Warning: Permanently added '10.128.0.70' (ED25519) to the list of known hosts. 2026/05/18 13:35:08 parsed 1 programs [ 156.855059][ T36] audit: type=1400 audit(1779111308.640:64): 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 [ 158.003050][ T36] audit: type=1400 audit(1779111309.790:65): avc: denied { mounton } for pid=308 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 [ 158.004470][ T308] cgroup: Unknown subsys name 'net' [ 158.025908][ T36] audit: type=1400 audit(1779111309.790:66): avc: denied { mount } for pid=308 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 [ 158.053266][ T36] audit: type=1400 audit(1779111309.810:67): avc: denied { unmount } for pid=308 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 158.053426][ T308] cgroup: Unknown subsys name 'devices' [ 158.214472][ T308] cgroup: Unknown subsys name 'hugetlb' [ 158.220115][ T308] cgroup: Unknown subsys name 'rlimit' [ 158.378885][ T36] audit: type=1400 audit(1779111310.160:68): avc: denied { setattr } for pid=308 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 [ 158.402172][ T36] audit: type=1400 audit(1779111310.160:69): avc: denied { create } for pid=308 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 [ 158.422640][ T36] audit: type=1400 audit(1779111310.160:70): avc: denied { write } for pid=308 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 158.431785][ T313] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 158.443043][ T36] audit: type=1400 audit(1779111310.160:71): avc: denied { read } for pid=308 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 158.471934][ T36] audit: type=1400 audit(1779111310.160:72): avc: denied { sys_module } for pid=308 comm="syz-executor" capability=16 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability permissive=1 [ 158.479665][ T308] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 158.493091][ T36] audit: type=1400 audit(1779111310.160:73): avc: denied { mounton } for pid=308 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 [ 159.544017][ 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. [ 159.684765][ T323] bridge0: port 1(bridge_slave_0) entered blocking state [ 159.692023][ T323] bridge0: port 1(bridge_slave_0) entered disabled state [ 159.699200][ T323] bridge_slave_0: entered allmulticast mode [ 159.705730][ T323] bridge_slave_0: entered promiscuous mode [ 159.713294][ T323] bridge0: port 2(bridge_slave_1) entered blocking state [ 159.720434][ T323] bridge0: port 2(bridge_slave_1) entered disabled state [ 159.727564][ T323] bridge_slave_1: entered allmulticast mode [ 159.733810][ T323] bridge_slave_1: entered promiscuous mode [ 159.956314][ T323] bridge0: port 2(bridge_slave_1) entered blocking state [ 159.963441][ T323] bridge0: port 2(bridge_slave_1) entered forwarding state [ 159.970760][ T323] bridge0: port 1(bridge_slave_0) entered blocking state [ 159.977850][ T323] bridge0: port 1(bridge_slave_0) entered forwarding state [ 160.110865][ T331] bridge0: port 2(bridge_slave_1) entered disabled state [ 160.138294][ T356] bridge0: port 2(bridge_slave_1) entered blocking state [ 160.145429][ T356] bridge0: port 2(bridge_slave_1) entered forwarding state [ 160.301396][ T323] veth0_vlan: entered promiscuous mode [ 160.386156][ T323] veth1_macvtap: entered promiscuous mode 2026/05/18 13:35:12 executed programs: 0 [ 160.785178][ T386] bridge0: port 1(bridge_slave_0) entered blocking state [ 160.792699][ T386] bridge0: port 1(bridge_slave_0) entered disabled state [ 160.799801][ T386] bridge_slave_0: entered allmulticast mode [ 160.806203][ T386] bridge_slave_0: entered promiscuous mode [ 160.817933][ T386] bridge0: port 2(bridge_slave_1) entered blocking state [ 160.825058][ T386] bridge0: port 2(bridge_slave_1) entered disabled state [ 160.832507][ T386] bridge_slave_1: entered allmulticast mode [ 160.838977][ T386] bridge_slave_1: entered promiscuous mode [ 160.855610][ T13] bridge_slave_1: left allmulticast mode [ 160.861298][ T13] bridge_slave_1: left promiscuous mode [ 160.867274][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 160.874898][ T13] bridge_slave_0: left allmulticast mode [ 160.880572][ T13] bridge_slave_0: left promiscuous mode [ 160.886383][ T13] bridge0: port 1(bridge_slave_0) entered disabled state [ 161.000501][ T382] bridge0: port 1(bridge_slave_0) entered blocking state [ 161.007634][ T382] bridge0: port 1(bridge_slave_0) entered disabled state [ 161.014906][ T382] bridge_slave_0: entered allmulticast mode [ 161.021098][ T382] bridge_slave_0: entered promiscuous mode [ 161.045746][ T13] veth1_macvtap: left promiscuous mode [ 161.051524][ T13] veth0_vlan: left promiscuous mode [ 161.085163][ T382] bridge0: port 2(bridge_slave_1) entered blocking state [ 161.092316][ T382] bridge0: port 2(bridge_slave_1) entered disabled state [ 161.099400][ T382] bridge_slave_1: entered allmulticast mode [ 161.105768][ T382] bridge_slave_1: entered promiscuous mode [ 161.146613][ T385] bridge0: port 1(bridge_slave_0) entered blocking state [ 161.153744][ T385] bridge0: port 1(bridge_slave_0) entered disabled state [ 161.160827][ T385] bridge_slave_0: entered allmulticast mode [ 161.167566][ T385] bridge_slave_0: entered promiscuous mode [ 161.177637][ T385] bridge0: port 2(bridge_slave_1) entered blocking state [ 161.184756][ T385] bridge0: port 2(bridge_slave_1) entered disabled state [ 161.191853][ T385] bridge_slave_1: entered allmulticast mode [ 161.198300][ T385] bridge_slave_1: entered promiscuous mode [ 161.235336][ T381] bridge0: port 1(bridge_slave_0) entered blocking state [ 161.242442][ T381] bridge0: port 1(bridge_slave_0) entered disabled state [ 161.249500][ T381] bridge_slave_0: entered allmulticast mode [ 161.256010][ T381] bridge_slave_0: entered promiscuous mode [ 161.265774][ T381] bridge0: port 2(bridge_slave_1) entered blocking state [ 161.272909][ T381] bridge0: port 2(bridge_slave_1) entered disabled state [ 161.279999][ T381] bridge_slave_1: entered allmulticast mode [ 161.286293][ T381] bridge_slave_1: entered promiscuous mode [ 161.377558][ T386] bridge0: port 2(bridge_slave_1) entered blocking state [ 161.384829][ T386] bridge0: port 2(bridge_slave_1) entered forwarding state [ 161.392280][ T386] bridge0: port 1(bridge_slave_0) entered blocking state [ 161.399427][ T386] bridge0: port 1(bridge_slave_0) entered forwarding state [ 161.431671][ T382] bridge0: port 2(bridge_slave_1) entered blocking state [ 161.438794][ T382] bridge0: port 2(bridge_slave_1) entered forwarding state [ 161.446107][ T382] bridge0: port 1(bridge_slave_0) entered blocking state [ 161.453340][ T382] bridge0: port 1(bridge_slave_0) entered forwarding state [ 161.476913][ T385] bridge0: port 2(bridge_slave_1) entered blocking state [ 161.484049][ T385] bridge0: port 2(bridge_slave_1) entered forwarding state [ 161.491342][ T385] bridge0: port 1(bridge_slave_0) entered blocking state [ 161.498497][ T385] bridge0: port 1(bridge_slave_0) entered forwarding state [ 161.529558][ T381] bridge0: port 2(bridge_slave_1) entered blocking state [ 161.536678][ T381] bridge0: port 2(bridge_slave_1) entered forwarding state [ 161.544006][ T381] bridge0: port 1(bridge_slave_0) entered blocking state [ 161.551058][ T381] bridge0: port 1(bridge_slave_0) entered forwarding state [ 161.578329][ T13] bridge0: port 1(bridge_slave_0) entered disabled state [ 161.585959][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 161.593791][ T13] bridge0: port 1(bridge_slave_0) entered disabled state [ 161.600961][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 161.608315][ T13] bridge0: port 1(bridge_slave_0) entered disabled state [ 161.615773][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 161.643880][ T13] bridge0: port 1(bridge_slave_0) entered blocking state [ 161.650971][ T13] bridge0: port 1(bridge_slave_0) entered forwarding state [ 161.659041][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 161.666145][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state [ 161.679890][ T13] bridge0: port 1(bridge_slave_0) entered blocking state [ 161.686986][ T13] bridge0: port 1(bridge_slave_0) entered forwarding state [ 161.694569][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 161.701594][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state [ 161.727615][ T13] bridge0: port 1(bridge_slave_0) entered blocking state [ 161.734708][ T13] bridge0: port 1(bridge_slave_0) entered forwarding state [ 161.742698][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 161.749945][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state [ 161.777894][ T382] veth0_vlan: entered promiscuous mode [ 161.785581][ T386] veth0_vlan: entered promiscuous mode [ 161.807736][ T385] veth0_vlan: entered promiscuous mode [ 161.819968][ T386] veth1_macvtap: entered promiscuous mode [ 161.831816][ T382] veth1_macvtap: entered promiscuous mode [ 161.840496][ T381] veth0_vlan: entered promiscuous mode [ 161.857006][ T385] veth1_macvtap: entered promiscuous mode [ 161.881425][ T381] veth1_macvtap: entered promiscuous mode [ 161.905243][ T36] kauditd_printk_skb: 31 callbacks suppressed [ 161.905262][ T36] audit: type=1400 audit(1779111313.690:105): 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 [ 161.937400][ T36] audit: type=1400 audit(1779111313.690:106): 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 [ 161.964858][ T36] audit: type=1400 audit(1779111313.690:107): 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 [ 162.142220][ T66] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 162.192267][ T31] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 162.252178][ T352] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 162.252198][ T404] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 162.292248][ T66] usb 2-1: Using ep0 maxpacket: 16 [ 162.299024][ T66] usb 2-1: unable to get BOS descriptor or descriptor too short [ 162.307813][ T66] usb 2-1: config 1 interface 2 altsetting 1 endpoint 0x82 has an invalid bInterval 127, changing to 7 [ 162.320625][ T66] usb 2-1: New USB device found, idVendor=103d, idProduct=0100, bcdDevice= 0.40 [ 162.330175][ T66] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 162.338380][ T66] usb 2-1: Product: syz [ 162.342626][ T66] usb 2-1: Manufacturer: syz [ 162.347258][ T66] usb 2-1: SerialNumber: syz [ 162.352163][ T31] usb 4-1: Using ep0 maxpacket: 16 [ 162.359272][ T31] usb 4-1: unable to get BOS descriptor or descriptor too short [ 162.367944][ T31] usb 4-1: config 1 interface 2 altsetting 1 endpoint 0x82 has an invalid bInterval 127, changing to 7 [ 162.380475][ T31] usb 4-1: New USB device found, idVendor=103d, idProduct=0100, bcdDevice= 0.40 [ 162.389626][ T31] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 162.397901][ T31] usb 4-1: Product: syz [ 162.402249][ T31] usb 4-1: Manufacturer: syz [ 162.406886][ T31] usb 4-1: SerialNumber: syz [ 162.422160][ T352] usb 3-1: Using ep0 maxpacket: 16 [ 162.422273][ T404] usb 5-1: Using ep0 maxpacket: 16 [ 162.423746][ T352] usb 3-1: unable to get BOS descriptor or descriptor too short [ 162.428828][ T404] usb 5-1: unable to get BOS descriptor or descriptor too short [ 162.434061][ T352] usb 3-1: config 1 interface 2 altsetting 1 endpoint 0x82 has an invalid bInterval 127, changing to 7 [ 162.441071][ T404] usb 5-1: config 1 interface 2 altsetting 1 endpoint 0x82 has an invalid bInterval 127, changing to 7 [ 162.461694][ T352] usb 3-1: New USB device found, idVendor=103d, idProduct=0100, bcdDevice= 0.40 [ 162.472499][ T404] usb 5-1: New USB device found, idVendor=103d, idProduct=0100, bcdDevice= 0.40 [ 162.479674][ T352] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 162.488709][ T404] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 162.496952][ T352] usb 3-1: Product: syz [ 162.505186][ T404] usb 5-1: Product: syz [ 162.509165][ T352] usb 3-1: Manufacturer: syz [ 162.513274][ T404] usb 5-1: Manufacturer: syz [ 162.517851][ T352] usb 3-1: SerialNumber: syz [ 162.524315][ T404] usb 5-1: SerialNumber: syz [ 162.560074][ T66] usb 2-1: Audio class v2/v3 interfaces need an interface association [ 162.568402][ T66] snd-usb-audio 2-1:1.0: probe with driver snd-usb-audio failed with error -22 2026/05/18 13:35:18 executed programs: 16 2026/05/18 13:35:24 executed programs: 24 2026/05/18 13:35:30 executed programs: 32 2026/05/18 13:35:36 executed programs: 40 2026/05/18 13:35:42 executed programs: 48 2026/05/18 13:35:48 executed programs: 56 2026/05/18 13:35:54 executed programs: 64 2026/05/18 13:36:00 executed programs: 72 2026/05/18 13:36:06 executed programs: 80 2026/05/18 13:36:12 executed programs: 88 2026/05/18 13:36:18 executed programs: 96 2026/05/18 13:36:24 executed programs: 104 2026/05/18 13:36:30 executed programs: 112 2026/05/18 13:36:36 executed programs: 120 2026/05/18 13:36:42 executed programs: 128 2026/05/18 13:36:49 executed programs: 136 2026/05/18 13:36:55 executed programs: 144 2026/05/18 13:37:01 executed programs: 152 2026/05/18 13:37:07 executed programs: 160 2026/05/18 13:37:13 executed programs: 168 2026/05/18 13:37:19 executed programs: 176 2026/05/18 13:37:25 executed programs: 184 2026/05/18 13:37:31 executed programs: 192 [ 301.084042][ T37] INFO: task kworker/1:0:31 blocked for more than 122 seconds. [ 301.094158][ T37] Not tainted syzkaller #0 [ 301.099129][ T37] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 301.108081][ T37] task:kworker/1:0 state:D stack:0 pid:31 tgid:31 ppid:2 flags:0x00004000 [ 301.118438][ T37] Workqueue: usb_hub_wq hub_event [ 301.123619][ T37] Call Trace: [ 301.126929][ T37] [ 301.129973][ T37] __schedule+0x14ce/0x2100 [ 301.134646][ T37] ? __sched_text_start+0x10/0x10 [ 301.139696][ T37] ? kasan_save_alloc_info+0x40/0x50 [ 301.145205][ T37] ? __kasan_kmalloc+0x96/0xb0 [ 301.150003][ T37] ? __kasan_check_write+0x18/0x20 [ 301.155348][ T37] ? kthread_data+0x54/0xc0 [ 301.159873][ T37] ? wq_worker_sleeping+0x69/0x260 [ 301.165289][ T37] ? trace_contention_begin+0xc0/0xc0 [ 301.170771][ T37] ? sysfs_do_create_link_sd+0x8a/0x120 [ 301.176598][ T37] schedule+0xc5/0x240 [ 301.180715][ T37] schedule_preempt_disabled+0x14/0x30 [ 301.186426][ T37] __mutex_lock+0x960/0x1bc0 [ 301.191208][ T37] ? __ww_mutex_lock_interruptible_slowpath+0x30/0x30 [ 301.198140][ T37] ? selinux_kernfs_init_security+0x14b/0x4b0 [ 301.204418][ T37] ? __cfi_selinux_kernfs_init_security+0x10/0x10 [ 301.210866][ T37] ? snd_usb_apply_boot_quirk+0xea6/0x2d10 [ 301.216893][ T37] ? bpf_lsm_kernfs_init_security+0xd/0x20 [ 301.222813][ T37] ? security_kernfs_init_security+0x39/0xf0 [ 301.228916][ T37] __mutex_lock_slowpath+0xe/0x20 [ 301.234168][ T37] mutex_lock+0x113/0x1d0 [ 301.238520][ T37] ? __cfi_mutex_lock+0x10/0x10 [ 301.243662][ T37] ? _raw_spin_lock_irqsave+0xc1/0x160 [ 301.249144][ T37] ? __cfi__raw_spin_lock_irqsave+0x10/0x10 [ 301.255235][ T37] usb_audio_probe+0x39d/0x1d60 [ 301.260115][ T37] ? pm_runtime_enable+0x1eb/0x2d0 [ 301.265427][ T37] ? __cfi_usb_audio_probe+0x10/0x10 [ 301.270739][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 301.276740][ T37] ? pm_runtime_enable+0x1eb/0x2d0 [ 301.281879][ T37] usb_probe_interface+0x6ac/0xc00 [ 301.287396][ T37] ? __cfi_usb_probe_interface+0x10/0x10 [ 301.293136][ T37] really_probe+0x2d8/0x890 [ 301.297752][ T37] __driver_probe_device+0x198/0x280 [ 301.303235][ T37] driver_probe_device+0x54/0x3f0 [ 301.308448][ T37] ? __device_attach_driver+0x2db/0x4b0 [ 301.314188][ T37] __device_attach_driver+0x2f1/0x4b0 [ 301.319703][ T37] bus_for_each_drv+0x264/0x300 [ 301.324787][ T37] ? __cfi___device_attach_driver+0x10/0x10 [ 301.330818][ T37] ? __cfi_bus_for_each_drv+0x10/0x10 [ 301.336335][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 301.342414][ T37] __device_attach+0x2c9/0x3c0 [ 301.347205][ T37] ? device_attach+0x40/0x40 [ 301.351811][ T37] ? _raw_spin_lock+0x92/0x120 [ 301.356829][ T37] ? __cfi__raw_spin_lock+0x10/0x10 [ 301.362134][ T37] device_initial_probe+0x1e/0x30 [ 301.367276][ T37] bus_probe_device+0x18b/0x270 [ 301.372262][ T37] device_add+0x80c/0xbf0 [ 301.376640][ T37] usb_set_configuration+0x1acf/0x20b0 [ 301.382329][ T37] usb_generic_driver_probe+0x95/0x160 [ 301.387810][ T37] usb_probe_device+0x1d1/0x380 [ 301.392873][ T37] ? __cfi_usb_probe_device+0x10/0x10 [ 301.398442][ T37] really_probe+0x2d8/0x890 [ 301.403159][ T37] __driver_probe_device+0x198/0x280 [ 301.408701][ T37] driver_probe_device+0x54/0x3f0 [ 301.413962][ T37] ? __device_attach_driver+0x2db/0x4b0 [ 301.419532][ T37] __device_attach_driver+0x2f1/0x4b0 [ 301.425132][ T37] bus_for_each_drv+0x264/0x300 [ 301.430003][ T37] ? __cfi___device_attach_driver+0x10/0x10 [ 301.436112][ T37] ? __cfi_bus_for_each_drv+0x10/0x10 [ 301.441590][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 301.447625][ T37] __device_attach+0x2c9/0x3c0 [ 301.452596][ T37] ? device_attach+0x40/0x40 [ 301.457210][ T37] ? _raw_spin_lock+0x92/0x120 [ 301.462217][ T37] ? __cfi__raw_spin_lock+0x10/0x10 [ 301.467452][ T37] device_initial_probe+0x1e/0x30 [ 301.472709][ T37] bus_probe_device+0x18b/0x270 [ 301.477840][ T37] device_add+0x80c/0xbf0 [ 301.482327][ T37] usb_new_device+0x9f8/0x15b0 [ 301.487294][ T37] ? __cfi_usb_new_device+0x10/0x10 [ 301.492646][ T37] hub_event+0x30c6/0x4700 [ 301.497093][ T37] ? __cfi_hub_event+0x10/0x10 [ 301.501968][ T37] ? pwq_dec_nr_in_flight+0x6c7/0xc60 [ 301.507500][ T37] ? _raw_spin_lock_irq+0x93/0x120 [ 301.512807][ T37] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 301.518376][ T37] process_scheduled_works+0x7d4/0x1020 [ 301.524140][ T37] worker_thread+0xc51/0x1370 [ 301.528842][ T37] kthread+0x2c9/0x370 [ 301.533037][ T37] ? __cfi_worker_thread+0x10/0x10 [ 301.538261][ T37] ? __cfi_kthread+0x10/0x10 [ 301.543096][ T37] ret_from_fork+0x67/0xa0 [ 301.547536][ T37] ? __cfi_kthread+0x10/0x10 [ 301.552345][ T37] ret_from_fork_asm+0x1a/0x30 [ 301.557147][ T37] [ 301.560411][ T37] INFO: task kworker/0:2:352 blocked for more than 123 seconds. [ 301.572307][ T37] Not tainted syzkaller #0 [ 301.577264][ T37] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 301.586174][ T37] task:kworker/0:2 state:D stack:0 pid:352 tgid:352 ppid:2 flags:0x00004000 [ 301.596517][ T37] Workqueue: usb_hub_wq hub_event [ 301.601586][ T37] Call Trace: [ 301.604987][ T37] [ 301.608020][ T37] __schedule+0x14ce/0x2100 [ 301.612672][ T37] ? __sched_text_start+0x10/0x10 [ 301.617719][ T37] ? kasan_save_alloc_info+0x40/0x50 [ 301.623267][ T37] ? __kasan_kmalloc+0x96/0xb0 [ 301.628059][ T37] ? kthread_data+0x54/0xc0 [ 301.632723][ T37] ? wq_worker_sleeping+0x69/0x260 [ 301.637949][ T37] ? trace_contention_begin+0xc0/0xc0 [ 301.643471][ T37] ? sysfs_do_create_link_sd+0x8a/0x120 [ 301.649128][ T37] schedule+0xc5/0x240 [ 301.653332][ T37] schedule_preempt_disabled+0x14/0x30 [ 301.658812][ T37] __mutex_lock+0x960/0x1bc0 [ 301.663624][ T37] ? __ww_mutex_lock_interruptible_slowpath+0x30/0x30 [ 301.670423][ T37] ? selinux_kernfs_init_security+0x14b/0x4b0 [ 301.676843][ T37] ? __cfi_selinux_kernfs_init_security+0x10/0x10 [ 301.683414][ T37] ? snd_usb_apply_boot_quirk+0xea6/0x2d10 [ 301.689353][ T37] ? bpf_lsm_kernfs_init_security+0xd/0x20 [ 301.695308][ T37] ? security_kernfs_init_security+0x39/0xf0 [ 301.701405][ T37] __mutex_lock_slowpath+0xe/0x20 [ 301.706654][ T37] mutex_lock+0x113/0x1d0 [ 301.711017][ T37] ? __cfi_mutex_lock+0x10/0x10 [ 301.716086][ T37] ? _raw_spin_lock_irqsave+0xc1/0x160 [ 301.721573][ T37] ? __cfi__raw_spin_lock_irqsave+0x10/0x10 [ 301.727681][ T37] usb_audio_probe+0x39d/0x1d60 [ 301.732640][ T37] ? pm_runtime_enable+0x1eb/0x2d0 [ 301.737854][ T37] ? __cfi_usb_audio_probe+0x10/0x10 [ 301.743450][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 301.749360][ T37] ? pm_runtime_enable+0x1eb/0x2d0 [ 301.754614][ T37] usb_probe_interface+0x6ac/0xc00 [ 301.759829][ T37] ? __cfi_usb_probe_interface+0x10/0x10 [ 301.765594][ T37] really_probe+0x2d8/0x890 [ 301.770381][ T37] __driver_probe_device+0x198/0x280 [ 301.775802][ T37] driver_probe_device+0x54/0x3f0 [ 301.780942][ T37] ? __device_attach_driver+0x2db/0x4b0 [ 301.786998][ T37] __device_attach_driver+0x2f1/0x4b0 [ 301.792548][ T37] bus_for_each_drv+0x264/0x300 [ 301.797430][ T37] ? __cfi___device_attach_driver+0x10/0x10 [ 301.803739][ T37] ? __cfi_bus_for_each_drv+0x10/0x10 [ 301.809142][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 301.815173][ T37] __device_attach+0x2c9/0x3c0 [ 301.819967][ T37] ? device_attach+0x40/0x40 [ 301.824695][ T37] ? _raw_spin_lock+0x92/0x120 [ 301.829583][ T37] ? __cfi__raw_spin_lock+0x10/0x10 [ 301.834920][ T37] device_initial_probe+0x1e/0x30 [ 301.840189][ T37] bus_probe_device+0x18b/0x270 [ 301.845172][ T37] device_add+0x80c/0xbf0 [ 301.849533][ T37] usb_set_configuration+0x1acf/0x20b0 [ 301.855208][ T37] usb_generic_driver_probe+0x95/0x160 [ 301.860690][ T37] usb_probe_device+0x1d1/0x380 [ 301.865762][ T37] ? __cfi_usb_probe_device+0x10/0x10 [ 301.871156][ T37] really_probe+0x2d8/0x890 [ 301.875865][ T37] __driver_probe_device+0x198/0x280 [ 301.881243][ T37] driver_probe_device+0x54/0x3f0 [ 301.886494][ T37] ? __device_attach_driver+0x2db/0x4b0 [ 301.892155][ T37] __device_attach_driver+0x2f1/0x4b0 [ 301.897642][ T37] bus_for_each_drv+0x264/0x300 [ 301.902624][ T37] ? __cfi___device_attach_driver+0x10/0x10 [ 301.908636][ T37] ? __cfi_bus_for_each_drv+0x10/0x10 [ 301.914136][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 301.920048][ T37] __device_attach+0x2c9/0x3c0 [ 301.924950][ T37] ? device_attach+0x40/0x40 [ 301.929562][ T37] ? _raw_spin_lock+0x92/0x120 [ 301.934825][ T37] ? __cfi__raw_spin_lock+0x10/0x10 [ 301.940050][ T37] device_initial_probe+0x1e/0x30 [ 301.945283][ T37] bus_probe_device+0x18b/0x270 [ 301.950163][ T37] device_add+0x80c/0xbf0 [ 301.954731][ T37] usb_new_device+0x9f8/0x15b0 [ 301.959668][ T37] ? __cfi_usb_new_device+0x10/0x10 [ 301.965041][ T37] hub_event+0x30c6/0x4700 [ 301.969490][ T37] ? __cfi_hub_event+0x10/0x10 [ 301.974609][ T37] ? pwq_dec_nr_in_flight+0x6c7/0xc60 [ 301.980028][ T37] ? _raw_spin_lock_irq+0x93/0x120 [ 301.985449][ T37] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 301.991028][ T37] process_scheduled_works+0x7d4/0x1020 [ 301.996800][ T37] worker_thread+0xc51/0x1370 [ 302.001508][ T37] ? __kasan_check_read+0x15/0x20 [ 302.006664][ T37] ? schedule+0xc5/0x240 [ 302.011018][ T37] kthread+0x2c9/0x370 [ 302.015222][ T37] ? __cfi_worker_thread+0x10/0x10 [ 302.020356][ T37] ? __cfi_kthread+0x10/0x10 [ 302.025263][ T37] ret_from_fork+0x67/0xa0 [ 302.029703][ T37] ? __cfi_kthread+0x10/0x10 [ 302.034429][ T37] ret_from_fork_asm+0x1a/0x30 [ 302.039310][ T37] [ 302.042638][ T37] INFO: task kworker/1:5:404 blocked for more than 123 seconds. [ 302.050393][ T37] Not tainted syzkaller #0 [ 302.055452][ T37] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 302.064380][ T37] task:kworker/1:5 state:D stack:0 pid:404 tgid:404 ppid:2 flags:0x00004000 [ 302.074847][ T37] Workqueue: usb_hub_wq hub_event [ 302.079918][ T37] Call Trace: [ 302.083361][ T37] [ 302.086421][ T37] __schedule+0x14ce/0x2100 [ 302.090959][ T37] ? __sched_text_start+0x10/0x10 [ 302.096154][ T37] ? kasan_save_alloc_info+0x40/0x50 [ 302.101560][ T37] ? __kasan_kmalloc+0x96/0xb0 [ 302.106469][ T37] ? kthread_data+0x54/0xc0 [ 302.110994][ T37] ? wq_worker_sleeping+0x69/0x260 [ 302.116319][ T37] ? trace_contention_begin+0xc0/0xc0 [ 302.121722][ T37] ? sysfs_do_create_link_sd+0x8a/0x120 [ 302.127508][ T37] schedule+0xc5/0x240 [ 302.131608][ T37] schedule_preempt_disabled+0x14/0x30 [ 302.137201][ T37] __mutex_lock+0x960/0x1bc0 [ 302.142255][ T37] ? __ww_mutex_lock_interruptible_slowpath+0x30/0x30 [ 302.149070][ T37] ? selinux_kernfs_init_security+0x14b/0x4b0 [ 302.155443][ T37] ? __cfi_selinux_kernfs_init_security+0x10/0x10 [ 302.161890][ T37] ? snd_usb_apply_boot_quirk+0xea6/0x2d10 [ 302.168073][ T37] ? bpf_lsm_kernfs_init_security+0xd/0x20 [ 302.173996][ T37] ? security_kernfs_init_security+0x39/0xf0 [ 302.180101][ T37] __mutex_lock_slowpath+0xe/0x20 [ 302.185278][ T37] mutex_lock+0x113/0x1d0 [ 302.189631][ T37] ? __cfi_mutex_lock+0x10/0x10 [ 302.194683][ T37] ? _raw_spin_lock_irqsave+0xc1/0x160 [ 302.200165][ T37] ? __cfi__raw_spin_lock_irqsave+0x10/0x10 [ 302.206304][ T37] usb_audio_probe+0x39d/0x1d60 [ 302.211187][ T37] ? pm_runtime_enable+0x1eb/0x2d0 [ 302.216499][ T37] ? __cfi_usb_audio_probe+0x10/0x10 [ 302.221808][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 302.227952][ T37] ? pm_runtime_enable+0x1eb/0x2d0 [ 302.233200][ T37] usb_probe_interface+0x6ac/0xc00 [ 302.238445][ T37] ? __cfi_usb_probe_interface+0x10/0x10 [ 302.244227][ T37] really_probe+0x2d8/0x890 [ 302.248841][ T37] __driver_probe_device+0x198/0x280 [ 302.254254][ T37] driver_probe_device+0x54/0x3f0 [ 302.259384][ T37] ? __device_attach_driver+0x2db/0x4b0 [ 302.265136][ T37] __device_attach_driver+0x2f1/0x4b0 [ 302.270622][ T37] bus_for_each_drv+0x264/0x300 [ 302.275597][ T37] ? __cfi___device_attach_driver+0x10/0x10 [ 302.281601][ T37] ? __cfi_bus_for_each_drv+0x10/0x10 [ 302.287172][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 302.293172][ T37] __device_attach+0x2c9/0x3c0 [ 302.297963][ T37] ? device_attach+0x40/0x40 [ 302.302694][ T37] ? _raw_spin_lock+0x92/0x120 [ 302.307563][ T37] ? __cfi__raw_spin_lock+0x10/0x10 [ 302.312888][ T37] device_initial_probe+0x1e/0x30 [ 302.318029][ T37] bus_probe_device+0x18b/0x270 [ 302.323107][ T37] device_add+0x80c/0xbf0 [ 302.327473][ T37] usb_set_configuration+0x1acf/0x20b0 [ 302.333284][ T37] usb_generic_driver_probe+0x95/0x160 [ 302.338779][ T37] usb_probe_device+0x1d1/0x380 [ 302.343859][ T37] ? __cfi_usb_probe_device+0x10/0x10 [ 302.349259][ T37] really_probe+0x2d8/0x890 [ 302.353988][ T37] __driver_probe_device+0x198/0x280 [ 302.359383][ T37] driver_probe_device+0x54/0x3f0 [ 302.364762][ T37] ? __device_attach_driver+0x2db/0x4b0 [ 302.370348][ T37] __device_attach_driver+0x2f1/0x4b0 [ 302.375952][ T37] bus_for_each_drv+0x264/0x300 [ 302.380821][ T37] ? __cfi___device_attach_driver+0x10/0x10 [ 302.386945][ T37] ? __cfi_bus_for_each_drv+0x10/0x10 [ 302.392421][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 302.398435][ T37] __device_attach+0x2c9/0x3c0 [ 302.403419][ T37] ? device_attach+0x40/0x40 [ 302.408195][ T37] ? _raw_spin_lock+0x92/0x120 [ 302.413213][ T37] ? __cfi__raw_spin_lock+0x10/0x10 [ 302.418437][ T37] device_initial_probe+0x1e/0x30 [ 302.423687][ T37] bus_probe_device+0x18b/0x270 [ 302.428574][ T37] device_add+0x80c/0xbf0 [ 302.433123][ T37] usb_new_device+0x9f8/0x15b0 [ 302.438017][ T37] ? __cfi_usb_new_device+0x10/0x10 [ 302.443349][ T37] hub_event+0x30c6/0x4700 [ 302.447796][ T37] ? __cfi_hub_event+0x10/0x10 [ 302.462236][ T37] ? pwq_dec_nr_in_flight+0x6c7/0xc60 [ 302.474337][ T37] ? _raw_spin_lock_irq+0x93/0x120 [ 302.479608][ T37] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 302.485432][ T37] process_scheduled_works+0x7d4/0x1020 [ 302.491141][ T37] worker_thread+0xc51/0x1370 [ 302.496073][ T37] ? __kasan_check_read+0x15/0x20 [ 302.501283][ T37] ? schedule+0xc5/0x240 [ 302.506756][ T37] kthread+0x2c9/0x370 [ 302.510870][ T37] ? __cfi_worker_thread+0x10/0x10 [ 302.516311][ T37] ? __cfi_kthread+0x10/0x10 [ 302.520969][ T37] ret_from_fork+0x67/0xa0 [ 302.525688][ T37] ? __cfi_kthread+0x10/0x10 [ 302.530377][ T37] ret_from_fork_asm+0x1a/0x30 [ 302.535288][ T37] [ 302.538335][ T37] NMI backtrace for cpu 0 [ 302.538346][ T37] CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 d58365df94cd5f4886b4f3ec3f08a458f2157066 [ 302.538372][ T37] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 302.538384][ T37] Call Trace: [ 302.538390][ T37] [ 302.538397][ T37] __dump_stack+0x21/0x30 [ 302.538426][ T37] dump_stack_lvl+0x140/0x1c0 [ 302.538454][ T37] ? __cfi_dump_stack_lvl+0x10/0x10 [ 302.538483][ T37] dump_stack+0x19/0x20 [ 302.538510][ T37] nmi_cpu_backtrace+0x2ba/0x2d0 [ 302.538530][ T37] ? rcu_read_unlock_special+0x14d/0x440 [ 302.538558][ T37] ? __cfi_nmi_cpu_backtrace+0x10/0x10 [ 302.538576][ T37] ? sched_show_task+0x371/0x530 [ 302.538603][ T37] ? __rcu_read_unlock+0xc0/0xc0 [ 302.538630][ T37] ? __cfi_nmi_raise_cpu_backtrace+0x10/0x10 [ 302.538658][ T37] ? __cfi_nmi_raise_cpu_backtrace+0x10/0x10 [ 302.538685][ T37] nmi_trigger_cpumask_backtrace+0x142/0x2c0 [ 302.538705][ T37] arch_trigger_cpumask_backtrace+0x14/0x20 [ 302.538732][ T37] watchdog+0xdad/0xf00 [ 302.538753][ T37] ? __kasan_check_write+0x18/0x20 [ 302.538776][ T37] ? __cfi_watchdog+0x10/0x10 [ 302.538796][ T37] ? __kasan_check_read+0x15/0x20 [ 302.538815][ T37] ? __kthread_parkme+0x137/0x180 [ 302.538835][ T37] ? schedule+0xc5/0x240 [ 302.538857][ T37] kthread+0x2c9/0x370 [ 302.538879][ T37] ? __cfi_watchdog+0x10/0x10 [ 302.538899][ T37] ? __cfi_kthread+0x10/0x10 [ 302.538921][ T37] ret_from_fork+0x67/0xa0 [ 302.538938][ T37] ? __cfi_kthread+0x10/0x10 [ 302.538961][ T37] ret_from_fork_asm+0x1a/0x30 [ 302.538989][ T37] [ 302.538996][ T37] Sending NMI from CPU 0 to CPUs 1: [ 302.703743][ C1] NMI backtrace for cpu 1 [ 302.703757][ C1] CPU: 1 UID: 0 PID: 66 Comm: kworker/1:2 Not tainted syzkaller #0 d58365df94cd5f4886b4f3ec3f08a458f2157066 [ 302.703780][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 302.703790][ C1] Workqueue: usb_hub_wq hub_event [ 302.703815][ C1] RIP: 0010:__sanitizer_cov_trace_cmp4+0x0/0x90 [ 302.703838][ C1] Code: 00 48 89 7c 11 10 48 89 74 11 18 48 89 44 11 20 5d e9 d4 ae 22 04 cc 0f 1f 00 b8 69 99 69 53 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 55 48 89 e5 48 8b 45 08 65 48 8b 15 8c 26 7d 7e 65 8b [ 302.703851][ C1] RSP: 0018:ffffc90000d6ec38 EFLAGS: 00000293 [ 302.703864][ C1] RAX: ffffffff846c21ff RBX: 00000000000006f5 RCX: 0000000000000000 [ 302.703876][ C1] RDX: ffff888106372600 RSI: 0000000000000006 RDI: 0000000000000001 [ 302.703887][ C1] RBP: ffffc90000d6ee00 R08: ffff888106372600 R09: 0000000000000020 [ 302.703899][ C1] R10: 00000000000000bc R11: 0000000000000000 R12: 0000000000000006 [ 302.703909][ C1] R13: ffff888118af810d R14: 00000000000006f5 R15: 0000000000000001 [ 302.703921][ C1] FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 302.703935][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 302.703947][ C1] CR2: 00007f914d785fc0 CR3: 0000000128844000 CR4: 00000000003526b0 [ 302.703964][ C1] Call Trace: [ 302.703970][ C1] [ 302.703976][ C1] ? __snd_usb_parse_audio_interface+0x297f/0x47d0 [ 302.704001][ C1] ? snd_usb_parse_audio_interface+0xd0/0xd0 [ 302.704019][ C1] snd_usb_parse_audio_interface+0x3e/0xd0 [ 302.704036][ C1] snd_usb_create_stream+0x3df/0x540 [ 302.704057][ C1] usb_audio_probe+0x1319/0x1d60 [ 302.704078][ C1] ? __cfi_usb_audio_probe+0x10/0x10 [ 302.704097][ C1] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 302.704114][ C1] ? pm_runtime_enable+0x1eb/0x2d0 [ 302.704131][ C1] usb_probe_interface+0x6ac/0xc00 [ 302.704151][ C1] ? __cfi_usb_probe_interface+0x10/0x10 [ 302.704169][ C1] really_probe+0x2d8/0x890 [ 302.704190][ C1] __driver_probe_device+0x198/0x280 [ 302.704209][ C1] driver_probe_device+0x54/0x3f0 [ 302.704228][ C1] ? __device_attach_driver+0x2db/0x4b0 [ 302.704248][ C1] __device_attach_driver+0x2f1/0x4b0 [ 302.704268][ C1] bus_for_each_drv+0x264/0x300 [ 302.704283][ C1] ? __cfi___device_attach_driver+0x10/0x10 [ 302.704303][ C1] ? __cfi_bus_for_each_drv+0x10/0x10 [ 302.704319][ C1] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 302.704336][ C1] __device_attach+0x2c9/0x3c0 [ 302.704354][ C1] ? device_attach+0x40/0x40 [ 302.704371][ C1] ? _raw_spin_lock+0x92/0x120 [ 302.704386][ C1] ? __cfi__raw_spin_lock+0x10/0x10 [ 302.704402][ C1] device_initial_probe+0x1e/0x30 [ 302.704421][ C1] bus_probe_device+0x18b/0x270 [ 302.704436][ C1] device_add+0x80c/0xbf0 [ 302.704454][ C1] usb_set_configuration+0x1acf/0x20b0 [ 302.704475][ C1] usb_generic_driver_probe+0x95/0x160 [ 302.704498][ C1] usb_probe_device+0x1d1/0x380 [ 302.704516][ C1] ? __cfi_usb_probe_device+0x10/0x10 [ 302.704534][ C1] really_probe+0x2d8/0x890 [ 302.704554][ C1] __driver_probe_device+0x198/0x280 [ 302.704572][ C1] driver_probe_device+0x54/0x3f0 [ 302.704591][ C1] ? __device_attach_driver+0x2db/0x4b0 [ 302.704612][ C1] __device_attach_driver+0x2f1/0x4b0 [ 302.704632][ C1] bus_for_each_drv+0x264/0x300 [ 302.704647][ C1] ? __cfi___device_attach_driver+0x10/0x10 [ 302.704668][ C1] ? __cfi_bus_for_each_drv+0x10/0x10 [ 302.704683][ C1] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 302.704699][ C1] __device_attach+0x2c9/0x3c0 [ 302.704718][ C1] ? device_attach+0x40/0x40 [ 302.704738][ C1] ? _raw_spin_lock+0x92/0x120 [ 302.704753][ C1] ? __cfi__raw_spin_lock+0x10/0x10 [ 302.704769][ C1] device_initial_probe+0x1e/0x30 [ 302.704787][ C1] bus_probe_device+0x18b/0x270 [ 302.704803][ C1] device_add+0x80c/0xbf0 [ 302.704820][ C1] usb_new_device+0x9f8/0x15b0 [ 302.704838][ C1] ? __cfi_usb_new_device+0x10/0x10 [ 302.704854][ C1] hub_event+0x30c6/0x4700 [ 302.704876][ C1] ? __cfi_hub_event+0x10/0x10 [ 302.704893][ C1] ? pwq_dec_nr_in_flight+0x6c7/0xc60 [ 302.704910][ C1] ? _raw_spin_lock_irq+0x93/0x120 [ 302.704926][ C1] ? __cfi__raw_spin_lock_irq+0x10/0x10 [ 302.704942][ C1] process_scheduled_works+0x7d4/0x1020 [ 302.704961][ C1] worker_thread+0xc51/0x1370 [ 302.704979][ C1] ? __kasan_check_read+0x15/0x20 [ 302.704996][ C1] ? schedule+0xc5/0x240 [ 302.705012][ C1] kthread+0x2c9/0x370 [ 302.705029][ C1] ? __cfi_worker_thread+0x10/0x10 [ 302.705046][ C1] ? __cfi_kthread+0x10/0x10 [ 302.705063][ C1] ret_from_fork+0x67/0xa0 [ 302.705079][ C1] ? __cfi_kthread+0x10/0x10 [ 302.705097][ C1] ret_from_fork_asm+0x1a/0x30 [ 302.705114][ C1] 2026/05/18 13:37:37 executed programs: 200