ci2 starts bisection 2023-04-19 06:59:58.298739461 +0000 UTC m=+3837.920810856 bisecting fixing commit since 7eaef76fbc4621ced374c85dbc000dd80dc681d7 building syzkaller on 7939252e4ddf50bbb9912069a40d32f6c83c4f8e ensuring issue is reproducible on original commit 7eaef76fbc4621ced374c85dbc000dd80dc681d7 testing commit 7eaef76fbc4621ced374c85dbc000dd80dc681d7 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: f865be284f02e73166d1ec706ff60877c9255def592f5ab2c0868c740369ceb0 run #0: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc0078a2f50] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #1: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc0078a3040] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #2: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc002451450] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #3: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc0076a2190] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #4: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc0024514f0] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #5: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc008890050] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #6: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc0088902d0] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #7: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc0013ea2d0] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #8: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc0024503c0] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #9: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc0024505f0] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #10: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc0013ea5a0] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #11: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc0013ea910] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #12: crashed: WARNING in media_create_pad_link run #13: crashed: WARNING in media_create_pad_link run #14: crashed: WARNING in media_create_pad_link run #15: crashed: WARNING in media_create_pad_link run #16: crashed: WARNING in media_create_pad_link run #17: crashed: WARNING in media_create_pad_link run #18: crashed: WARNING in media_create_pad_link run #19: crashed: WARNING in media_create_pad_link testing current HEAD 0102425ac76bd184704c698cab7cb4fe37997556 testing commit 0102425ac76bd184704c698cab7cb4fe37997556 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 96679c901766d2c4b91bdba305be40a89b39c9e3363a2d000d660a1160b81b6f run #0: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc000c8ab90] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #1: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc000c8ac30] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #2: crashed: WARNING in media_create_pad_link run #3: crashed: WARNING in media_create_pad_link run #4: crashed: WARNING in media_create_pad_link run #5: crashed: WARNING in media_create_pad_link run #6: crashed: WARNING in media_create_pad_link run #7: crashed: WARNING in media_create_pad_link run #8: crashed: WARNING in media_create_pad_link run #9: crashed: WARNING in media_create_pad_link revisions tested: 2, total time: 1h27m41.113633023s (build: 1h19m22.437829193s, test: 6m2.812524563s) the crash still happens on HEAD commit msg: Linux 6.1.24 crash: WARNING in media_create_pad_link usb 1-1: config 0 descriptor?? usb 1-1: Found UVC 0.00 device (0bd3:0d55) uvcvideo 1-1:0.0: Entity type for entity Output 255 was not initialized! ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4325 at drivers/media/mc/mc-entity.c:1021 media_create_pad_link+0x768/0x8a4 Modules linked in: CPU: 1 PID: 4325 Comm: kworker/1:4 Not tainted 6.1.24-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 Workqueue: usb_hub_wq hub_event pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : media_create_pad_link+0x768/0x8a4 lr : uvc_mc_create_links drivers/media/usb/uvc/uvc_entity.c:50 [inline] lr : uvc_mc_register_entities+0x508/0x688 drivers/media/usb/uvc/uvc_entity.c:151 sp : ffff80001c296790 x29: ffff80001c2967d0 x28: ffff0000d9280800 x27: ffff0000d9361a00 x26: ffff0000d93619d0 x25: ffff0000d9361880 x24: 0000000000000000 x23: 0000000000000001 x22: ffff0000d92808b8 x21: 0000000000000000 x20: dfff800000000000 x19: ffff0000d9280880 x18: ffff80001c2964c0 x17: 74696e6920746f6e x16: ffff800008203558 x15: 0000000000015dfc x14: 00000000c1097887 x13: dfff800000000000 x12: 0000000000000001 x11: 0000000000000001 x10: 0000000000000005 x9 : 0000000000000000 x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff800017293538 x4 : 0000000000000003 x3 : 0000000000000000 x2 : ffff0000d9361880 x1 : 0000000000000000 x0 : 00000000ffffffea Call trace: media_create_pad_link+0x768/0x8a4 uvc_mc_create_links drivers/media/usb/uvc/uvc_entity.c:50 [inline] uvc_mc_register_entities+0x508/0x688 drivers/media/usb/uvc/uvc_entity.c:151 uvc_register_chains+0x304/0x3c8 drivers/media/usb/uvc/uvc_driver.c:2034 uvc_probe+0x6c70/0x741c drivers/media/usb/uvc/uvc_driver.c:2171 usb_probe_interface+0x3e4/0x810 drivers/usb/core/driver.c:396 really_probe+0x30c/0x8cc drivers/base/dd.c:639 __driver_probe_device+0x218/0x37c drivers/base/dd.c:778 driver_probe_device+0x70/0x2a4 drivers/base/dd.c:808 __device_attach_driver+0x2a4/0x3fc drivers/base/dd.c:936 bus_for_each_drv+0x138/0x19c drivers/base/bus.c:427 __device_attach+0x228/0x3c8 drivers/base/dd.c:1008 device_initial_probe+0x14/0x20 drivers/base/dd.c:1057 bus_probe_device+0x184/0x190 drivers/base/bus.c:487 device_add+0x68c/0xb94 drivers/base/core.c:3664 usb_set_configuration+0x1274/0x1730 drivers/usb/core/message.c:2170 usb_generic_driver_probe+0x7c/0x114 drivers/usb/core/generic.c:238 usb_probe_device+0xbc/0x1e0 drivers/usb/core/driver.c:293 really_probe+0x30c/0x8cc drivers/base/dd.c:639 __driver_probe_device+0x218/0x37c drivers/base/dd.c:778 driver_probe_device+0x70/0x2a4 drivers/base/dd.c:808 __device_attach_driver+0x2a4/0x3fc drivers/base/dd.c:936 bus_for_each_drv+0x138/0x19c drivers/base/bus.c:427 __device_attach+0x228/0x3c8 drivers/base/dd.c:1008 device_initial_probe+0x14/0x20 drivers/base/dd.c:1057 bus_probe_device+0x184/0x190 drivers/base/bus.c:487 device_add+0x68c/0xb94 drivers/base/core.c:3664 usb_new_device+0x874/0x1188 drivers/usb/core/hub.c:2575 hub_port_connect drivers/usb/core/hub.c:5355 [inline] hub_port_connect_change drivers/usb/core/hub.c:5499 [inline] port_event drivers/usb/core/hub.c:5655 [inline] hub_event+0x1c7c/0x37b8 drivers/usb/core/hub.c:5737 process_one_work+0x6c4/0x117c kernel/workqueue.c:2289 worker_thread+0x7dc/0xe2c kernel/workqueue.c:2436 kthread+0x20c/0x288 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 irq event stamp: 83868 hardirqs last enabled at (83867): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (83867): [] _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194 hardirqs last disabled at (83868): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (82178): [] softirq_handle_end kernel/softirq.c:414 [inline] softirqs last enabled at (82178): [] __do_softirq+0xc14/0xea0 kernel/softirq.c:600 softirqs last disabled at (82061): [] ____do_softirq+0x10/0x1c arch/arm64/kernel/irq.c:79 ---[ end trace 0000000000000000 ]--- usb 1-1: Failed to create links for entity 255 usb 1-1: Failed to register entities (-22). usb 1-1: USB disconnect, device number 2 usb 1-1: new high-speed USB device number 4 using dummy_hcd usb 1-1: Using ep0 maxpacket: 8 usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config usb 1-1: New USB device found, idVendor=0bd3, idProduct=0d55, bcdDevice=69.6a usb 1-1: New USB device strings: Mfr=64, Product=0, SerialNumber=0 usb 1-1: Manufacturer: syz usb 1-1: config 0 descriptor?? usb 1-1: Found UVC 0.00 device (0bd3:0d55) uvcvideo 1-1:0.0: Entity type for entity Output 255 was not initialized! ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4325 at drivers/media/mc/mc-entity.c:1021 media_create_pad_link+0x768/0x8a4 Modules linked in: CPU: 1 PID: 4325 Comm: kworker/1:4 Tainted: G W 6.1.24-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 Workqueue: usb_hub_wq hub_event pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : media_create_pad_link+0x768/0x8a4 lr : uvc_mc_create_links drivers/media/usb/uvc/uvc_entity.c:50 [inline] lr : uvc_mc_register_entities+0x508/0x688 drivers/media/usb/uvc/uvc_entity.c:151 sp : ffff80001c296790 x29: ffff80001c2967d0 x28: ffff0000d642e000 x27: ffff0000d3a75200 x26: ffff0000d3a751d0 x25: ffff0000d3a75080 x24: 0000000000000000 x23: 0000000000000001 x22: ffff0000d642e0b8 x21: 0000000000000000 x20: dfff800000000000 x19: ffff0000d642e080 x18: ffffffffffffffff x17: 74696e6920746f6e x16: ffff800008203558 x15: 0000000000000000 x14: 1ffff000028400b0 x13: dfff800000000000 x12: 0000000000000001 x11: 0000000000000001 x10: 0000000000000005 x9 : 0000000000000000 x8 : 0000000000000000 x7 : ffff80000da0cd44 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000003 x3 : 0000000000000000 x2 : ffff0000d3a75080 x1 : 0000000000000000 x0 : 00000000ffffffea Call trace: media_create_pad_link+0x768/0x8a4 uvc_mc_create_links drivers/media/usb/uvc/uvc_entity.c:50 [inline] uvc_mc_register_entities+0x508/0x688 drivers/media/usb/uvc/uvc_entity.c:151 uvc_register_chains+0x304/0x3c8 drivers/media/usb/uvc/uvc_driver.c:2034 uvc_probe+0x6c70/0x741c drivers/media/usb/uvc/uvc_driver.c:2171 usb_probe_interface+0x3e4/0x810 drivers/usb/core/driver.c:396 really_probe+0x30c/0x8cc drivers/base/dd.c:639 __driver_probe_device+0x218/0x37c drivers/base/dd.c:778 driver_probe_device+0x70/0x2a4 drivers/base/dd.c:808 __device_attach_driver+0x2a4/0x3fc drivers/base/dd.c:936 bus_for_each_drv+0x138/0x19c drivers/base/bus.c:427 __device_attach+0x228/0x3c8 drivers/base/dd.c:1008 device_initial_probe+0x14/0x20 drivers/base/dd.c:1057 bus_probe_device+0x184/0x190 drivers/base/bus.c:487 device_add+0x68c/0xb94 drivers/base/core.c:3664 usb_set_configuration+0x1274/0x1730 drivers/usb/core/message.c:2170 usb_generic_driver_probe+0x7c/0x114 drivers/usb/core/generic.c:238 usb_probe_device+0xbc/0x1e0 drivers/usb/core/driver.c:293 really_probe+0x30c/0x8cc drivers/base/dd.c:639 __driver_probe_device+0x218/0x37c drivers/base/dd.c:778 driver_probe_device+0x70/0x2a4 drivers/base/dd.c:808 __device_attach_driver+0x2a4/0x3fc drivers/base/dd.c:936 bus_for_each_drv+0x138/0x19c drivers/base/bus.c:427 __device_attach+0x228/0x3c8 drivers/base/dd.c:1008 device_initial_probe+0x14/0x20 drivers/base/dd.c:1057 bus_probe_device+0x184/0x190 drivers/base/bus.c:487 device_add+0x68c/0xb94 drivers/base/core.c:3664 usb_new_device+0x874/0x1188 drivers/usb/core/hub.c:2575 hub_port_connect drivers/usb/core/hub.c:5355 [inline] hub_port_connect_change drivers/usb/core/hub.c:5499 [inline] port_event drivers/usb/core/hub.c:5655 [inline] hub_event+0x1c7c/0x37b8 drivers/usb/core/hub.c:5737 process_one_work+0x6c4/0x117c kernel/workqueue.c:2289 worker_thread+0x7dc/0xe2c kernel/workqueue.c:2436 kthread+0x20c/0x288 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 irq event stamp: 92620 hardirqs last enabled at (92619): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (92619): [] _raw_spin_unlock_irqrestore+0x48/0xac kernel/locking/spinlock.c:194 hardirqs last disabled at (92620): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (89836): [] local_bh_enable+0xc/0x2c include/linux/bottom_half.h:32 softirqs last disabled at (89834): [] local_bh_disable+0xc/0x2c include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- usb 1-1: Failed to create links for entity 255 usb 1-1: Failed to register entities (-22). usb 1-1: USB disconnect, device number 4