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KMSAN: uninit-value in mii_nway_restart

Status: upstream: reported C repro on 2019/06/04 10:32
Labels: usb (incorrect?)
Reported-by: syzbot+1f53a30781af65d2c955@syzkaller.appspotmail.com
First crash: 1461d, last: 2h07m
▶ ▼ Discussions (13)
Title Replies (including bot) Last reply
[syzbot] Monthly usb report (May 2023) 0 (1) 2023/05/31 12:38
[syzbot] Monthly usb report (Apr 2023) 0 (1) 2023/05/01 09:05
[syzbot] Monthly usb report 12 (17) 2023/04/10 16:42
[syzbot] Monthly net report 0 (1) 2023/03/27 11:04
Re: KMSAN: uninit-value in mii_nway_restart 1 (1) 2022/08/30 08:26
Reminder: 67 active syzbot reports in usb subsystem 1 (1) 2019/10/04 03:38
Reminder: 52 active syzbot reports in usb subsystem 1 (1) 2019/08/22 03:28
Reminder: 99 open syzbot bugs in net subsystem 14 (14) 2019/07/31 15:13
Reminder: 67 open syzbot bugs in usb subsystem 1 (1) 2019/07/24 01:35
Reminder: 47 open syzbot bugs in usb subsystem 1 (1) 2019/07/09 19:01
Reminder: 94 open syzbot bugs in net subsystem 1 (1) 2019/06/25 05:48
Reminder: 42 open syzbot bugs in usb subsystem 1 (1) 2019/06/25 03:44
KMSAN: uninit-value in mii_nway_restart 0 (1) 2019/06/04 10:32
▶ ▼ Last patch testing requests (1)
Created Duration User Patch Repo Result
2020/09/20 16:36 19m anant.thazhemadam@gmail.com https://github.com/google/kmsan.git master OK

Sample crash report:
=====================================================
BUG: KMSAN: uninit-value in mii_nway_restart+0x11b/0x1e0 drivers/net/mii.c:465
 mii_nway_restart+0x11b/0x1e0 drivers/net/mii.c:465
 dm9601_bind+0xa1d/0xb60 drivers/net/usb/dm9601.c:431
 usbnet_probe+0xf94/0x3df0 drivers/net/usb/usbnet.c:1745
 usb_probe_interface+0xc75/0x1210 drivers/usb/core/driver.c:396
 really_probe+0x507/0x1000 drivers/base/dd.c:639
 __driver_probe_device+0x300/0x3e0 drivers/base/dd.c:778
 driver_probe_device+0x72/0x7b0 drivers/base/dd.c:808
 __device_attach_driver+0x55a/0x8f0 drivers/base/dd.c:936
 bus_for_each_drv+0x200/0x360 drivers/base/bus.c:427
 __device_attach+0x42b/0x720 drivers/base/dd.c:1008
 device_initial_probe+0x32/0x40 drivers/base/dd.c:1057
 bus_probe_device+0x141/0x3b0 drivers/base/bus.c:487
 device_add+0x1d3c/0x26b0 drivers/base/core.c:3479
 usb_set_configuration+0x30b9/0x37b0 drivers/usb/core/message.c:2171
 usb_generic_driver_probe+0x109/0x2a0 drivers/usb/core/generic.c:238
 usb_probe_device+0x290/0x4a0 drivers/usb/core/driver.c:293
 really_probe+0x507/0x1000 drivers/base/dd.c:639
 __driver_probe_device+0x300/0x3e0 drivers/base/dd.c:778
 driver_probe_device+0x72/0x7b0 drivers/base/dd.c:808
 __device_attach_driver+0x55a/0x8f0 drivers/base/dd.c:936
 bus_for_each_drv+0x200/0x360 drivers/base/bus.c:427
 __device_attach+0x42b/0x720 drivers/base/dd.c:1008
 device_initial_probe+0x32/0x40 drivers/base/dd.c:1057
 bus_probe_device+0x141/0x3b0 drivers/base/bus.c:487
 device_add+0x1d3c/0x26b0 drivers/base/core.c:3479
 usb_new_device+0x163b/0x2340 drivers/usb/core/hub.c:2576
 hub_port_connect drivers/usb/core/hub.c:5408 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5552 [inline]
 port_event drivers/usb/core/hub.c:5712 [inline]
 hub_event+0x5777/0x7890 drivers/usb/core/hub.c:5794
 process_one_work+0xb0d/0x1410 kernel/workqueue.c:2289
 worker_thread+0x107b/0x1d60 kernel/workqueue.c:2436
 kthread+0x31f/0x430 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

Local variable res created at:
 dm9601_mdio_read+0x4d/0xf0 drivers/net/usb/dm9601.c:226
 mii_nway_restart+0x88/0x1e0 drivers/net/mii.c:463

CPU: 1 PID: 1454 Comm: kworker/1:2 Not tainted 6.2.0-syzkaller-81157-g944070199c5e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Workqueue: usb_hub_wq hub_event
=====================================================

Crashes (1777):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Manager Title
2023/03/04 12:49 https://github.com/google/kmsan.git master 944070199c5e f8902b57 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2022/11/24 11:36 https://github.com/google/kmsan.git master ddce02aa9c40 12c66417 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2022/08/09 23:19 https://github.com/google/kmsan.git master 1b070a5d1a2c c2a623d6 .config strace log report syz C ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2019/08/12 00:31 https://github.com/google/kmsan.git master 61ccdad1fcdf acb51638 .config console log report syz C ci-upstream-kmsan-gce
2019/08/11 10:37 https://github.com/google/kmsan.git master 61ccdad1fcdf acb51638 .config console log report syz C ci-upstream-kmsan-gce
2019/08/09 17:23 https://github.com/google/kmsan.git master 61ccdad1fcdf ede31a9b .config console log report syz C ci-upstream-kmsan-gce
2019/07/28 02:28 https://github.com/google/kmsan.git master beaab8a31e0d c85e1c5b .config console log report syz C ci-upstream-kmsan-gce
2019/07/02 09:57 https://github.com/google/kmsan.git master 41550654dedf cccc4302 .config console log report syz C ci-upstream-kmsan-gce
2019/06/04 08:56 https://github.com/google/kmsan.git master f75e4cfea97f ce07a7ae .config console log report syz C ci-upstream-kmsan-gce
2023/06/05 01:44 https://github.com/google/kmsan.git master 2741f1b02117 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/06/04 09:19 https://github.com/google/kmsan.git master 2741f1b02117 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/06/04 04:22 https://github.com/google/kmsan.git master 2741f1b02117 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/06/03 23:05 https://github.com/google/kmsan.git master 2741f1b02117 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/06/03 21:46 https://github.com/google/kmsan.git master 2741f1b02117 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/06/03 16:51 https://github.com/google/kmsan.git master 2741f1b02117 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/06/03 02:26 https://github.com/google/kmsan.git master 2741f1b02117 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/06/02 04:52 https://github.com/google/kmsan.git master 2741f1b02117 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/06/02 01:21 https://github.com/google/kmsan.git master 2741f1b02117 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/06/01 06:49 https://github.com/google/kmsan.git master 2741f1b02117 babc4389 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/31 23:47 https://github.com/google/kmsan.git master 2741f1b02117 e2a77acd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/31 19:06 https://github.com/google/kmsan.git master 2741f1b02117 e2a77acd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/31 10:08 https://github.com/google/kmsan.git master 2741f1b02117 09898419 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/30 16:23 https://github.com/google/kmsan.git master 2741f1b02117 8d5c7541 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/30 02:44 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/29 23:24 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/29 18:58 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/29 15:53 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/29 13:56 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/29 12:26 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/29 11:23 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/29 10:27 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/29 08:14 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/29 06:11 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/29 04:59 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/29 01:32 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/28 22:36 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/28 21:06 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/28 18:13 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/28 17:04 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/28 15:38 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/28 14:20 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/28 09:32 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/28 03:24 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/28 01:37 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/27 21:02 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/27 16:34 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/27 13:43 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/27 12:06 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/27 10:39 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/27 05:48 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/27 01:04 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/26 22:51 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/25 13:55 https://github.com/google/kmsan.git master f93f2feda5d6 0513b3e6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/25 08:10 https://github.com/google/kmsan.git master f93f2feda5d6 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/25 07:08 https://github.com/google/kmsan.git master f93f2feda5d6 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/25 00:31 https://github.com/google/kmsan.git master f93f2feda5d6 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/24 08:57 https://github.com/google/kmsan.git master f93f2feda5d6 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/05/24 04:27 https://github.com/google/kmsan.git master f93f2feda5d6 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in mii_nway_restart
2023/06/02 02:03 https://github.com/google/kmsan.git master 2741f1b02117 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in mii_nway_restart
2023/05/29 09:17 https://github.com/google/kmsan.git master f93f2feda5d6 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in mii_nway_restart
2019/10/28 14:47 https://github.com/google/kmsan.git master d86c15562d02 25bb509e .config console log report ci-upstream-kmsan-gce
2019/06/04 07:39 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.