./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1447987595 <...> Warning: Permanently added '10.128.0.240' (ED25519) to the list of known hosts. execve("./syz-executor1447987595", ["./syz-executor1447987595"], 0x7fff670ffe20 /* 10 vars */) = 0 brk(NULL) = 0x55556d86a000 brk(0x55556d86ad00) = 0x55556d86ad00 arch_prctl(ARCH_SET_FS, 0x55556d86a380) = 0 set_tid_address(0x55556d86a650) = 5840 set_robust_list(0x55556d86a660, 24) = 0 rseq(0x55556d86aca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1447987595", 4096) = 28 getrandom("\xa0\xd8\x43\x07\xcb\x9a\x23\xd4", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556d86ad00 brk(0x55556d88bd00) = 0x55556d88bd00 brk(0x55556d88c000) = 0x55556d88c000 mprotect(0x7fb187e23000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5841 attached [pid 5841] set_robust_list(0x55556d86a660, 24 [pid 5840] <... clone resumed>, child_tidptr=0x55556d86a650) = 5841 [pid 5841] <... set_robust_list resumed>) = 0 [pid 5841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5841] setpgid(0, 0) = 0 [pid 5841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "1000", 4) = 4 [pid 5841] close(3) = 0 [pid 5841] write(1, "executing program\n", 18executing program ) = 18 [pid 5841] openat(AT_FDCWD, "/dev/raw-gadget", O_RDWR) = 3 [pid 5841] ioctl(3, USB_RAW_IOCTL_INIT, 0x7fff733303a0) = 0 [pid 5841] ioctl(3, UI_DEV_CREATE or USB_RAW_IOCTL_RUN, 0) = 0 [pid 5841] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fff733303a0) = 0 [pid 5841] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fff733303a0) = 0 [pid 5841] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fff733303a0) = 0 [pid 5841] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fff733303a0) = 0 [pid 5841] ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fff7332f390) = 18 [pid 5841] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fff733303a0) = 0 [ 90.250580][ T10] usb 1-1: new high-speed USB device number 2 using dummy_hcd [pid 5841] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fff733303a0) = 0 [pid 5841] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fff733303a0) = 0 [pid 5841] ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fff7332f390) = 18 [pid 5841] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fff733303a0) = 0 [pid 5841] ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fff7332f390) = 9 [pid 5841] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fff733303a0) = 0 [ 90.430314][ T10] usb 1-1: Using ep0 maxpacket: 8 [pid 5841] ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fff7332f390) = 34 [pid 5841] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fff733303a0) = 0 [pid 5841] ioctl(3, USB_RAW_IOCTL_VBUS_DRAW, 0) = 0 [pid 5841] ioctl(3, USB_RAW_IOCTL_CONFIGURE, 0) = 0 [pid 5841] ioctl(3, USB_RAW_IOCTL_EP0_READ, 0x7fff7332f390) = 0 [ 90.451466][ T10] usb 1-1: New USB device found, idVendor=2833, idProduct=0201, bcdDevice=2a.d5 [ 90.460777][ T10] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 90.473177][ T10] usb 1-1: config 0 descriptor?? [pid 5841] exit_group(0) = ? [pid 5841] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5841, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5844 attached [ 90.711856][ T10] usb 1-1: string descriptor 0 read error: -71 [ 90.718390][ T10] usb 1-1: Found UVC 0.00 device (2833:0201) [ 90.725951][ T10] uvcvideo 1-1:0.0: Entity type for entity Output 1 was not initialized! [ 90.735131][ T10] uvcvideo 1-1:0.0: Entity type for entity Input 1 was not initialized! [ 90.745572][ T10] ------------[ cut here ]------------ [ 90.751323][ T10] WARNING: CPU: 0 PID: 10 at drivers/media/mc/mc-entity.c:1147 media_create_pad_link+0xa30/0xbb0 , child_tidptr=0x55556d86a650) = 5844 [pid 5844] set_robust_list(0x55556d86a660, 24) = 0 [pid 5844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5844] setpgid(0, 0) = 0 [ 90.761990][ T10] Modules linked in: [ 90.766108][ T10] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted 6.15.0-rc3-syzkaller-00008-ga33b5a08cbbd #0 PREEMPT(full) [ 90.778188][ T10] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 90.788342][ T10] Workqueue: usb_hub_wq hub_event [ 90.793444][ T10] RIP: 0010:media_create_pad_link+0xa30/0xbb0 [pid 5844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5844] write(3, "1000", 4) = 4 [pid 5844] close(3) = 0 [pid 5844] write(1, "executing program\n", 18executing program ) = 18 [pid 5844] openat(AT_FDCWD, "/dev/raw-gadget", O_RDWR) = 3 [pid 5844] ioctl(3, USB_RAW_IOCTL_INIT, 0x7fff733303a0) = 0 [ 90.799546][ T10] Code: ff ff eb dd e8 01 17 87 f9 90 0f 0b 90 b8 ea ff ff ff eb cd e8 f1 16 87 f9 90 0f 0b 90 b8 ea ff ff ff eb bd e8 e1 16 87 f9 90 <0f> 0b 90 b8 ea ff ff ff eb ad e8 d1 16 87 f9 90 0f 0b 90 b8 ea ff [ 90.819259][ T10] RSP: 0018:ffffc900000f6938 EFLAGS: 00010293 [ 90.825404][ T10] RAX: ffffffff883ba63f RBX: 0000000000000000 RCX: ffff88801c681e00 [ 90.833486][ T10] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 90.841532][ T10] RBP: 0000000000000000 R08: ffffffff883b9d31 R09: 1ffff11028b5fc85 [ 90.849537][ T10] R10: dffffc0000000000 R11: ffffed1028b5fc86 R12: dffffc0000000000 [pid 5844] ioctl(3, UI_DEV_CREATE or USB_RAW_IOCTL_RUN, 0) = 0 [pid 5844] ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fff733303a0) = 0 [ 90.857661][ T10] R13: ffff88801ef96880 R14: 0000000000000000 R15: ffff88801ef968c8 [ 90.865722][ T10] FS: 0000000000000000(0000) GS:ffff888124f9a000(0000) knlGS:0000000000000000 [ 90.874774][ T10] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.881447][ T10] CR2: 0000560c33b3df38 CR3: 0000000022bc2000 CR4: 00000000003526f0 [ 90.889464][ T10] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.897572][ T10] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.905609][ T10] Call Trace: [ 90.908892][ T10] [ 90.911906][ T10] ? _raw_spin_unlock+0x28/0x50 [ 90.916819][ T10] ? __v4l2_device_register_subdev+0x4f4/0x580 [ 90.923091][ T10] uvc_mc_register_entities+0x733/0xa00 [ 90.928765][ T10] uvc_register_chains+0x3d4/0x4c0 [ 90.933992][ T10] uvc_probe+0x9c19/0xa6f0 [ 90.938464][ T10] ? do_raw_spin_lock+0x151/0x370 [ 90.943576][ T10] ? __lock_acquire+0xad5/0xd80 [ 90.948493][ T10] ? do_raw_spin_lock+0x151/0x370 [ 90.953674][ T10] ? _raw_spin_unlock_irqrestore+0x90/0x140 [ 90.959614][ T10] ? lockdep_hardirqs_on+0x9d/0x150 [ 90.965362][ T10] ? _raw_spin_unlock_irqrestore+0xde/0x140 [ 90.971375][ T10] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 90.977749][ T10] usb_probe_interface+0x650/0xbc0 [ 90.983049][ T10] ? __pfx_usb_probe_interface+0x10/0x10 [ 90.988724][ T10] really_probe+0x2b9/0xad0 [ 90.993395][ T10] __driver_probe_device+0x1a2/0x390 [ 90.998744][ T10] driver_probe_device+0x50/0x430 [ 91.003885][ T10] __device_attach_driver+0x2d6/0x530 [ 91.009314][ T10] bus_for_each_drv+0x258/0x2e0 [ 91.014302][ T10] ? __pfx___device_attach_driver+0x10/0x10 [ 91.020306][ T10] ? __pfx_bus_for_each_drv+0x10/0x10 [ 91.025754][ T10] __device_attach+0x341/0x530 [ 91.030682][ T10] ? __pfx___device_attach+0x10/0x10 [ 91.036017][ T10] ? do_raw_spin_unlock+0x13c/0x8b0 [ 91.041393][ T10] bus_probe_device+0x189/0x260 [ 91.046312][ T10] device_add+0x856/0xbf0 [ 91.050807][ T10] usb_set_configuration+0x1999/0x1fe0 [ 91.056338][ T10] usb_generic_driver_probe+0x88/0x140 [ 91.061912][ T10] usb_probe_device+0x1b8/0x380 [ 91.066822][ T10] ? __pfx_usb_probe_device+0x10/0x10 [ 91.072284][ T10] really_probe+0x2b9/0xad0 [ 91.076841][ T10] __driver_probe_device+0x1a2/0x390 [ 91.082262][ T10] driver_probe_device+0x50/0x430 [ 91.087328][ T10] __device_attach_driver+0x2d6/0x530 [ 91.092882][ T10] bus_for_each_drv+0x258/0x2e0 [ 91.097800][ T10] ? __pfx___device_attach_driver+0x10/0x10 [ 91.103796][ T10] ? __pfx_bus_for_each_drv+0x10/0x10 [ 91.109220][ T10] __device_attach+0x341/0x530 [ 91.114113][ T10] ? __pfx___device_attach+0x10/0x10 [ 91.119448][ T10] bus_probe_device+0x189/0x260 [ 91.124427][ T10] device_add+0x856/0xbf0 [ 91.128795][ T10] usb_new_device+0x1052/0x19a0 [ 91.133756][ T10] ? __pfx_usb_new_device+0x10/0x10 [ 91.138990][ T10] ? _raw_spin_unlock_irq+0x23/0x50 [ 91.144278][ T10] ? lockdep_hardirqs_on+0x9d/0x150 [ 91.149506][ T10] hub_event+0x2bfd/0x50f0 [ 91.154077][ T10] ? __pfx_hub_event+0x10/0x10 [ 91.158878][ T10] ? __lock_acquire+0xad5/0xd80 [ 91.163843][ T10] ? process_scheduled_works+0x9cb/0x18e0 [ 91.169701][ T10] process_scheduled_works+0xac3/0x18e0 [ 91.175393][ T10] ? __pfx_process_scheduled_works+0x10/0x10 [ 91.181502][ T10] ? assign_work+0x367/0x3d0 [ 91.186150][ T10] worker_thread+0x870/0xd50 [ 91.190953][ T10] ? __kthread_parkme+0x1a8/0x200 [ 91.196021][ T10] ? __pfx_worker_thread+0x10/0x10 [ 91.201217][ T10] kthread+0x7b7/0x940 [ 91.205323][ T10] ? __pfx_worker_thread+0x10/0x10 [ 91.210523][ T10] ? __pfx_kthread+0x10/0x10 [ 91.215171][ T10] ? __pfx_kthread+0x10/0x10 [ 91.219768][ T10] ? __pfx_kthread+0x10/0x10 [ 91.224443][ T10] ? __pfx_kthread+0x10/0x10 [ 91.229097][ T10] ? _raw_spin_unlock_irq+0x23/0x50 [ 91.234407][ T10] ? lockdep_hardirqs_on+0x9d/0x150 [ 91.239632][ T10] ? __pfx_kthread+0x10/0x10 [ 91.244308][ T10] ret_from_fork+0x4b/0x80 [ 91.248759][ T10] ? __pfx_kthread+0x10/0x10 [ 91.253478][ T10] ret_from_fork_asm+0x1a/0x30 [ 91.258281][ T10] [ 91.261350][ T10] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 91.268753][ T10] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted 6.15.0-rc3-syzkaller-00008-ga33b5a08cbbd #0 PREEMPT(full) [ 91.280653][ T10] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 91.290739][ T10] Workqueue: usb_hub_wq hub_event [ 91.295775][ T10] Call Trace: [ 91.299058][ T10] [ 91.302017][ T10] dump_stack_lvl+0x241/0x360 [ 91.306725][ T10] ? __pfx_dump_stack_lvl+0x10/0x10 [ 91.311935][ T10] ? __pfx__printk+0x10/0x10 [ 91.316564][ T10] ? vscnprintf+0x5d/0x90 [ 91.320939][ T10] panic+0x349/0x880 [ 91.324862][ T10] ? __warn+0x174/0x4d0 [ 91.329028][ T10] ? __pfx_panic+0x10/0x10 [ 91.333500][ T10] ? ret_from_fork_asm+0x1a/0x30 [ 91.338445][ T10] __warn+0x344/0x4d0 [ 91.342438][ T10] ? media_create_pad_link+0xa30/0xbb0 [ 91.347910][ T10] report_bug+0x2b3/0x500 [ 91.352268][ T10] ? media_create_pad_link+0xa30/0xbb0 [ 91.357756][ T10] ? media_create_pad_link+0xa30/0xbb0 [ 91.363224][ T10] ? media_create_pad_link+0xa32/0xbb0 [ 91.368690][ T10] handle_bug+0x89/0x170 [ 91.372955][ T10] exc_invalid_op+0x1a/0x50 [ 91.377483][ T10] asm_exc_invalid_op+0x1a/0x20 [ 91.382354][ T10] RIP: 0010:media_create_pad_link+0xa30/0xbb0 [ 91.388435][ T10] Code: ff ff eb dd e8 01 17 87 f9 90 0f 0b 90 b8 ea ff ff ff eb cd e8 f1 16 87 f9 90 0f 0b 90 b8 ea ff ff ff eb bd e8 e1 16 87 f9 90 <0f> 0b 90 b8 ea ff ff ff eb ad e8 d1 16 87 f9 90 0f 0b 90 b8 ea ff [ 91.408071][ T10] RSP: 0018:ffffc900000f6938 EFLAGS: 00010293 [ 91.414158][ T10] RAX: ffffffff883ba63f RBX: 0000000000000000 RCX: ffff88801c681e00 [ 91.422151][ T10] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 91.430132][ T10] RBP: 0000000000000000 R08: ffffffff883b9d31 R09: 1ffff11028b5fc85 [ 91.438116][ T10] R10: dffffc0000000000 R11: ffffed1028b5fc86 R12: dffffc0000000000 [ 91.446108][ T10] R13: ffff88801ef96880 R14: 0000000000000000 R15: ffff88801ef968c8 [ 91.454103][ T10] ? media_create_pad_link+0x121/0xbb0 [ 91.459577][ T10] ? media_create_pad_link+0xa2f/0xbb0 [ 91.465062][ T10] ? media_create_pad_link+0xa2f/0xbb0 [ 91.470540][ T10] ? _raw_spin_unlock+0x28/0x50 [ 91.475406][ T10] ? __v4l2_device_register_subdev+0x4f4/0x580 [ 91.481584][ T10] uvc_mc_register_entities+0x733/0xa00 [ 91.487157][ T10] uvc_register_chains+0x3d4/0x4c0 [ 91.492287][ T10] uvc_probe+0x9c19/0xa6f0 [ 91.496727][ T10] ? do_raw_spin_lock+0x151/0x370 [ 91.501768][ T10] ? __lock_acquire+0xad5/0xd80 [ 91.506637][ T10] ? do_raw_spin_lock+0x151/0x370 [ 91.511691][ T10] ? _raw_spin_unlock_irqrestore+0x90/0x140 [ 91.517605][ T10] ? lockdep_hardirqs_on+0x9d/0x150 [ 91.522845][ T10] ? _raw_spin_unlock_irqrestore+0xde/0x140 [ 91.528758][ T10] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 91.535120][ T10] usb_probe_interface+0x650/0xbc0 [ 91.540259][ T10] ? __pfx_usb_probe_interface+0x10/0x10 [ 91.545903][ T10] really_probe+0x2b9/0xad0 [ 91.550478][ T10] __driver_probe_device+0x1a2/0x390 [ 91.555783][ T10] driver_probe_device+0x50/0x430 [ 91.560823][ T10] __device_attach_driver+0x2d6/0x530 [ 91.566303][ T10] bus_for_each_drv+0x258/0x2e0 [ 91.571175][ T10] ? __pfx___device_attach_driver+0x10/0x10 [ 91.577098][ T10] ? __pfx_bus_for_each_drv+0x10/0x10 [ 91.582516][ T10] __device_attach+0x341/0x530 [ 91.587314][ T10] ? __pfx___device_attach+0x10/0x10 [ 91.592618][ T10] ? do_raw_spin_unlock+0x13c/0x8b0 [ 91.597849][ T10] bus_probe_device+0x189/0x260 [ 91.602720][ T10] device_add+0x856/0xbf0 [ 91.607063][ T10] usb_set_configuration+0x1999/0x1fe0 [ 91.612554][ T10] usb_generic_driver_probe+0x88/0x140 [ 91.618059][ T10] usb_probe_device+0x1b8/0x380 [ 91.622925][ T10] ? __pfx_usb_probe_device+0x10/0x10 [ 91.628326][ T10] really_probe+0x2b9/0xad0 [ 91.632852][ T10] __driver_probe_device+0x1a2/0x390 [ 91.638154][ T10] driver_probe_device+0x50/0x430 [ 91.643212][ T10] __device_attach_driver+0x2d6/0x530 [ 91.649231][ T10] bus_for_each_drv+0x258/0x2e0 [ 91.654115][ T10] ? __pfx___device_attach_driver+0x10/0x10 [ 91.660028][ T10] ? __pfx_bus_for_each_drv+0x10/0x10 [ 91.665431][ T10] __device_attach+0x341/0x530 [ 91.670220][ T10] ? __pfx___device_attach+0x10/0x10 [ 91.675533][ T10] bus_probe_device+0x189/0x260 [ 91.680411][ T10] device_add+0x856/0xbf0 [ 91.684844][ T10] usb_new_device+0x1052/0x19a0 [ 91.689728][ T10] ? __pfx_usb_new_device+0x10/0x10 [ 91.694946][ T10] ? _raw_spin_unlock_irq+0x23/0x50 [ 91.700198][ T10] ? lockdep_hardirqs_on+0x9d/0x150 [ 91.705415][ T10] hub_event+0x2bfd/0x50f0 [ 91.709888][ T10] ? __pfx_hub_event+0x10/0x10 [ 91.714668][ T10] ? __lock_acquire+0xad5/0xd80 [ 91.719562][ T10] ? process_scheduled_works+0x9cb/0x18e0 [ 91.725303][ T10] process_scheduled_works+0xac3/0x18e0 [ 91.730895][ T10] ? __pfx_process_scheduled_works+0x10/0x10 [ 91.736899][ T10] ? assign_work+0x367/0x3d0 [ 91.741554][ T10] worker_thread+0x870/0xd50 [ 91.746167][ T10] ? __kthread_parkme+0x1a8/0x200 [ 91.751232][ T10] ? __pfx_worker_thread+0x10/0x10 [ 91.756355][ T10] kthread+0x7b7/0x940 [ 91.760439][ T10] ? __pfx_worker_thread+0x10/0x10 [ 91.765560][ T10] ? __pfx_kthread+0x10/0x10 [ 91.770182][ T10] ? __pfx_kthread+0x10/0x10 [ 91.774820][ T10] ? __pfx_kthread+0x10/0x10 [ 91.779436][ T10] ? __pfx_kthread+0x10/0x10 [ 91.784045][ T10] ? _raw_spin_unlock_irq+0x23/0x50 [ 91.789261][ T10] ? lockdep_hardirqs_on+0x9d/0x150 [ 91.794476][ T10] ? __pfx_kthread+0x10/0x10 [ 91.799101][ T10] ret_from_fork+0x4b/0x80 [ 91.803552][ T10] ? __pfx_kthread+0x10/0x10 [ 91.808178][ T10] ret_from_fork_asm+0x1a/0x30 [ 91.812982][ T10] [ 91.816213][ T10] Kernel Offset: disabled [ 91.820632][ T10] Rebooting in 86400 seconds..