syzbot


KMSAN: uninit-value in smsc95xx_reset

Status: upstream: reported C repro on 2020/08/17 17:51
Subsystems: usb
[Documentation on labels]
Reported-by: syzbot+c74c24b43c9ae534f0e0@syzkaller.appspotmail.com
First crash: 1134d, last: 2h06m
Discussions (1)
Title Replies (including bot) Last reply
KMSAN: uninit-value in smsc95xx_reset 0 (1) 2020/08/17 17:51
Last patch testing requests (9)
Created Duration User Patch Repo Result
2023/06/15 09:34 16m retest repro https://github.com/google/kmsan.git master report log
2023/06/15 09:34 16m retest repro https://github.com/google/kmsan.git master report log
2023/04/06 08:32 26m retest repro https://github.com/google/kmsan.git master report log
2022/12/27 05:31 14m retest repro https://github.com/google/kmsan.git master report log
2022/09/18 03:29 14m retest repro https://github.com/google/kmsan.git master report log
2020/10/02 22:48 21m anant.thazhemadam@gmail.com patch https://github.com/google/kmsan.git master OK
2020/10/02 22:47 21m anant.thazhemadam@gmail.com https://github.com/google/kmsan.git master OK
2020/10/02 05:07 20m anant.thazhemadam@gmail.com patch https://github.com/google/kmsan.git master OK
2020/09/02 23:48 14m dragonjetli@gmail.com https://github.com/google/kmsan.git master report log

Sample crash report:
smsc95xx 1-1:0.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000030: -32
smsc95xx 1-1:0.0 (unnamed net_device) (uninitialized): Error reading E2P_CMD
=====================================================
BUG: KMSAN: uninit-value in smsc95xx_reset+0x409/0x25f0 drivers/net/usb/smsc95xx.c:896
 smsc95xx_reset+0x409/0x25f0 drivers/net/usb/smsc95xx.c:896
 smsc95xx_bind+0x9bc/0x22e0 drivers/net/usb/smsc95xx.c:1131
 usbnet_probe+0x100b/0x4060 drivers/net/usb/usbnet.c:1750
 usb_probe_interface+0xc75/0x1210 drivers/usb/core/driver.c:396
 really_probe+0x506/0xf40 drivers/base/dd.c:658
 __driver_probe_device+0x2a7/0x5d0 drivers/base/dd.c:800
 driver_probe_device+0x72/0x7b0 drivers/base/dd.c:830
 __device_attach_driver+0x55a/0x8f0 drivers/base/dd.c:958
 bus_for_each_drv+0x3ff/0x620 drivers/base/bus.c:457
 __device_attach+0x3bd/0x640 drivers/base/dd.c:1030
 device_initial_probe+0x32/0x40 drivers/base/dd.c:1079
 bus_probe_device+0x3d8/0x5a0 drivers/base/bus.c:532
 device_add+0x16ae/0x1f20 drivers/base/core.c:3622
 usb_set_configuration+0x31c9/0x38c0 drivers/usb/core/message.c:2207
 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+0x506/0xf40 drivers/base/dd.c:658
 __driver_probe_device+0x2a7/0x5d0 drivers/base/dd.c:800
 driver_probe_device+0x72/0x7b0 drivers/base/dd.c:830
 __device_attach_driver+0x55a/0x8f0 drivers/base/dd.c:958
 bus_for_each_drv+0x3ff/0x620 drivers/base/bus.c:457
 __device_attach+0x3bd/0x640 drivers/base/dd.c:1030
 device_initial_probe+0x32/0x40 drivers/base/dd.c:1079
 bus_probe_device+0x3d8/0x5a0 drivers/base/bus.c:532
 device_add+0x16ae/0x1f20 drivers/base/core.c:3622
 usb_new_device+0x15f6/0x22f0 drivers/usb/core/hub.c:2589
 hub_port_connect drivers/usb/core/hub.c:5440 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5580 [inline]
 port_event drivers/usb/core/hub.c:5740 [inline]
 hub_event+0x53bc/0x7290 drivers/usb/core/hub.c:5822
 process_one_work kernel/workqueue.c:2630 [inline]
 process_scheduled_works+0x104e/0x1e70 kernel/workqueue.c:2703
 worker_thread+0xf45/0x1490 kernel/workqueue.c:2784
 kthread+0x3e8/0x540 kernel/kthread.c:388
 ret_from_fork+0x66/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304

Local variable buf.i225 created at:
 smsc95xx_read_reg drivers/net/usb/smsc95xx.c:90 [inline]
 smsc95xx_reset+0x203/0x25f0 drivers/net/usb/smsc95xx.c:892
 smsc95xx_bind+0x9bc/0x22e0 drivers/net/usb/smsc95xx.c:1131

CPU: 1 PID: 773 Comm: kworker/1:2 Not tainted 6.6.0-rc1-syzkaller-00125-ge42bebf6db29 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
Workqueue: usb_hub_wq hub_event
=====================================================

Crashes (335):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/09/16 09:13 upstream e42bebf6db29 0b6a67ac .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/07/06 06:38 https://github.com/google/kmsan.git master 257152fe29be ba5dba36 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/07/05 13:26 https://github.com/google/kmsan.git master 257152fe29be 80298b6f .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2020/08/23 11:32 https://github.com/google/kmsan.git master ce8056d1f79e 1da71ab0 .config console log report syz C ci-upstream-kmsan-gce
2020/08/16 23:41 https://github.com/google/kmsan.git master ce8056d1f79e 424dd8e7 .config console log report syz C ci-upstream-kmsan-gce
2023/09/25 03:28 upstream 6465e260f487 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/23 19:42 upstream d90b0276af8f 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/23 05:06 upstream dc912ba91b7e 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/22 11:22 upstream 27bbf45eae9c 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/22 09:38 upstream 27bbf45eae9c 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/22 08:13 upstream 27bbf45eae9c 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/21 18:59 upstream 42dc814987c1 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/21 16:32 upstream 42dc814987c1 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/18 21:36 upstream ce9ecca0238b 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/18 00:09 upstream e789286468a9 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/16 22:09 upstream 57d88e8a5974 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/15 03:30 upstream 9fdfb15a3dbf 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/14 23:54 upstream 9fdfb15a3dbf 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/14 11:11 upstream aed8aee11130 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/14 07:02 upstream aed8aee11130 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/14 05:17 upstream aed8aee11130 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/14 01:03 upstream 3669558bdf35 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/13 23:18 upstream 3669558bdf35 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/13 17:19 upstream 3669558bdf35 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/13 13:19 upstream 3669558bdf35 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/13 07:34 upstream a747acc0b752 59da8366 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/12 10:13 upstream 0bb80ecc33a8 59da8366 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/12 02:50 upstream 0bb80ecc33a8 59da8366 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/12 01:35 upstream 0bb80ecc33a8 59da8366 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/11 20:38 upstream 0bb80ecc33a8 59da8366 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/11 18:45 upstream 0bb80ecc33a8 59da8366 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/09 11:44 upstream 6099776f9f26 6654cf89 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/08 20:50 upstream a48fa7efaf11 6654cf89 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/07 04:45 upstream 744a759492b5 72324844 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/07 01:20 upstream 744a759492b5 72324844 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/07 01:04 upstream 744a759492b5 72324844 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/06 22:43 upstream 744a759492b5 72324844 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/03 13:10 upstream 92901222f83d 696ea0d2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/03 09:06 upstream 92901222f83d 696ea0d2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/02 18:00 upstream 0468be89b3fa 696ea0d2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/02 16:40 upstream 0468be89b3fa 696ea0d2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/02 14:16 upstream 0468be89b3fa 696ea0d2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/08/31 16:03 upstream ef2a0b7cdbc5 84803932 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/09/11 20:38 upstream 0bb80ecc33a8 59da8366 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce-386 KMSAN: uninit-value in smsc95xx_reset
2023/08/29 14:52 upstream 1c59d383390f 7ba13a15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/08/29 11:23 upstream 727dbda16b83 7ba13a15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/08/29 11:15 upstream 727dbda16b83 7ba13a15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/08/29 08:31 upstream 727dbda16b83 7ba13a15 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/08/27 23:45 upstream 85eb043618bb 03d9c195 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/08/27 12:26 upstream 28f20a19294d 03d9c195 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2023/08/27 00:34 upstream 7d2f353b2682 03d9c195 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kmsan-gce KMSAN: uninit-value in smsc95xx_reset
2020/08/16 23:00 https://github.com/google/kmsan.git master ce8056d1f79e 424dd8e7 .config console log report ci-upstream-kmsan-gce
2021/01/17 07:07 https://github.com/google/kmsan.git master 73d62e81b476 65a7a854 .config console log report info ci-upstream-kmsan-gce-386
* Struck through repros no longer work on HEAD.