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KMSAN: uninit-value in efuse_one_byte_read (2)

Status: auto-closed as invalid on 2022/08/25 12:32
Subsystems: staging
[Documentation on labels]
Reported-by: syzbot+1b535a057d0360bbcc56@syzkaller.appspotmail.com
First crash: 872d, last: 728d
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
[syzbot] KMSAN: uninit-value in efuse_one_byte_read (2) 0 (1) 2021/12/10 12:59
▶ ▼ Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KMSAN: uninit-value in efuse_one_byte_read staging 1 1122d 1122d 0/26 auto-closed as invalid on 2021/07/27 12:25
upstream KMSAN: uninit-value in r871xu_drv_init usb C 7342 673d 1784d 22/26 fixed on 2023/02/24 13:50

Sample crash report:
=====================================================
BUG: KMSAN: uninit-value in efuse_one_byte_read+0x204/0x2e0 drivers/staging/rtl8712/rtl8712_efuse.c:76
 efuse_one_byte_read+0x204/0x2e0 drivers/staging/rtl8712/rtl8712_efuse.c:76
 r8712_efuse_pg_packet_read+0x2ba/0xd40 drivers/staging/rtl8712/rtl8712_efuse.c:245
 r871xu_drv_init+0x1bc0/0x3070 drivers/staging/rtl8712/usb_intf.c:440
 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 data created at:
 usb_read8+0x5d/0x130 drivers/staging/rtl8712/usb_ops.c:33
 r8712_read8+0xa5/0xd0 drivers/staging/rtl8712/rtl8712_io.c:29

CPU: 0 PID: 22765 Comm: kworker/0:20 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 (25):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/03/16 15:32 https://github.com/google/kmsan.git master 724946410067 9e8eaa75 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in efuse_one_byte_read
2022/03/15 15:13 https://github.com/google/kmsan.git master 724946410067 9e8eaa75 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in efuse_one_byte_read
2022/03/13 19:09 https://github.com/google/kmsan.git master 724946410067 9e8eaa75 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in efuse_one_byte_read
2022/03/01 18:09 https://github.com/google/kmsan.git master 724946410067 45a13a73 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in efuse_one_byte_read
2022/03/01 03:31 https://github.com/google/kmsan.git master 724946410067 45a13a73 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in efuse_one_byte_read
2022/02/25 08:13 https://github.com/google/kmsan.git master 724946410067 7c337266 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in efuse_one_byte_read
2022/02/15 14:12 https://github.com/google/kmsan.git master 85cfd6e539bd 8b9ca619 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in efuse_one_byte_read
2022/02/07 02:28 https://github.com/google/kmsan.git master 85cfd6e539bd a7dab638 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in efuse_one_byte_read
2022/01/30 11:09 https://github.com/google/kmsan.git master 85cfd6e539bd 495e00c5 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in efuse_one_byte_read
2022/01/23 20:08 https://github.com/google/kmsan.git master 85cfd6e539bd 214351e1 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in efuse_one_byte_read
2022/01/23 06:13 https://github.com/google/kmsan.git master 85cfd6e539bd 214351e1 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in efuse_one_byte_read
2022/01/19 01:58 https://github.com/google/kmsan.git master fa3879a274df 731a2d23 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in efuse_one_byte_read
2022/01/18 17:38 https://github.com/google/kmsan.git master fa3879a274df 731a2d23 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in efuse_one_byte_read
2021/12/27 04:37 https://github.com/google/kmsan.git master 81c325bbf94e e4f103c4 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in efuse_one_byte_read
2021/12/18 16:37 https://github.com/google/kmsan.git master b0a8b5053e8b 44068e19 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in efuse_one_byte_read
2021/12/17 16:02 https://github.com/google/kmsan.git master b0a8b5053e8b 44068e19 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in efuse_one_byte_read
2021/12/06 18:02 https://github.com/google/kmsan.git master cdfb223e7e63 579a8754 .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in efuse_one_byte_read
2021/12/05 07:42 https://github.com/google/kmsan.git master b0f85c4ccdd4 a617004c .config console log report info ci-upstream-kmsan-gce KMSAN: uninit-value in efuse_one_byte_read
2022/01/13 03:54 https://github.com/google/kmsan.git master fa3879a274df 44d1319a .config console log report info ci-upstream-kmsan-gce-386 KMSAN: uninit-value in efuse_one_byte_read
2021/12/05 22:35 https://github.com/google/kmsan.git master b0f85c4ccdd4 a617004c .config console log report info ci-upstream-kmsan-gce-386 KMSAN: uninit-value in efuse_one_byte_read
2022/04/27 12:31 https://github.com/google/kmsan.git master d6e2c8c7eb40 1fa34c1b .config console log report info ci-upstream-kmsan-gce KMSAN: kernel-usb-infoleak in r8712_usbctrl_vendorreq
2022/04/24 09:07 https://github.com/google/kmsan.git master b834db009dc5 131df97d .config console log report info ci-upstream-kmsan-gce KMSAN: kernel-usb-infoleak in r8712_usbctrl_vendorreq
2022/04/18 06:04 https://github.com/google/kmsan.git master 33d9269ef6e0 8bcc32a6 .config console log report info ci-upstream-kmsan-gce KMSAN: kernel-usb-infoleak in r8712_usbctrl_vendorreq
2022/04/02 05:02 https://github.com/google/kmsan.git master 1978a14f70af 79a2a8fc .config console log report info ci-upstream-kmsan-gce KMSAN: kernel-usb-infoleak in r8712_usbctrl_vendorreq
2022/03/29 23:51 https://github.com/google/kmsan.git master 1978a14f70af 6bdac766 .config console log report info ci-upstream-kmsan-gce KMSAN: kernel-usb-infoleak in r8712_usbctrl_vendorreq
* Struck through repros no longer work on HEAD.