peak_usb 6-1:0.146: PEAK-System PCAN-USB X6 v0 fw v0.0.0 (2 channels) ================================================================== BUG: KMSAN: kernel-usb-infoleak in usb_submit_urb+0x7ef/0x1f50 drivers/usb/core/urb.c:405 CPU: 1 PID: 4116 Comm: kworker/1:3 Not tainted 5.2.0-rc4+ #7 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x191/0x1f0 lib/dump_stack.c:113 kmsan_report+0x162/0x2d0 mm/kmsan/kmsan.c:611 kmsan_internal_check_memory+0x974/0xa80 mm/kmsan/kmsan.c:705 kmsan_handle_urb+0x28/0x40 mm/kmsan/kmsan_hooks.c:617 usb_submit_urb+0x7ef/0x1f50 drivers/usb/core/urb.c:405 usb_start_wait_urb+0x143/0x410 drivers/usb/core/message.c:58 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x49f/0x7f0 drivers/usb/core/message.c:156 pcan_usb_pro_send_req+0x26b/0x3e0 drivers/net/can/usb/peak_usb/pcan_usb_pro.c:336 pcan_usb_fd_drv_loaded drivers/net/can/usb/peak_usb/pcan_usb_fd.c:460 [inline] pcan_usb_fd_init+0x16ee/0x1900 drivers/net/can/usb/peak_usb/pcan_usb_fd.c:885 peak_usb_create_dev drivers/net/can/usb/peak_usb/pcan_usb_core.c:809 [inline] peak_usb_probe+0x1416/0x1b20 drivers/net/can/usb/peak_usb/pcan_usb_core.c:907 usb_probe_interface+0xd19/0x1310 drivers/usb/core/driver.c:361 really_probe+0x1344/0x1d90 drivers/base/dd.c:513 driver_probe_device+0x1ba/0x510 drivers/base/dd.c:670 __device_attach_driver+0x5b8/0x790 drivers/base/dd.c:777 bus_for_each_drv+0x28e/0x3b0 drivers/base/bus.c:454 __device_attach+0x489/0x750 drivers/base/dd.c:843 device_initial_probe+0x4a/0x60 drivers/base/dd.c:890 bus_probe_device+0x131/0x390 drivers/base/bus.c:514 device_add+0x25b5/0x2df0 drivers/base/core.c:2111 usb_set_configuration+0x309f/0x3710 drivers/usb/core/message.c:2027 generic_probe+0xe7/0x280 drivers/usb/core/generic.c:210 usb_probe_device+0x146/0x200 drivers/usb/core/driver.c:266 really_probe+0x1344/0x1d90 drivers/base/dd.c:513 driver_probe_device+0x1ba/0x510 drivers/base/dd.c:670 __device_attach_driver+0x5b8/0x790 drivers/base/dd.c:777 bus_for_each_drv+0x28e/0x3b0 drivers/base/bus.c:454 __device_attach+0x489/0x750 drivers/base/dd.c:843 device_initial_probe+0x4a/0x60 drivers/base/dd.c:890 bus_probe_device+0x131/0x390 drivers/base/bus.c:514 device_add+0x25b5/0x2df0 drivers/base/core.c:2111 usb_new_device+0x23e5/0x2fb0 drivers/usb/core/hub.c:2534 hub_port_connect drivers/usb/core/hub.c:5089 [inline] hub_port_connect_change drivers/usb/core/hub.c:5204 [inline] port_event drivers/usb/core/hub.c:5350 [inline] hub_event+0x5853/0x7320 drivers/usb/core/hub.c:5432 process_one_work+0x1572/0x1f00 kernel/workqueue.c:2269 worker_thread+0x111b/0x2460 kernel/workqueue.c:2415 kthread+0x4b5/0x4f0 kernel/kthread.c:256 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:355 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:201 [inline] kmsan_internal_poison_shadow+0x53/0xa0 mm/kmsan/kmsan.c:160 kmsan_kmalloc+0xa4/0x130 mm/kmsan/kmsan_hooks.c:178 kmem_cache_alloc_trace+0x503/0xae0 mm/slub.c:2793 kmalloc include/linux/slab.h:547 [inline] pcan_usb_fd_init+0x446/0x1900 drivers/net/can/usb/peak_usb/pcan_usb_fd.c:844 peak_usb_create_dev drivers/net/can/usb/peak_usb/pcan_usb_core.c:809 [inline] peak_usb_probe+0x1416/0x1b20 drivers/net/can/usb/peak_usb/pcan_usb_core.c:907 usb_probe_interface+0xd19/0x1310 drivers/usb/core/driver.c:361 really_probe+0x1344/0x1d90 drivers/base/dd.c:513 driver_probe_device+0x1ba/0x510 drivers/base/dd.c:670 __device_attach_driver+0x5b8/0x790 drivers/base/dd.c:777 bus_for_each_drv+0x28e/0x3b0 drivers/base/bus.c:454 __device_attach+0x489/0x750 drivers/base/dd.c:843 device_initial_probe+0x4a/0x60 drivers/base/dd.c:890 bus_probe_device+0x131/0x390 drivers/base/bus.c:514 device_add+0x25b5/0x2df0 drivers/base/core.c:2111 usb_set_configuration+0x309f/0x3710 drivers/usb/core/message.c:2027 generic_probe+0xe7/0x280 drivers/usb/core/generic.c:210 usb_probe_device+0x146/0x200 drivers/usb/core/driver.c:266 really_probe+0x1344/0x1d90 drivers/base/dd.c:513 driver_probe_device+0x1ba/0x510 drivers/base/dd.c:670 __device_attach_driver+0x5b8/0x790 drivers/base/dd.c:777 bus_for_each_drv+0x28e/0x3b0 drivers/base/bus.c:454 __device_attach+0x489/0x750 drivers/base/dd.c:843 device_initial_probe+0x4a/0x60 drivers/base/dd.c:890 bus_probe_device+0x131/0x390 drivers/base/bus.c:514 device_add+0x25b5/0x2df0 drivers/base/core.c:2111 usb_new_device+0x23e5/0x2fb0 drivers/usb/core/hub.c:2534 hub_port_connect drivers/usb/core/hub.c:5089 [inline] hub_port_connect_change drivers/usb/core/hub.c:5204 [inline] port_event drivers/usb/core/hub.c:5350 [inline] hub_event+0x5853/0x7320 drivers/usb/core/hub.c:5432 process_one_work+0x1572/0x1f00 kernel/workqueue.c:2269 worker_thread+0x111b/0x2460 kernel/workqueue.c:2415 kthread+0x4b5/0x4f0 kernel/kthread.c:256 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:355 Bytes 2-15 of 16 are uninitialized Memory access of size 16 starts at ffff88804d717a00 ==================================================================