Warning: Permanently added '10.128.1.111' (ED25519) to the list of known hosts. 2024/02/19 12:41:24 ignoring optional flag "sandboxArg"="0" 2024/02/19 12:41:24 parsed 1 programs 2024/02/19 12:41:24 executed programs: 0 [ 41.570703][ T2358] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 42.393818][ T2364] veth0_vlan: entered promiscuous mode [ 42.941043][ T2216] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 43.300752][ T2216] usb 1-1: config 0 contains an unexpected descriptor of type 0x2, skipping [ 43.309501][ T2216] usb 1-1: config 0 has 1 interface, different from the descriptor's value: 2 [ 43.318537][ T2216] usb 1-1: config 0 interface 0 altsetting 6 has an invalid endpoint with address 0x0, skipping [ 43.328957][ T2216] usb 1-1: config 0 interface 0 altsetting 6 has an invalid endpoint with address 0x0, skipping [ 43.339724][ T2216] usb 1-1: config 0 interface 0 altsetting 6 endpoint 0xE has invalid maxpacket 1024, setting to 64 [ 43.351719][ T2216] usb 1-1: config 0 interface 0 altsetting 6 has a duplicate endpoint with address 0xE, skipping [ 43.362758][ T2216] usb 1-1: config 0 interface 0 altsetting 1 has an invalid endpoint with address 0x0, skipping [ 43.373179][ T2216] usb 1-1: config 0 interface 0 altsetting 1 has an invalid endpoint with address 0x0, skipping [ 43.383952][ T2216] usb 1-1: config 0 interface 0 altsetting 1 endpoint 0xB has an invalid bInterval 0, changing to 7 [ 43.395075][ T2216] usb 1-1: config 0 interface 0 altsetting 1 endpoint 0x4 has invalid wMaxPacketSize 0 [ 43.404752][ T2216] usb 1-1: config 0 interface 0 altsetting 1 endpoint 0xD has invalid wMaxPacketSize 0 [ 43.414565][ T2216] usb 1-1: config 0 interface 0 altsetting 1 has an invalid endpoint with address 0x0, skipping [ 43.425313][ T2216] usb 1-1: config 0 interface 0 altsetting 1 has a duplicate endpoint with address 0xB, skipping [ 43.436581][ T2216] usb 1-1: config 0 interface 0 altsetting 1 endpoint 0x6 has invalid maxpacket 1024, setting to 64 [ 43.447708][ T2216] usb 1-1: config 0 interface 0 altsetting 1 has a duplicate endpoint with address 0xB, skipping [ 43.458206][ T2216] usb 1-1: config 0 interface 0 has no altsetting 0 [ 43.620788][ T2216] usb 1-1: New USB device found, idVendor=1f71, idProduct=3301, bcdDevice=17.9b [ 43.629907][ T2216] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 43.638171][ T2216] usb 1-1: Product: syz [ 43.642577][ T2216] usb 1-1: Manufacturer: syz [ 43.647404][ T2216] usb 1-1: SerialNumber: syz [ 43.653005][ T2216] usb 1-1: config 0 descriptor?? [ 43.933431][ T2216] usbtv 1-1:0.0: Fushicai USBTV007 Audio-Video Grabber [ 43.941842][ T2216] usb 1-1: USB disconnect, device number 2 [ 43.953098][ T2216] [ 43.955618][ T2216] ============================================ [ 43.961837][ T2216] WARNING: possible recursive locking detected [ 43.967951][ T2216] 6.7.0-rc2-syzkaller #0 Not tainted [ 43.973470][ T2216] -------------------------------------------- [ 43.979594][ T2216] kworker/1:2/2216 is trying to acquire lock: [ 43.985721][ T2216] ffff88810eb81b70 (&usbtv->vb2q_lock){+.+.}-{3:3}, at: vb2_video_unregister_device+0x6a/0xb0 [ 43.996718][ T2216] [ 43.996718][ T2216] but task is already holding lock: [ 44.004329][ T2216] ffff88810eb81b70 (&usbtv->vb2q_lock){+.+.}-{3:3}, at: usbtv_video_free+0x1d/0x70 [ 44.013759][ T2216] [ 44.013759][ T2216] other info that might help us debug this: [ 44.022152][ T2216] Possible unsafe locking scenario: [ 44.022152][ T2216] [ 44.029753][ T2216] CPU0 [ 44.033027][ T2216] ---- [ 44.036278][ T2216] lock(&usbtv->vb2q_lock); [ 44.041006][ T2216] lock(&usbtv->vb2q_lock); [ 44.045560][ T2216] [ 44.045560][ T2216] *** DEADLOCK *** [ 44.045560][ T2216] [ 44.053769][ T2216] May be due to missing lock nesting notation [ 44.053769][ T2216] [ 44.062069][ T2216] 7 locks held by kworker/1:2/2216: [ 44.067232][ T2216] #0: ffff88810425ef38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x1f2/0x4d0 [ 44.078741][ T2216] #1: ffffc90000e5fe58 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x1f2/0x4d0 [ 44.090689][ T2216] #2: ffff88810ca6b190 (&dev->mutex){....}-{3:3}, at: hub_event+0x7e/0x1b20 [ 44.099686][ T2216] #3: ffff888119608990 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0x80/0x290 [ 44.108847][ T2216] #4: ffff88811960f160 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0x47/0x2a0 [ 44.119318][ T2216] #5: ffff88810eb81b70 (&usbtv->vb2q_lock){+.+.}-{3:3}, at: usbtv_video_free+0x1d/0x70 [ 44.129263][ T2216] #6: ffff88810eb81ae0 (&usbtv->v4l2_lock){+.+.}-{3:3}, at: usbtv_video_free+0x2e/0x70 [ 44.140131][ T2216] [ 44.140131][ T2216] stack backtrace: [ 44.146611][ T2216] CPU: 1 PID: 2216 Comm: kworker/1:2 Not tainted 6.7.0-rc2-syzkaller #0 [ 44.154915][ T2216] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 44.165458][ T2216] Workqueue: usb_hub_wq hub_event [ 44.170623][ T2216] Call Trace: [ 44.173967][ T2216] [ 44.177006][ T2216] dump_stack_lvl+0x8d/0xe0 [ 44.184237][ T2216] __lock_acquire+0x10ba/0x2490 [ 44.189065][ T2216] ? _raw_spin_unlock_irqrestore+0x43/0xb0 [ 44.195295][ T2216] ? lockdep_hardirqs_on+0x98/0x100 [ 44.200465][ T2216] ? _raw_spin_unlock_irqrestore+0x6c/0xb0 [ 44.206636][ T2216] ? debug_check_no_obj_freed+0x214/0x270 [ 44.212677][ T2216] ? vb2_video_unregister_device+0x6a/0xb0 [ 44.218533][ T2216] lock_acquire+0xea/0x270 [ 44.224479][ T2216] ? vb2_video_unregister_device+0x6a/0xb0 [ 44.230516][ T2216] ? vb2_video_unregister_device+0x6a/0xb0 [ 44.236558][ T2216] __mutex_lock+0x99/0x9a0 [ 44.240954][ T2216] ? vb2_video_unregister_device+0x6a/0xb0 [ 44.247088][ T2216] ? device_del+0x346/0x370 [ 44.251644][ T2216] vb2_video_unregister_device+0x6a/0xb0 [ 44.257428][ T2216] usbtv_video_free+0x42/0x70 [ 44.262076][ T2216] usbtv_disconnect+0x2c/0x50 [ 44.266733][ T2216] usb_unbind_interface+0xb7/0x260 [ 44.271824][ T2216] device_release_driver_internal+0x1a4/0x2a0 [ 44.277944][ T2216] bus_remove_device+0x147/0x190 [ 44.282937][ T2216] device_del+0x22b/0x370 [ 44.288447][ T2216] usb_disable_device+0x78/0x1f0 [ 44.293354][ T2216] usb_disconnect+0xfc/0x290 [ 44.297911][ T2216] hub_event+0xc2f/0x1b20 [ 44.302296][ T2216] ? process_scheduled_works+0x1f2/0x4d0 [ 44.308678][ T2216] process_scheduled_works+0x250/0x4d0 [ 44.314449][ T2216] worker_thread+0x23d/0x300 [ 44.319039][ T2216] ? __pfx_worker_thread+0x10/0x10 [ 44.324395][ T2216] kthread+0xe9/0x100 [ 44.328542][ T2216] ? __pfx_kthread+0x10/0x10 [ 44.333326][ T2216] ret_from_fork+0x32/0x40 [ 44.337720][ T2216] ? __pfx_kthread+0x10/0x10 [ 44.342279][ T2216] ret_from_fork_asm+0x1b/0x30 [ 44.347012][ T2216] 2024/02/19 12:41:31 executed programs: 2 2024/02/19 12:41:37 executed programs: 4