syzbot


KMSAN: uninit-value in asix_check_host_enable

Status: upstream: reported C repro on 2022/02/23 09:30
Reported-by: syzbot+8f5f07bb9d6935e2f8d9@syzkaller.appspotmail.com
Fix commit: 920a9fa27e78 net: asix: add proper error handling of usb read errors
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm32 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386 ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-qemu2-riscv64]
First crash: 149d, last: 68d
Patch testing requests:
Created Duration User Patch Repo Result
2022/03/04 07:51 14m mudongliangabcd@gmail.com patch https://github.com/google/kmsan.git master OK

Sample crash report:
asix 1-1:0.0 (unnamed net_device) (uninitialized): Failed to write reg index 0x0000: -71
asix 1-1:0.0 (unnamed net_device) (uninitialized): Failed to enable software MII access
asix 1-1:0.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71
=====================================================
BUG: KMSAN: uninit-value in asix_check_host_enable+0x289/0x330 drivers/net/usb/asix_common.c:84
 asix_check_host_enable+0x289/0x330 drivers/net/usb/asix_common.c:84
 __asix_mdio_write+0x10d/0x5c0 drivers/net/usb/asix_common.c:532
 asix_mdio_write+0xad/0xc0 drivers/net/usb/asix_common.c:550
 asix_phy_reset+0xd5/0x2e0 drivers/net/usb/asix_devices.c:208
 ax88172_bind+0x738/0x9d0 drivers/net/usb/asix_devices.c:275
 usbnet_probe+0x1251/0x4160 drivers/net/usb/usbnet.c:1747
 usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396
 really_probe+0x653/0x14b0 drivers/base/dd.c:596
 __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752
 driver_probe_device drivers/base/dd.c:782 [inline]
 __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899
 bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427
 __device_attach+0x593/0x8e0 drivers/base/dd.c:970
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:1017
 bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487
 device_add+0x1fff/0x26e0 drivers/base/core.c:3405
 usb_set_configuration+0x37e9/0x3ed0 drivers/usb/core/message.c:2170
 usb_generic_driver_probe+0x13c/0x300 drivers/usb/core/generic.c:238
 usb_probe_device+0x309/0x570 drivers/usb/core/driver.c:293
 really_probe+0x653/0x14b0 drivers/base/dd.c:596
 __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752
 driver_probe_device drivers/base/dd.c:782 [inline]
 __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899
 bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427
 __device_attach+0x593/0x8e0 drivers/base/dd.c:970
 device_initial_probe+0x4a/0x60 drivers/base/dd.c:1017
 bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487
 device_add+0x1fff/0x26e0 drivers/base/core.c:3405
 usb_new_device+0x1b8e/0x2950 drivers/usb/core/hub.c:2566
 hub_port_connect drivers/usb/core/hub.c:5358 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]
 port_event drivers/usb/core/hub.c:5660 [inline]
 hub_event+0x58e3/0x89e0 drivers/usb/core/hub.c:5742
 process_one_work+0xdb6/0x1820 kernel/workqueue.c:2307
 worker_thread+0x10b3/0x21e0 kernel/workqueue.c:2454
 kthread+0x3c7/0x500 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30

Local variable smsr created at:
 asix_check_host_enable+0x66/0x330
 __asix_mdio_write+0x10d/0x5c0 drivers/net/usb/asix_common.c:532

CPU: 1 PID: 34 Comm: kworker/1:1 Not tainted 5.17.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
=====================================================

Crashes (109):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kmsan-gce 2022/02/19 03:06 https://github.com/google/kmsan.git master 724946410067 3cd800e4 .config log report syz C KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/04/22 06:21 https://github.com/google/kmsan.git master 33d9269ef6e0 2738b391 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/04/21 18:16 https://github.com/google/kmsan.git master 33d9269ef6e0 2738b391 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/04/21 14:11 https://github.com/google/kmsan.git master 33d9269ef6e0 d4befee1 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/04/20 19:13 https://github.com/google/kmsan.git master 33d9269ef6e0 160a3f31 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/04/18 00:56 https://github.com/google/kmsan.git master 33d9269ef6e0 8bcc32a6 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/04/15 15:36 https://github.com/google/kmsan.git master 33d9269ef6e0 8bcc32a6 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/04/11 11:58 https://github.com/google/kmsan.git master 33d9269ef6e0 e22c3da3 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/04/10 13:51 https://github.com/google/kmsan.git master 33d9269ef6e0 e22c3da3 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/04/10 11:55 https://github.com/google/kmsan.git master 33d9269ef6e0 e22c3da3 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/04/09 16:11 https://github.com/google/kmsan.git master 33d9269ef6e0 e22c3da3 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/04/08 13:35 https://github.com/google/kmsan.git master 33d9269ef6e0 c6ff3e05 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/04/08 03:53 https://github.com/google/kmsan.git master 33d9269ef6e0 c6ff3e05 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/04/07 05:17 https://github.com/google/kmsan.git master 33d9269ef6e0 97582466 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/04/06 02:12 https://github.com/google/kmsan.git master 33d9269ef6e0 0127c10f .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/04/04 13:36 https://github.com/google/kmsan.git master 1978a14f70af 79a2a8fc .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/04/04 11:19 https://github.com/google/kmsan.git master 1978a14f70af 79a2a8fc .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/04/03 07:38 https://github.com/google/kmsan.git master 1978a14f70af 79a2a8fc .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/04/03 04:03 https://github.com/google/kmsan.git master 1978a14f70af 79a2a8fc .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/04/03 00:46 https://github.com/google/kmsan.git master 1978a14f70af 79a2a8fc .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/04/02 16:34 https://github.com/google/kmsan.git master 1978a14f70af 79a2a8fc .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/04/01 22:12 https://github.com/google/kmsan.git master 1978a14f70af 20955a24 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/30 01:44 https://github.com/google/kmsan.git master 1978a14f70af 6bdac766 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/28 07:56 https://github.com/google/kmsan.git master 5d33b1968cb5 89bc8608 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/28 02:14 https://github.com/google/kmsan.git master 5d33b1968cb5 89bc8608 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/27 22:57 https://github.com/google/kmsan.git master 5d33b1968cb5 89bc8608 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/27 12:12 https://github.com/google/kmsan.git master 97c7732c2bb6 89bc8608 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/27 08:04 https://github.com/google/kmsan.git master 97c7732c2bb6 89bc8608 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/26 22:25 https://github.com/google/kmsan.git master 97c7732c2bb6 89bc8608 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/26 20:09 https://github.com/google/kmsan.git master 97c7732c2bb6 89bc8608 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/26 13:17 https://github.com/google/kmsan.git master 97c7732c2bb6 89bc8608 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/26 09:12 https://github.com/google/kmsan.git master 97c7732c2bb6 89bc8608 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/25 23:22 https://github.com/google/kmsan.git master 97c7732c2bb6 89bc8608 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/25 16:24 https://github.com/google/kmsan.git master 97c7732c2bb6 89bc8608 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/25 14:12 https://github.com/google/kmsan.git master 97c7732c2bb6 89bc8608 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/25 10:44 https://github.com/google/kmsan.git master 97c7732c2bb6 89bc8608 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/25 08:33 https://github.com/google/kmsan.git master 97c7732c2bb6 89bc8608 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/24 12:41 https://github.com/google/kmsan.git master 97c7732c2bb6 89bc8608 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/23 23:19 https://github.com/google/kmsan.git master 97c7732c2bb6 5ff41e94 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/22 16:31 https://github.com/google/kmsan.git master 97c7732c2bb6 d88ef0c5 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/22 05:19 https://github.com/google/kmsan.git master 97c7732c2bb6 e2d91b1d .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/21 23:07 https://github.com/google/kmsan.git master 97c7732c2bb6 e2d91b1d .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/21 14:48 https://github.com/google/kmsan.git master 97c7732c2bb6 e2d91b1d .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/21 07:27 https://github.com/google/kmsan.git master 97c7732c2bb6 e2d91b1d .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/20 14:23 https://github.com/google/kmsan.git master 97c7732c2bb6 e2d91b1d .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/20 00:30 https://github.com/google/kmsan.git master 97c7732c2bb6 e2d91b1d .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/19 22:00 https://github.com/google/kmsan.git master 97c7732c2bb6 e2d91b1d .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/17 00:08 https://github.com/google/kmsan.git master 724946410067 dfa9a8ed .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/16 06:08 https://github.com/google/kmsan.git master 724946410067 9e8eaa75 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/15 16:57 https://github.com/google/kmsan.git master 724946410067 9e8eaa75 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/03/15 05:41 https://github.com/google/kmsan.git master 724946410067 9e8eaa75 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce 2022/01/31 02:50 https://github.com/google/kmsan.git master 85cfd6e539bd 495e00c5 .config log report info KMSAN: uninit-value in asix_check_host_enable
ci-upstream-kmsan-gce-386 2022/04/06 12:42 https://github.com/google/kmsan.git master 33d9269ef6e0 86b4b7f8 .config log report info KMSAN: uninit-value in asix_check_host_enable