KMSAN: uninit-value in usb_submit_urb (2)

Status: closed as invalid on 2022/11/07 15:00
Subsystems: usb
[Documentation on labels]
First crash: 2626d, last: 2623d
▶ ▼ Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KMSAN: uninit-value in usb_submit_urb usb 7 1 2639d 2639d 0/29 closed as invalid on 2019/05/23 16:07
▶ ▼ Last patch testing requests (1)
Created Duration User Patch Repo Result
2022/09/01 12:27 7m retest repro https://github.com/google/kmsan.git master error

Sample crash report:
usb 6-1: config 0 descriptor??
==================================================================
BUG: KMSAN: uninit-value in usb_submit_urb+0x7ec/0x1fa0 drivers/usb/core/urb.c:405
CPU: 0 PID: 11923 Comm: kworker/0:3 Not tainted 5.1.0+ #1
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+0x130/0x2a0 mm/kmsan/kmsan.c:622
 kmsan_internal_check_memory+0x974/0xa80 mm/kmsan/kmsan.c:716
 kmsan_handle_urb+0x2b/0x50 mm/kmsan/kmsan.c:768
 usb_submit_urb+0x7ec/0x1fa0 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 drivers/net/can/usb/peak_usb/pcan_usb_pro.c:344 [inline]
 pcan_usb_pro_drv_loaded drivers/net/can/usb/peak_usb/pcan_usb_pro.c:512 [inline]
 pcan_usb_pro_init+0x1319/0x1720 drivers/net/can/usb/peak_usb/pcan_usb_pro.c:902
 peak_usb_create_dev drivers/net/can/usb/peak_usb/pcan_usb_core.c:817 [inline]
 peak_usb_probe+0x1411/0x1b10 drivers/net/can/usb/peak_usb/pcan_usb_core.c:915
 usb_probe_interface+0xd66/0x1320 drivers/usb/core/driver.c:361
 really_probe+0xdae/0x1d80 drivers/base/dd.c:513
 driver_probe_device+0x1b3/0x4f0 drivers/base/dd.c:671
 __device_attach_driver+0x5b8/0x790 drivers/base/dd.c:778
 bus_for_each_drv+0x28e/0x3b0 drivers/base/bus.c:454
 __device_attach+0x454/0x730 drivers/base/dd.c:844
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:891
 bus_probe_device+0x137/0x390 drivers/base/bus.c:514
 device_add+0x288d/0x30e0 drivers/base/core.c:2106
 usb_set_configuration+0x30dc/0x3750 drivers/usb/core/message.c:2027
 generic_probe+0xe7/0x280 drivers/usb/core/generic.c:210
 usb_probe_device+0x14c/0x200 drivers/usb/core/driver.c:266
 really_probe+0xdae/0x1d80 drivers/base/dd.c:513
 driver_probe_device+0x1b3/0x4f0 drivers/base/dd.c:671
 __device_attach_driver+0x5b8/0x790 drivers/base/dd.c:778
 bus_for_each_drv+0x28e/0x3b0 drivers/base/bus.c:454
 __device_attach+0x454/0x730 drivers/base/dd.c:844
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:891
 bus_probe_device+0x137/0x390 drivers/base/bus.c:514
 device_add+0x288d/0x30e0 drivers/base/core.c:2106
 usb_new_device+0x23e5/0x2ff0 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+0x48d1/0x7290 drivers/usb/core/hub.c:5432
 process_one_work+0x1572/0x1f00 kernel/workqueue.c:2269
 process_scheduled_works kernel/workqueue.c:2331 [inline]
 worker_thread+0x189c/0x2460 kernel/workqueue.c:2417
 kthread+0x4b5/0x4f0 kernel/kthread.c:254
 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:208 [inline]
 kmsan_internal_poison_shadow+0x92/0x150 mm/kmsan/kmsan.c:162
 kmsan_kmalloc+0xa4/0x130 mm/kmsan/kmsan_hooks.c:175
 kmem_cache_alloc_trace+0x503/0xae0 mm/slub.c:2801
 kmalloc include/linux/slab.h:547 [inline]
 pcan_usb_pro_drv_loaded drivers/net/can/usb/peak_usb/pcan_usb_pro.c:505 [inline]
 pcan_usb_pro_init+0xe96/0x1720 drivers/net/can/usb/peak_usb/pcan_usb_pro.c:902
 peak_usb_create_dev drivers/net/can/usb/peak_usb/pcan_usb_core.c:817 [inline]
 peak_usb_probe+0x1411/0x1b10 drivers/net/can/usb/peak_usb/pcan_usb_core.c:915
 usb_probe_interface+0xd66/0x1320 drivers/usb/core/driver.c:361
 really_probe+0xdae/0x1d80 drivers/base/dd.c:513
 driver_probe_device+0x1b3/0x4f0 drivers/base/dd.c:671
 __device_attach_driver+0x5b8/0x790 drivers/base/dd.c:778
 bus_for_each_drv+0x28e/0x3b0 drivers/base/bus.c:454
 __device_attach+0x454/0x730 drivers/base/dd.c:844
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:891
 bus_probe_device+0x137/0x390 drivers/base/bus.c:514
 device_add+0x288d/0x30e0 drivers/base/core.c:2106
 usb_set_configuration+0x30dc/0x3750 drivers/usb/core/message.c:2027
 generic_probe+0xe7/0x280 drivers/usb/core/generic.c:210
 usb_probe_device+0x14c/0x200 drivers/usb/core/driver.c:266
 really_probe+0xdae/0x1d80 drivers/base/dd.c:513
 driver_probe_device+0x1b3/0x4f0 drivers/base/dd.c:671
 __device_attach_driver+0x5b8/0x790 drivers/base/dd.c:778
 bus_for_each_drv+0x28e/0x3b0 drivers/base/bus.c:454
 __device_attach+0x454/0x730 drivers/base/dd.c:844
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:891
 bus_probe_device+0x137/0x390 drivers/base/bus.c:514
 device_add+0x288d/0x30e0 drivers/base/core.c:2106
 usb_new_device+0x23e5/0x2ff0 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+0x48d1/0x7290 drivers/usb/core/hub.c:5432
 process_one_work+0x1572/0x1f00 kernel/workqueue.c:2269
 process_scheduled_works kernel/workqueue.c:2331 [inline]
 worker_thread+0x189c/0x2460 kernel/workqueue.c:2417
 kthread+0x4b5/0x4f0 kernel/kthread.c:254
 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 ffff8880a478a810
==================================================================

Crashes (6):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/06/04 03:26 https://github.com/google/kmsan.git master f75e4cfea97f ce07a7ae .config console log report syz C ci-upstream-kmsan-gce
2019/06/07 05:42 https://github.com/google/kmsan.git master f75e4cfea97f 698773cb .config console log report ci-upstream-kmsan-gce
2019/06/07 04:44 https://github.com/google/kmsan.git master f75e4cfea97f 698773cb .config console log report ci-upstream-kmsan-gce
2019/06/05 00:17 https://github.com/google/kmsan.git master f75e4cfea97f e41a20c5 .config console log report ci-upstream-kmsan-gce
2019/06/04 05:30 https://github.com/google/kmsan.git master f75e4cfea97f ce07a7ae .config console log report ci-upstream-kmsan-gce
2019/06/04 01:09 https://github.com/google/kmsan.git master f75e4cfea97f ce07a7ae .config console log report ci-upstream-kmsan-gce
* Struck through repros no longer work on HEAD.