261.776784][ T37] ? sysfs_do_create_link_sd+0x8a/0x120 [ 261.782451][ T37] schedule+0xc5/0x240 [ 261.786765][ T37] schedule_preempt_disabled+0x14/0x30 [ 261.792270][ T37] __mutex_lock+0x960/0x1bc0 [ 261.797116][ T37] ? __ww_mutex_lock_interruptible_slowpath+0x30/0x30 [ 261.803992][ T37] ? selinux_kernfs_init_security+0x14b/0x4b0 [ 261.810359][ T37] ? __cfi_selinux_kernfs_init_security+0x10/0x10 [ 261.816965][ T37] ? snd_usb_apply_boot_quirk+0xea6/0x2d10 [ 261.822877][ T37] ? bpf_lsm_kernfs_init_security+0xd/0x20 [ 261.828884][ T37] ? security_kernfs_init_security+0x39/0xf0 [ 261.835120][ T37] __mutex_lock_slowpath+0xe/0x20 [ 261.840309][ T37] mutex_lock+0x113/0x1d0 [ 261.844706][ T37] ? __cfi_mutex_lock+0x10/0x10 [ 261.849826][ T37] ? _raw_spin_lock_irqsave+0xc1/0x160 [ 261.855326][ T37] ? __cfi__raw_spin_lock_irqsave+0x10/0x10 [ 261.861477][ T37] usb_audio_probe+0x39d/0x1d60 [ 261.866560][ T37] ? pm_runtime_enable+0x1eb/0x2d0 [ 261.871813][ T37] ? __cfi_usb_audio_probe+0x10/0x10 [ 261.877395][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 261.883326][ T37] ? pm_runtime_enable+0x1eb/0x2d0 [ 261.888706][ T37] usb_probe_interface+0x6ac/0xc00 [ 261.893946][ T37] ? __cfi_usb_probe_interface+0x10/0x10 [ 261.899847][ T37] really_probe+0x2d8/0x890 [ 261.904462][ T37] __driver_probe_device+0x198/0x280 [ 261.909981][ T37] driver_probe_device+0x54/0x3f0 [ 261.915207][ T37] ? __device_attach_driver+0x2db/0x4b0 [ 261.920993][ T37] __device_attach_driver+0x2f1/0x4b0 [ 261.926577][ T37] bus_for_each_drv+0x264/0x300 [ 261.931558][ T37] ? __cfi___device_attach_driver+0x10/0x10 [ 261.937744][ T37] ? __cfi_bus_for_each_drv+0x10/0x10 [ 261.943328][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 261.949359][ T37] __device_attach+0x2c9/0x3c0 [ 261.954166][ T37] ? device_attach+0x40/0x40 [ 261.959045][ T37] ? _raw_spin_lock+0x92/0x120 [ 261.963908][ T37] ? __cfi__raw_spin_lock+0x10/0x10 [ 261.969304][ T37] device_initial_probe+0x1e/0x30 [ 261.974424][ T37] bus_probe_device+0x18b/0x270 [ 261.979490][ T37] device_add+0x80c/0xbf0 [ 261.983861][ T37] usb_set_configuration+0x1acf/0x20b0 [ 261.989593][ T37] usb_generic_driver_probe+0x95/0x160 [ 261.995090][ T37] usb_probe_device+0x1d1/0x380 [ 262.000192][ T37] ? __cfi_usb_probe_device+0x10/0x10 [ 262.005693][ T37] really_probe+0x2d8/0x890 [ 262.010491][ T37] __driver_probe_device+0x198/0x280 [ 262.015817][ T37] driver_probe_device+0x54/0x3f0 [ 262.021113][ T37] ? __device_attach_driver+0x2db/0x4b0 [ 262.026835][ T37] __device_attach_driver+0x2f1/0x4b0 [ 262.032309][ T37] bus_for_each_drv+0x264/0x300 [ 262.037380][ T37] ? __cfi___device_attach_driver+0x10/0x10 [ 262.043392][ T37] ? __cfi_bus_for_each_drv+0x10/0x10 [ 262.049172][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 262.055107][ T37] __device_attach+0x2c9/0x3c0 [ 262.060231][ T37] ? device_attach+0x40/0x40 [ 262.064868][ T37] ? _raw_spin_lock+0x92/0x120 [ 262.069919][ T37] ? __cfi__raw_spin_lock+0x10/0x10 [ 262.075161][ T37] device_initial_probe+0x1e/0x30 [ 262.080505][ T37] bus_probe_device+0x18b/0x270 [ 262.085404][ T37] device_add+0x80c/0xbf0 [ 262.090134][ T37] usb_new_device+0x9f8/0x15b0 [ 262.095007][ T37] ? __cfi_usb_new_device+0x10/0x10 [ 262.100427][ T37] hub_event+0x30c6/0x4700 [ 262.104895][ T37] ? __cfi_hub_event+0x10/0x10 [ 262.109914][ T37] ? pwq_dec_nr_in_flight+0x6c7/0xc60 [ 262.115337][ T37] ? _raw_spin_lock_irq+0x93/0x120 [ 262.120690][ T37] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 262.126567][ T37] process_scheduled_works+0x7d4/0x1020 [ 262.132217][ T37] worker_thread+0xc51/0x1370 [ 262.137125][ T37] kthread+0x2c9/0x370 [ 262.141239][ T37] ? __cfi_worker_thread+0x10/0x10 [ 262.146620][ T37] ? __cfi_kthread+0x10/0x10 [ 262.151260][ T37] ret_from_fork+0x67/0xa0 [ 262.155732][ T37] ? __cfi_kthread+0x10/0x10 [ 262.160643][ T37] ret_from_fork_asm+0x1a/0x30 [ 262.165458][ T37] [ 262.168709][ T37] NMI backtrace for cpu 1 [ 262.168734][ T37] CPU: 1 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 d58365df94cd5f4886b4f3ec3f08a458f2157066 [ 262.168772][ T37] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 262.168786][ T37] Call Trace: [ 262.168793][ T37] [ 262.168802][ T37] __dump_stack+0x21/0x30 [ 262.168838][ T37] dump_stack_lvl+0x140/0x1c0 [ 262.168871][ T37] ? __cfi_dump_stack_lvl+0x10/0x10 [ 262.168908][ T37] dump_stack+0x19/0x20 [ 262.168940][ T37] nmi_cpu_backtrace+0x2ba/0x2d0 [ 262.168963][ T37] ? rcu_read_unlock_special+0x14d/0x440 [ 262.168999][ T37] ? __cfi_nmi_cpu_backtrace+0x10/0x10 [ 262.169021][ T37] ? sched_show_task+0x371/0x530 [ 262.169053][ T37] ? __rcu_read_unlock+0xc0/0xc0 [ 262.169086][ T37] ? __cfi_nmi_raise_cpu_backtrace+0x10/0x10 [ 262.169118][ T37] ? __cfi_nmi_raise_cpu_backtrace+0x10/0x10 [ 262.169151][ T37] nmi_trigger_cpumask_backtrace+0x142/0x2c0 [ 262.169176][ T37] arch_trigger_cpumask_backtrace+0x14/0x20 [ 262.169208][ T37] watchdog+0xdad/0xf00 [ 262.169233][ T37] ? __kasan_check_write+0x18/0x20 [ 262.169259][ T37] ? __cfi_watchdog+0x10/0x10 [ 262.169284][ T37] ? __kasan_check_read+0x15/0x20 [ 262.169306][ T37] ? __kthread_parkme+0x137/0x180 [ 262.169331][ T37] ? schedule+0xc5/0x240 [ 262.169356][ T37] kthread+0x2c9/0x370 [ 262.169382][ T37] ? __cfi_watchdog+0x10/0x10 [ 262.169407][ T37] ? __cfi_kthread+0x10/0x10 [ 262.169434][ T37] ret_from_fork+0x67/0xa0 [ 262.169454][ T37] ? __cfi_kthread+0x10/0x10 [ 262.169481][ T37] ret_from_fork_asm+0x1a/0x30 [ 262.169506][ T37] [ 262.169515][ T37] Sending NMI from CPU 1 to CPUs 0: [ 262.334034][ C0] NMI backtrace for cpu 0 [ 262.334060][ C0] CPU: 0 UID: 0 PID: 111 Comm: udevd Not tainted syzkaller #0 d58365df94cd5f4886b4f3ec3f08a458f2157066 [ 262.334081][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 262.334092][ C0] RIP: 0010:put_cmsg+0x417/0x600 [ 262.334123][ C0] Code: c6 02 eb c9 44 89 f1 80 e1 07 fe c1 38 c1 7c d5 4c 89 f7 e8 8b 69 5e fd eb cb e8 24 de 05 fd eb 09 e8 1d de 05 fd 49 83 c5 02 <31> ff 48 89 de e8 ef e2 05 fd 48 85 db 74 26 4c 89 f8 48 c1 e8 03 [ 262.334137][ C0] RSP: 0018:ffffc90000e7f7d8 EFLAGS: 00040293 [ 262.334153][ C0] RAX: ffffffff8481e57c RBX: 0000000000000000 RCX: ffff88810d300000 [ 262.334165][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 262.334175][ C0] RBP: ffffc90000e7f850 R08: ffff88810d300000 R09: 0000000000000002 [ 262.334187][ C0] R10: 0000000000000001 R11: 0000000000000000 R12: dffffc0000000000 [ 262.334198][ C0] R13: 00007ffff53e02cc R14: ffffc90000e7f918 R15: ffffc90000e7f91c [ 262.334210][ C0] FS: 00007f675874c880(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 262.334225][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 262.334236][ C0] CR2: 00007fec02fea2f8 CR3: 000000010df7e000 CR4: 00000000003526b0 [ 262.334252][ C0] Call Trace: [ 262.334257][ C0] [ 262.334265][ C0] netlink_recvmsg+0x8c0/0xe60 [ 262.334282][ C0] ? __cfi_netlink_recvmsg+0x10/0x10 [ 262.334300][ C0] ? bpf_lsm_socket_recvmsg+0xd/0x20 [ 262.334319][ C0] ? security_socket_recvmsg+0x44/0x130 [ 262.334341][ C0] ? __cfi_netlink_recvmsg+0x10/0x10 [ 262.334355][ C0] sock_recvmsg+0x18c/0x1e0 [ 262.334375][ C0] ____sys_recvmsg+0x1e7/0x4a0 [ 262.334391][ C0] ? __sys_recvmsg_sock+0x60/0x60 [ 262.334408][ C0] ? import_iovec+0x80/0xb0 [ 262.334435][ C0] ___sys_recvmsg+0x216/0x590 [ 262.334451][ C0] ? __sys_recvmsg+0x290/0x290 [ 262.334470][ C0] ? __kasan_check_read+0x15/0x20 [ 262.334487][ C0] __x64_sys_recvmsg+0x1f8/0x2d0 [ 262.334502][ C0] ? __cfi___x64_sys_recvmsg+0x10/0x10 [ 262.334519][ C0] ? __kasan_check_read+0x15/0x20 [ 262.334536][ C0] x64_sys_call+0xdb5/0x2ee0 [ 262.334552][ C0] do_syscall_64+0x57/0xf0 [ 262.334569][ C0] ? clear_bhb_loop+0x50/0xa0 [ 262.334589][ C0] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 262.334607][ C0] RIP: 0033:0x7f67580a7407 [ 262.334629][ C0] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff [ 262.334642][ C0] RSP: 002b:00007ffff53de160 EFLAGS: 00000202 ORIG_RAX: 000000000000002f [ 262.334657][ C0] RAX: ffffffffffffffda RBX: 00007f675874c880 RCX: 00007f67580a7407 [ 262.334670][ C0] RDX: 0000000000000000 RSI: 00007ffff53de1f0 RDI: 0000000000000004 [ 262.334680][ C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 [ 262.334689][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 000055cfb3026d80 [ 262.334700][ C0] R13: 00007ffff53de2b0 R14: 00007ffff53de1fc R15: 0000000000000000 [ 262.334715][ C0] 2026/05/17 13:58:20 executed programs: 200