Warning: Permanently added '10.128.0.106' (ED25519) to the list of known hosts. 2026/05/15 15:52:09 parsed 1 programs [ 115.018431][ T36] audit: type=1400 audit(1778860329.220:64): avc: denied { node_bind } for pid=302 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 116.577971][ T36] audit: type=1400 audit(1778860330.780:65): 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 [ 116.581663][ T310] cgroup: Unknown subsys name 'net' [ 116.600660][ T36] audit: type=1400 audit(1778860330.780:66): 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 [ 116.629103][ T36] audit: type=1400 audit(1778860330.810:67): 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 [ 116.629600][ T310] cgroup: Unknown subsys name 'devices' [ 116.814454][ T310] cgroup: Unknown subsys name 'hugetlb' [ 116.820115][ T310] cgroup: Unknown subsys name 'rlimit' [ 117.005557][ T36] audit: type=1400 audit(1778860331.210:68): 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 [ 117.028882][ T36] audit: type=1400 audit(1778860331.210:69): 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 [ 117.049327][ T36] audit: type=1400 audit(1778860331.210:70): 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 [ 117.069631][ T36] audit: type=1400 audit(1778860331.210:71): 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 [ 117.090011][ T36] audit: type=1400 audit(1778860331.210:72): 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 [ 117.095972][ T312] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 117.111516][ T36] audit: type=1400 audit(1778860331.210:73): 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 [ 117.146988][ T310] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 118.192614][ T319] 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. [ 118.522750][ T335] bridge0: port 1(bridge_slave_0) entered blocking state [ 118.533724][ T335] bridge0: port 1(bridge_slave_0) entered disabled state [ 118.540850][ T335] bridge_slave_0: entered allmulticast mode [ 118.547818][ T335] bridge_slave_0: entered promiscuous mode [ 118.555970][ T335] bridge0: port 2(bridge_slave_1) entered blocking state [ 118.563262][ T335] bridge0: port 2(bridge_slave_1) entered disabled state [ 118.570349][ T335] bridge_slave_1: entered allmulticast mode [ 118.577038][ T335] bridge_slave_1: entered promiscuous mode [ 118.798650][ T335] bridge0: port 2(bridge_slave_1) entered blocking state [ 118.805767][ T335] bridge0: port 2(bridge_slave_1) entered forwarding state [ 118.813211][ T335] bridge0: port 1(bridge_slave_0) entered blocking state [ 118.820266][ T335] bridge0: port 1(bridge_slave_0) entered forwarding state [ 118.951813][ T332] bridge0: port 1(bridge_slave_0) entered disabled state [ 118.962981][ T332] bridge0: port 2(bridge_slave_1) entered disabled state [ 118.975551][ T46] bridge0: port 1(bridge_slave_0) entered blocking state [ 118.982699][ T46] bridge0: port 1(bridge_slave_0) entered forwarding state [ 119.048638][ T46] bridge0: port 2(bridge_slave_1) entered blocking state [ 119.055753][ T46] bridge0: port 2(bridge_slave_1) entered forwarding state [ 119.104936][ T335] veth0_vlan: entered promiscuous mode [ 119.119609][ T335] veth1_macvtap: entered promiscuous mode 2026/05/15 15:52:13 executed programs: 0 [ 119.375884][ T12] bridge_slave_1: left allmulticast mode [ 119.381586][ T12] bridge_slave_1: left promiscuous mode [ 119.387266][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 119.394915][ T12] bridge_slave_0: left allmulticast mode [ 119.400563][ T12] bridge_slave_0: left promiscuous mode [ 119.406537][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 119.555705][ T385] bridge0: port 1(bridge_slave_0) entered blocking state [ 119.562869][ T385] bridge0: port 1(bridge_slave_0) entered disabled state [ 119.570007][ T385] bridge_slave_0: entered allmulticast mode [ 119.576384][ T385] bridge_slave_0: entered promiscuous mode [ 119.585741][ T385] bridge0: port 2(bridge_slave_1) entered blocking state [ 119.592911][ T385] bridge0: port 2(bridge_slave_1) entered disabled state [ 119.599995][ T385] bridge_slave_1: entered allmulticast mode [ 119.606366][ T385] bridge_slave_1: entered promiscuous mode [ 119.644327][ T382] bridge0: port 1(bridge_slave_0) entered blocking state [ 119.651416][ T382] bridge0: port 1(bridge_slave_0) entered disabled state [ 119.658562][ T382] bridge_slave_0: entered allmulticast mode [ 119.665152][ T382] bridge_slave_0: entered promiscuous mode [ 119.672282][ T12] veth1_macvtap: left promiscuous mode [ 119.677814][ T12] veth0_vlan: left promiscuous mode [ 119.721066][ T386] bridge0: port 1(bridge_slave_0) entered blocking state [ 119.728214][ T386] bridge0: port 1(bridge_slave_0) entered disabled state [ 119.735440][ T386] bridge_slave_0: entered allmulticast mode [ 119.741747][ T386] bridge_slave_0: entered promiscuous mode [ 119.752204][ T386] bridge0: port 2(bridge_slave_1) entered blocking state [ 119.759286][ T386] bridge0: port 2(bridge_slave_1) entered disabled state [ 119.766495][ T386] bridge_slave_1: entered allmulticast mode [ 119.773470][ T386] bridge_slave_1: entered promiscuous mode [ 119.783539][ T382] bridge0: port 2(bridge_slave_1) entered blocking state [ 119.790634][ T382] bridge0: port 2(bridge_slave_1) entered disabled state [ 119.797793][ T382] bridge_slave_1: entered allmulticast mode [ 119.804221][ T382] bridge_slave_1: entered promiscuous mode [ 119.904644][ T384] bridge0: port 1(bridge_slave_0) entered blocking state [ 119.911742][ T384] bridge0: port 1(bridge_slave_0) entered disabled state [ 119.919174][ T384] bridge_slave_0: entered allmulticast mode [ 119.925586][ T384] bridge_slave_0: entered promiscuous mode [ 119.953050][ T384] bridge0: port 2(bridge_slave_1) entered blocking state [ 119.960134][ T384] bridge0: port 2(bridge_slave_1) entered disabled state [ 119.967276][ T384] bridge_slave_1: entered allmulticast mode [ 119.973631][ T384] bridge_slave_1: entered promiscuous mode [ 120.044460][ T382] bridge0: port 2(bridge_slave_1) entered blocking state [ 120.051636][ T382] bridge0: port 2(bridge_slave_1) entered forwarding state [ 120.065928][ T386] bridge0: port 2(bridge_slave_1) entered blocking state [ 120.073051][ T386] bridge0: port 2(bridge_slave_1) entered forwarding state [ 120.080368][ T386] bridge0: port 1(bridge_slave_0) entered blocking state [ 120.087463][ T386] bridge0: port 1(bridge_slave_0) entered forwarding state [ 120.126358][ T384] bridge0: port 2(bridge_slave_1) entered blocking state [ 120.133471][ T384] bridge0: port 2(bridge_slave_1) entered forwarding state [ 120.140761][ T384] bridge0: port 1(bridge_slave_0) entered blocking state [ 120.147957][ T384] bridge0: port 1(bridge_slave_0) entered forwarding state [ 120.171551][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 120.179440][ T13] bridge0: port 1(bridge_slave_0) entered disabled state [ 120.187027][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 120.195135][ T13] bridge0: port 1(bridge_slave_0) entered disabled state [ 120.203145][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 120.234157][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 120.241246][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 120.249075][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 120.256138][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 120.264647][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 120.271688][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 120.279631][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 120.286758][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 120.296263][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 120.303383][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 120.313310][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 120.320398][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 120.343782][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 120.350874][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 120.358630][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 120.365706][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 120.386869][ T385] veth0_vlan: entered promiscuous mode [ 120.420287][ T385] veth1_macvtap: entered promiscuous mode [ 120.436008][ T386] veth0_vlan: entered promiscuous mode [ 120.448144][ T382] veth0_vlan: entered promiscuous mode [ 120.468384][ T382] veth1_macvtap: entered promiscuous mode [ 120.477486][ T384] veth0_vlan: entered promiscuous mode [ 120.497753][ T386] veth1_macvtap: entered promiscuous mode [ 120.509427][ T36] kauditd_printk_skb: 31 callbacks suppressed [ 120.509445][ T36] audit: type=1400 audit(1778860334.710:105): avc: denied { read write } for pid=399 comm="syz.1.18" 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 [ 120.544517][ T36] audit: type=1400 audit(1778860334.710:106): avc: denied { open } for pid=399 comm="syz.1.18" 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 [ 120.568809][ T36] audit: type=1400 audit(1778860334.710:107): avc: denied { ioctl } for pid=399 comm="syz.1.18" 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 [ 120.605747][ T384] veth1_macvtap: entered promiscuous mode [ 120.752355][ T376] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 120.862272][ T31] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 120.882266][ T10] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 120.892264][ T400] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 120.902311][ T376] usb 2-1: Using ep0 maxpacket: 16 [ 120.909024][ T376] usb 2-1: unable to get BOS descriptor or descriptor too short [ 120.917616][ T376] usb 2-1: config 1 interface 2 altsetting 1 endpoint 0x82 has an invalid bInterval 127, changing to 7 [ 120.931092][ T376] usb 2-1: New USB device found, idVendor=103d, idProduct=0100, bcdDevice= 0.40 [ 120.940363][ T376] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 120.948889][ T376] usb 2-1: Product: syz [ 120.953350][ T376] usb 2-1: Manufacturer: syz [ 120.957983][ T376] usb 2-1: SerialNumber: syz [ 121.022314][ T31] usb 1-1: Using ep0 maxpacket: 16 [ 121.029080][ T31] usb 1-1: unable to get BOS descriptor or descriptor too short [ 121.038091][ T31] usb 1-1: config 1 interface 2 altsetting 1 endpoint 0x82 has an invalid bInterval 127, changing to 7 [ 121.042317][ T10] usb 5-1: Using ep0 maxpacket: 16 [ 121.049308][ T400] usb 3-1: Using ep0 maxpacket: 16 [ 121.057479][ T10] usb 5-1: unable to get BOS descriptor or descriptor too short [ 121.068202][ T10] usb 5-1: config 1 interface 2 altsetting 1 endpoint 0x82 has an invalid bInterval 127, changing to 7 [ 121.068728][ T31] usb 1-1: New USB device found, idVendor=103d, idProduct=0100, bcdDevice= 0.40 [ 121.081712][ T10] usb 5-1: New USB device found, idVendor=103d, idProduct=0100, bcdDevice= 0.40 [ 121.089472][ T400] usb 3-1: unable to get BOS descriptor or descriptor too short [ 121.099325][ T10] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 121.106476][ T31] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 121.115603][ T10] usb 5-1: Product: syz [ 121.121566][ T31] usb 1-1: Product: syz [ 121.128441][ T10] usb 5-1: Manufacturer: syz [ 121.130612][ T31] usb 1-1: Manufacturer: syz [ 121.135843][ T10] usb 5-1: SerialNumber: syz [ 121.139136][ T400] usb 3-1: config 1 interface 2 altsetting 1 endpoint 0x82 has an invalid bInterval 127, changing to 7 [ 121.154975][ T31] usb 1-1: SerialNumber: syz [ 121.160904][ T400] usb 3-1: New USB device found, idVendor=103d, idProduct=0100, bcdDevice= 0.40 [ 121.170324][ T400] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 121.179908][ T376] usb 2-1: Audio class v2/v3 interfaces need an interface association [ 121.188231][ T400] usb 3-1: Product: syz [ 121.193111][ T400] usb 3-1: Manufacturer: syz [ 121.197793][ T400] usb 3-1: SerialNumber: syz [ 121.202612][ T376] snd-usb-audio 2-1:1.0: probe with driver snd-usb-audio failed with error -22 2026/05/15 15:52:19 executed programs: 16 2026/05/15 15:52:25 executed programs: 24 2026/05/15 15:52:31 executed programs: 32 2026/05/15 15:52:37 executed programs: 40 2026/05/15 15:52:43 executed programs: 48 2026/05/15 15:52:49 executed programs: 56 2026/05/15 15:52:55 executed programs: 64 2026/05/15 15:53:01 executed programs: 72 2026/05/15 15:53:07 executed programs: 80 2026/05/15 15:53:13 executed programs: 88 2026/05/15 15:53:19 executed programs: 96 2026/05/15 15:53:25 executed programs: 104 2026/05/15 15:53:31 executed programs: 112 2026/05/15 15:53:38 executed programs: 120 2026/05/15 15:53:44 executed programs: 128 2026/05/15 15:53:50 executed programs: 136 2026/05/15 15:53:56 executed programs: 144 2026/05/15 15:54:02 executed programs: 152 2026/05/15 15:54:08 executed programs: 160 2026/05/15 15:54:14 executed programs: 168 2026/05/15 15:54:20 executed programs: 176 2026/05/15 15:54:26 executed programs: 184 2026/05/15 15:54:32 executed programs: 192 [ 259.523520][ T37] INFO: task kworker/0:1:10 blocked for more than 122 seconds. [ 259.550273][ T37] Not tainted syzkaller #0 [ 259.555600][ T37] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 259.566294][ T37] task:kworker/0:1 state:D stack:0 pid:10 tgid:10 ppid:2 flags:0x00004000 [ 259.576763][ T37] Workqueue: usb_hub_wq hub_event [ 259.581850][ T37] Call Trace: [ 259.585348][ T37] [ 259.588365][ T37] __schedule+0x1399/0x1fa0 [ 259.593099][ T37] ? __sched_text_start+0x10/0x10 [ 259.598164][ T37] ? kasan_save_alloc_info+0x40/0x50 [ 259.603712][ T37] ? __kasan_kmalloc+0x96/0xb0 [ 259.608517][ T37] ? __kasan_check_write+0x18/0x20 [ 259.613877][ T37] ? kthread_data+0x54/0xc0 [ 259.618419][ T37] ? wq_worker_sleeping+0x69/0x260 [ 259.623737][ T37] ? trace_contention_begin+0xc0/0xc0 [ 259.629206][ T37] ? sysfs_do_create_link_sd+0x8a/0x120 [ 259.635004][ T37] schedule+0xc5/0x240 [ 259.639119][ T37] schedule_preempt_disabled+0x14/0x30 [ 259.644792][ T37] __mutex_lock+0x960/0x1bb0 [ 259.649488][ T37] ? __ww_mutex_lock_interruptible_slowpath+0x30/0x30 [ 259.656473][ T37] ? selinux_kernfs_init_security+0x14b/0x4b0 [ 259.662743][ T37] ? __cfi_selinux_kernfs_init_security+0x10/0x10 [ 259.669227][ T37] ? snd_usb_apply_boot_quirk+0xea6/0x2d10 [ 259.675308][ T37] ? bpf_lsm_kernfs_init_security+0xd/0x20 [ 259.681158][ T37] ? security_kernfs_init_security+0x39/0xf0 [ 259.687422][ T37] __mutex_lock_slowpath+0xe/0x20 [ 259.692617][ T37] mutex_lock+0x113/0x1d0 [ 259.696988][ T37] ? __cfi_mutex_lock+0x10/0x10 [ 259.701934][ T37] ? _raw_spin_lock_irqsave+0xc1/0x160 [ 259.707669][ T37] ? __cfi__raw_spin_lock_irqsave+0x10/0x10 [ 259.713747][ T37] usb_audio_probe+0x39d/0x1d60 [ 259.718639][ T37] ? pm_runtime_enable+0x1eb/0x2d0 [ 259.723983][ T37] ? __cfi_usb_audio_probe+0x10/0x10 [ 259.729307][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 259.735382][ T37] ? pm_runtime_enable+0x1eb/0x2d0 [ 259.740529][ T37] usb_probe_interface+0x6a9/0xc00 [ 259.745890][ T37] ? __cfi_usb_probe_interface+0x10/0x10 [ 259.751554][ T37] really_probe+0x2d8/0x890 [ 259.756311][ T37] __driver_probe_device+0x198/0x280 [ 259.761645][ T37] driver_probe_device+0x54/0x3f0 [ 259.766923][ T37] ? __device_attach_driver+0x2db/0x4b0 [ 259.772628][ T37] __device_attach_driver+0x2f1/0x4b0 [ 259.778094][ T37] bus_for_each_drv+0x264/0x300 [ 259.784706][ T37] ? __cfi___device_attach_driver+0x10/0x10 [ 259.790902][ T37] ? __cfi_bus_for_each_drv+0x10/0x10 [ 259.796442][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 259.802449][ T37] __device_attach+0x2c9/0x3c0 [ 259.807255][ T37] ? device_attach+0x40/0x40 [ 259.811886][ T37] ? _raw_spin_lock+0x92/0x120 [ 259.816962][ T37] ? __cfi__raw_spin_lock+0x10/0x10 [ 259.822327][ T37] device_initial_probe+0x1e/0x30 [ 259.827757][ T37] bus_probe_device+0x18b/0x270 [ 259.832883][ T37] device_add+0x80c/0xbf0 [ 259.837282][ T37] usb_set_configuration+0x1acf/0x20b0 [ 259.843021][ T37] usb_generic_driver_probe+0x95/0x160 [ 259.848606][ T37] usb_probe_device+0x1d1/0x380 [ 259.853725][ T37] ? __cfi_usb_probe_device+0x10/0x10 [ 259.859140][ T37] really_probe+0x2d8/0x890 [ 259.863908][ T37] __driver_probe_device+0x198/0x280 [ 259.869234][ T37] driver_probe_device+0x54/0x3f0 [ 259.874521][ T37] ? __device_attach_driver+0x2db/0x4b0 [ 259.880113][ T37] __device_attach_driver+0x2f1/0x4b0 [ 259.885749][ T37] bus_for_each_drv+0x264/0x300 [ 259.890635][ T37] ? __cfi___device_attach_driver+0x10/0x10 [ 259.896877][ T37] ? __cfi_bus_for_each_drv+0x10/0x10 [ 259.902408][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 259.908305][ T37] __device_attach+0x2c9/0x3c0 [ 259.913287][ T37] ? device_attach+0x40/0x40 [ 259.917916][ T37] ? _raw_spin_lock+0x92/0x120 [ 259.922906][ T37] ? __cfi__raw_spin_lock+0x10/0x10 [ 259.928140][ T37] device_initial_probe+0x1e/0x30 [ 259.933365][ T37] bus_probe_device+0x18b/0x270 [ 259.938261][ T37] device_add+0x80c/0xbf0 [ 259.942866][ T37] usb_new_device+0x9f8/0x15b0 [ 259.947721][ T37] ? __cfi_usb_new_device+0x10/0x10 [ 259.953109][ T37] hub_event+0x30c6/0x4700 [ 259.957570][ T37] ? __cfi_hub_event+0x10/0x10 [ 259.962590][ T37] ? pwq_dec_nr_in_flight+0x6c7/0xc60 [ 259.967999][ T37] ? _raw_spin_lock_irq+0x93/0x120 [ 259.973354][ T37] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 259.978933][ T37] process_scheduled_works+0x7d4/0x1020 [ 259.984721][ T37] worker_thread+0xc51/0x1370 [ 259.989435][ T37] ? __kasan_check_read+0x15/0x20 [ 259.994784][ T37] ? schedule+0xc5/0x240 [ 259.999095][ T37] kthread+0x2c9/0x370 [ 260.003384][ T37] ? __cfi_worker_thread+0x10/0x10 [ 260.008590][ T37] ? __cfi_kthread+0x10/0x10 [ 260.013404][ T37] ret_from_fork+0x67/0xa0 [ 260.017863][ T37] ? __cfi_kthread+0x10/0x10 [ 260.022668][ T37] ret_from_fork_asm+0x1a/0x30 [ 260.027467][ T37] [ 260.030514][ T37] INFO: task kworker/1:0:31 blocked for more than 123 seconds. [ 260.038408][ T37] Not tainted syzkaller #0 [ 260.043536][ T37] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 260.052387][ T37] task:kworker/1:0 state:D stack:0 pid:31 tgid:31 ppid:2 flags:0x00004000 [ 260.062720][ T37] Workqueue: usb_hub_wq hub_event [ 260.067804][ T37] Call Trace: [ 260.071098][ T37] [ 260.075063][ T37] __schedule+0x1399/0x1fa0 [ 260.079630][ T37] ? __sched_text_start+0x10/0x10 [ 260.085072][ T37] ? kasan_save_alloc_info+0x40/0x50 [ 260.090430][ T37] ? __kasan_kmalloc+0x96/0xb0 [ 260.095413][ T37] ? kthread_data+0x54/0xc0 [ 260.099942][ T37] ? wq_worker_sleeping+0x69/0x260 [ 260.105255][ T37] ? trace_contention_begin+0xc0/0xc0 [ 260.110732][ T37] ? sysfs_do_create_link_sd+0x8a/0x120 [ 260.116604][ T37] schedule+0xc5/0x240 [ 260.120734][ T37] schedule_preempt_disabled+0x14/0x30 [ 260.126476][ T37] __mutex_lock+0x960/0x1bb0 [ 260.131161][ T37] ? __ww_mutex_lock_interruptible_slowpath+0x30/0x30 [ 260.138151][ T37] ? selinux_kernfs_init_security+0x14b/0x4b0 [ 260.144413][ T37] ? __cfi_selinux_kernfs_init_security+0x10/0x10 [ 260.150871][ T37] ? snd_usb_apply_boot_quirk+0xea6/0x2d10 [ 260.159838][ T37] ? bpf_lsm_kernfs_init_security+0xd/0x20 [ 260.165975][ T37] ? security_kernfs_init_security+0x39/0xf0 [ 260.172063][ T37] __mutex_lock_slowpath+0xe/0x20 [ 260.177324][ T37] mutex_lock+0x113/0x1d0 [ 260.181686][ T37] ? __cfi_mutex_lock+0x10/0x10 [ 260.186798][ T37] ? _raw_spin_lock_irqsave+0xc1/0x160 [ 260.192396][ T37] ? __cfi__raw_spin_lock_irqsave+0x10/0x10 [ 260.198368][ T37] usb_audio_probe+0x39d/0x1d60 [ 260.203422][ T37] ? pm_runtime_enable+0x1eb/0x2d0 [ 260.208610][ T37] ? __cfi_usb_audio_probe+0x10/0x10 [ 260.214103][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 260.220075][ T37] ? pm_runtime_enable+0x1eb/0x2d0 [ 260.225410][ T37] usb_probe_interface+0x6a9/0xc00 [ 260.230603][ T37] ? __cfi_usb_probe_interface+0x10/0x10 [ 260.236513][ T37] really_probe+0x2d8/0x890 [ 260.241269][ T37] __driver_probe_device+0x198/0x280 [ 260.246815][ T37] driver_probe_device+0x54/0x3f0 [ 260.251931][ T37] ? __device_attach_driver+0x2db/0x4b0 [ 260.257704][ T37] __device_attach_driver+0x2f1/0x4b0 [ 260.263257][ T37] bus_for_each_drv+0x264/0x300 [ 260.268146][ T37] ? __cfi___device_attach_driver+0x10/0x10 [ 260.274293][ T37] ? __cfi_bus_for_each_drv+0x10/0x10 [ 260.279718][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 260.285861][ T37] __device_attach+0x2c9/0x3c0 [ 260.290668][ T37] ? device_attach+0x40/0x40 [ 260.295500][ T37] ? _raw_spin_lock+0x92/0x120 [ 260.300397][ T37] ? __cfi__raw_spin_lock+0x10/0x10 [ 260.305834][ T37] device_initial_probe+0x1e/0x30 [ 260.311060][ T37] bus_probe_device+0x18b/0x270 [ 260.316133][ T37] device_add+0x80c/0xbf0 [ 260.320518][ T37] usb_set_configuration+0x1acf/0x20b0 [ 260.326251][ T37] usb_generic_driver_probe+0x95/0x160 [ 260.331742][ T37] usb_probe_device+0x1d1/0x380 [ 260.336851][ T37] ? __cfi_usb_probe_device+0x10/0x10 [ 260.342384][ T37] really_probe+0x2d8/0x890 [ 260.346983][ T37] __driver_probe_device+0x198/0x280 [ 260.352502][ T37] driver_probe_device+0x54/0x3f0 [ 260.357813][ T37] ? __device_attach_driver+0x2db/0x4b0 [ 260.363513][ T37] __device_attach_driver+0x2f1/0x4b0 [ 260.368978][ T37] bus_for_each_drv+0x264/0x300 [ 260.374035][ T37] ? __cfi___device_attach_driver+0x10/0x10 [ 260.380020][ T37] ? __cfi_bus_for_each_drv+0x10/0x10 [ 260.385601][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 260.391498][ T37] __device_attach+0x2c9/0x3c0 [ 260.396479][ T37] ? device_attach+0x40/0x40 [ 260.401115][ T37] ? _raw_spin_lock+0x92/0x120 [ 260.406205][ T37] ? __cfi__raw_spin_lock+0x10/0x10 [ 260.411561][ T37] device_initial_probe+0x1e/0x30 [ 260.416855][ T37] bus_probe_device+0x18b/0x270 [ 260.421738][ T37] device_add+0x80c/0xbf0 [ 260.426270][ T37] usb_new_device+0x9f8/0x15b0 [ 260.431139][ T37] ? __cfi_usb_new_device+0x10/0x10 [ 260.436567][ T37] hub_event+0x30c6/0x4700 [ 260.441024][ T37] ? __cfi_hub_event+0x10/0x10 [ 260.446020][ T37] ? pwq_dec_nr_in_flight+0x6c7/0xc60 [ 260.451426][ T37] ? _raw_spin_lock_irq+0x93/0x120 [ 260.456781][ T37] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 260.462464][ T37] process_scheduled_works+0x7d4/0x1020 [ 260.468138][ T37] worker_thread+0xc51/0x1370 [ 260.473055][ T37] kthread+0x2c9/0x370 [ 260.477166][ T37] ? __cfi_worker_thread+0x10/0x10 [ 260.483445][ T37] ? __cfi_kthread+0x10/0x10 [ 260.488180][ T37] ret_from_fork+0x67/0xa0 [ 260.492849][ T37] ? __cfi_kthread+0x10/0x10 [ 260.497471][ T37] ret_from_fork_asm+0x1a/0x30 [ 260.502481][ T37] [ 260.506030][ T37] INFO: task kworker/1:3:400 blocked for more than 123 seconds. [ 260.515879][ T37] Not tainted syzkaller #0 [ 260.520840][ T37] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 260.529742][ T37] task:kworker/1:3 state:D stack:0 pid:400 tgid:400 ppid:2 flags:0x00004000 [ 260.540100][ T37] Workqueue: usb_hub_wq hub_event [ 260.545282][ T37] Call Trace: [ 260.548671][ T37] [ 260.551672][ T37] __schedule+0x1399/0x1fa0 [ 260.556536][ T37] ? __sched_text_start+0x10/0x10 [ 260.561612][ T37] ? kthread_data+0x54/0xc0 [ 260.566375][ T37] ? wq_worker_sleeping+0x69/0x260 [ 260.571677][ T37] ? trace_contention_begin+0xc0/0xc0 [ 260.577311][ T37] ? sysfs_do_create_link_sd+0x8a/0x120 [ 260.583019][ T37] schedule+0xc5/0x240 [ 260.587124][ T37] schedule_preempt_disabled+0x14/0x30 [ 260.592904][ T37] __mutex_lock+0x960/0x1bb0 [ 260.597539][ T37] ? __ww_mutex_lock_interruptible_slowpath+0x30/0x30 [ 260.604571][ T37] ? selinux_kernfs_init_security+0x14b/0x4b0 [ 260.610681][ T37] ? __cfi_selinux_kernfs_init_security+0x10/0x10 [ 260.617352][ T37] ? snd_usb_apply_boot_quirk+0xea6/0x2d10 [ 260.623324][ T37] ? bpf_lsm_kernfs_init_security+0xd/0x20 [ 260.629225][ T37] ? security_kernfs_init_security+0x39/0xf0 [ 260.635419][ T37] __mutex_lock_slowpath+0xe/0x20 [ 260.640532][ T37] mutex_lock+0x113/0x1d0 [ 260.645069][ T37] ? __cfi_mutex_lock+0x10/0x10 [ 260.649953][ T37] ? _raw_spin_lock_irqsave+0xc1/0x160 [ 260.655659][ T37] ? __cfi__raw_spin_lock_irqsave+0x10/0x10 [ 260.661582][ T37] usb_audio_probe+0x39d/0x1d60 [ 260.666680][ T37] ? pm_runtime_enable+0x1eb/0x2d0 [ 260.671824][ T37] ? __cfi_usb_audio_probe+0x10/0x10 [ 260.677436][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 260.683389][ T37] ? pm_runtime_enable+0x1eb/0x2d0 [ 260.688576][ T37] usb_probe_interface+0x6a9/0xc00 [ 260.693895][ T37] ? __cfi_usb_probe_interface+0x10/0x10 [ 260.699616][ T37] really_probe+0x2d8/0x890 [ 260.704415][ T37] __driver_probe_device+0x198/0x280 [ 260.709784][ T37] driver_probe_device+0x54/0x3f0 [ 260.715015][ T37] ? __device_attach_driver+0x2db/0x4b0 [ 260.720643][ T37] __device_attach_driver+0x2f1/0x4b0 [ 260.726218][ T37] bus_for_each_drv+0x264/0x300 [ 260.731167][ T37] ? __cfi___device_attach_driver+0x10/0x10 [ 260.737273][ T37] ? __cfi_bus_for_each_drv+0x10/0x10 [ 260.742827][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 260.748678][ T37] __device_attach+0x2c9/0x3c0 [ 260.753695][ T37] ? device_attach+0x40/0x40 [ 260.758322][ T37] ? _raw_spin_lock+0x92/0x120 [ 260.763282][ T37] ? __cfi__raw_spin_lock+0x10/0x10 [ 260.768563][ T37] device_initial_probe+0x1e/0x30 [ 260.773804][ T37] bus_probe_device+0x18b/0x270 [ 260.778730][ T37] device_add+0x80c/0xbf0 [ 260.783254][ T37] usb_set_configuration+0x1acf/0x20b0 [ 260.788755][ T37] usb_generic_driver_probe+0x95/0x160 [ 260.794454][ T37] usb_probe_device+0x1d1/0x380 [ 260.799395][ T37] ? __cfi_usb_probe_device+0x10/0x10 [ 260.804959][ T37] really_probe+0x2d8/0x890 [ 260.809548][ T37] __driver_probe_device+0x198/0x280 [ 260.815030][ T37] driver_probe_device+0x54/0x3f0 [ 260.820143][ T37] ? __device_attach_driver+0x2db/0x4b0 [ 260.827265][ T37] __device_attach_driver+0x2f1/0x4b0 [ 260.832969][ T37] bus_for_each_drv+0x264/0x300 [ 260.837855][ T37] ? __cfi___device_attach_driver+0x10/0x10 [ 260.844020][ T37] ? __cfi_bus_for_each_drv+0x10/0x10 [ 260.849435][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 260.855489][ T37] __device_attach+0x2c9/0x3c0 [ 260.860294][ T37] ? device_attach+0x40/0x40 [ 260.865085][ T37] ? _raw_spin_lock+0x92/0x120 [ 260.869928][ T37] ? __cfi__raw_spin_lock+0x10/0x10 [ 260.875342][ T37] device_initial_probe+0x1e/0x30 [ 260.880572][ T37] bus_probe_device+0x18b/0x270 [ 260.885666][ T37] device_add+0x80c/0xbf0 [ 260.890036][ T37] usb_new_device+0x9f8/0x15b0 [ 260.895057][ T37] ? __cfi_usb_new_device+0x10/0x10 [ 260.900297][ T37] hub_event+0x30c6/0x4700 [ 260.905001][ T37] ? __cfi_hub_event+0x10/0x10 [ 260.909871][ T37] ? pwq_dec_nr_in_flight+0x6c7/0xc60 [ 260.915569][ T37] ? _raw_spin_lock_irq+0x93/0x120 [ 260.920750][ T37] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 260.926535][ T37] process_scheduled_works+0x7d4/0x1020 [ 260.932249][ T37] worker_thread+0xc51/0x1370 [ 260.937020][ T37] ? schedule+0xc5/0x240 [ 260.941304][ T37] kthread+0x2c9/0x370 [ 260.945677][ T37] ? __cfi_worker_thread+0x10/0x10 [ 260.950864][ T37] ? __cfi_kthread+0x10/0x10 [ 260.955765][ T37] ret_from_fork+0x67/0xa0 [ 260.960230][ T37] ? __cfi_kthread+0x10/0x10 [ 260.965077][ T37] ret_from_fork_asm+0x1a/0x30 [ 260.969910][ T37] [ 260.973190][ T37] NMI backtrace for cpu 0 [ 260.973207][ T37] CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 2a773d25b07a50942adc40786a7b0622bdaa5377 [ 260.973243][ T37] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 260.973257][ T37] Call Trace: [ 260.973264][ T37] [ 260.973272][ T37] __dump_stack+0x21/0x30 [ 260.973307][ T37] dump_stack_lvl+0x140/0x1c0 [ 260.973346][ T37] ? __cfi_dump_stack_lvl+0x10/0x10 [ 260.973380][ T37] dump_stack+0x19/0x20 [ 260.973411][ T37] nmi_cpu_backtrace+0x2ba/0x2d0 [ 260.973433][ T37] ? rcu_read_unlock_special+0x14d/0x440 [ 260.973466][ T37] ? __cfi_nmi_cpu_backtrace+0x10/0x10 [ 260.973487][ T37] ? sched_show_task+0x371/0x530 [ 260.973518][ T37] ? __rcu_read_unlock+0xc0/0xc0 [ 260.973549][ T37] ? __cfi_nmi_raise_cpu_backtrace+0x10/0x10 [ 260.973581][ T37] ? __cfi_nmi_raise_cpu_backtrace+0x10/0x10 [ 260.973612][ T37] nmi_trigger_cpumask_backtrace+0x142/0x2c0 [ 260.973634][ T37] arch_trigger_cpumask_backtrace+0x14/0x20 [ 260.973666][ T37] watchdog+0xdad/0xf00 [ 260.973689][ T37] ? __kasan_check_write+0x18/0x20 [ 260.973714][ T37] ? __cfi_watchdog+0x10/0x10 [ 260.973737][ T37] ? __kasan_check_read+0x15/0x20 [ 260.973758][ T37] ? __kthread_parkme+0x137/0x180 [ 260.973781][ T37] ? schedule+0xc5/0x240 [ 260.973804][ T37] kthread+0x2c9/0x370 [ 260.973829][ T37] ? __cfi_watchdog+0x10/0x10 [ 260.973852][ T37] ? __cfi_kthread+0x10/0x10 [ 260.973877][ T37] ret_from_fork+0x67/0xa0 [ 260.973896][ T37] ? __cfi_kthread+0x10/0x10 [ 260.973922][ T37] ret_from_fork_asm+0x1a/0x30 [ 260.973946][ T37] [ 260.973954][ T37] Sending NMI from CPU 0 to CPUs 1: [ 261.138148][ C1] NMI backtrace for cpu 1 [ 261.138168][ C1] CPU: 1 UID: 0 PID: 92 Comm: syslogd Not tainted syzkaller #0 2a773d25b07a50942adc40786a7b0622bdaa5377 [ 261.138189][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 261.138199][ C1] RIP: 0010:__virt_addr_valid+0xc/0x380 [ 261.138224][ C1] Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc b8 b7 93 dd c9 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 89 e5 41 57 41 56 <41> 54 53 48 89 fb e8 69 ad 41 00 48 bf ff ff ff 7f ff ff ff ff 48 [ 261.138237][ C1] RSP: 0018:ffffc900007ef760 EFLAGS: 00000293 [ 261.138251][ C1] RAX: ffffffff81e95cc4 RBX: 1ffff920000fdef4 RCX: ffff88810bb84c00 [ 261.138264][ C1] RDX: 0000000000000000 RSI: ffffffff876cb4e0 RDI: ffff8881282fe400 [ 261.138275][ C1] RBP: ffffc900007ef770 R08: ffff88810bb84c00 R09: 0000000000000002 [ 261.138285][ C1] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ 261.138295][ C1] R13: dffffc0000000000 R14: ffff8881282fe400 R15: 0000000000000046 [ 261.138306][ C1] FS: 00007f9dc9331c80(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 261.138320][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 261.138332][ C1] CR2: 00007fb551dea2f8 CR3: 000000010c73e000 CR4: 00000000003526b0 [ 261.138346][ C1] Call Trace: [ 261.138351][ C1] [ 261.138357][ C1] __check_object_size+0x16c/0x830 [ 261.138375][ C1] ? __cfi___check_object_size+0x10/0x10 [ 261.138391][ C1] ? __skb_try_recv_from_queue+0x29f/0x6f0 [ 261.138414][ C1] __skb_datagram_iter+0xf4/0x930 [ 261.138435][ C1] ? __cfi_simple_copy_to_iter+0x10/0x10 [ 261.138457][ C1] skb_copy_datagram_iter+0x44/0x160 [ 261.138478][ C1] __unix_dgram_recvmsg+0x6b5/0xe20 [ 261.138499][ C1] ? __cfi___unix_dgram_recvmsg+0x10/0x10 [ 261.138517][ C1] ? avc_has_perm_noaudit+0x28a/0x360 [ 261.138536][ C1] ? avc_has_perm+0x155/0x240 [ 261.138553][ C1] unix_dgram_recvmsg+0xce/0xf0 [ 261.138574][ C1] ? __cfi_unix_dgram_recvmsg+0x10/0x10 [ 261.138594][ C1] sock_recvmsg+0x18c/0x1e0 [ 261.138613][ C1] sock_read_iter+0x252/0x320 [ 261.138629][ C1] ? __cfi_sock_read_iter+0x10/0x10 [ 261.138645][ C1] ? __kasan_check_write+0x18/0x20 [ 261.138660][ C1] ? _raw_spin_lock_irq+0x93/0x120 [ 261.138675][ C1] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 261.138691][ C1] vfs_read+0x657/0xcb0 [ 261.138707][ C1] ? __cfi_vfs_read+0x10/0x10 [ 261.138721][ C1] ? sched_clock+0x44/0x60 [ 261.138743][ C1] ? __kasan_check_read+0x15/0x20 [ 261.138758][ C1] ksys_read+0x145/0x260 [ 261.138772][ C1] ? xfd_validate_state+0x68/0x140 [ 261.138795][ C1] ? __cfi_ksys_read+0x10/0x10 [ 261.138810][ C1] ? __kasan_check_write+0x18/0x20 [ 261.138825][ C1] ? fpregs_restore_userregs+0x11c/0x260 [ 261.138844][ C1] __x64_sys_read+0x7f/0x90 [ 261.138859][ C1] x64_sys_call+0x2638/0x2ee0 [ 261.138875][ C1] do_syscall_64+0x57/0xf0 [ 261.138889][ C1] ? clear_bhb_loop+0x50/0xa0 [ 261.138907][ C1] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 261.138924][ C1] RIP: 0033:0x7f9dc9481407 [ 261.138945][ C1] 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 [ 261.138957][ C1] RSP: 002b:00007fffe80765f0 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 261.138989][ C1] RAX: ffffffffffffffda RBX: 00007f9dc9331c80 RCX: 00007f9dc9481407 [ 261.139000][ C1] RDX: 00000000000000ff RSI: 000055e5b79f2300 RDI: 0000000000000000 [ 261.139027][ C1] RBP: 000055e5b79f22c0 R08: 0000000000000000 R09: 0000000000000000 [ 261.139037][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 000055e5b79f2348 [ 261.139047][ C1] R13: 0000000000000000 R14: 000055e5b79f2300 R15: 000055e58f7bcd98 [ 261.139061][ C1] 2026/05/15 15:54:38 executed programs: 200