kmsan boot error: KMSAN: uninit-value in corrupted (2)

kmsan boot error: KMSAN: uninit-value in corrupted (2)

Status: closed as invalid on 2021/11/18 14:05
Subsystems: input
[Documentation on labels]
First crash: 1385d, last: 1385d

▶ ▼ Similar bugs (2)

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	kmsan boot error: KMSAN: uninit-value in corrupted input	-1				20	1395d	1464d	0/29	closed as invalid on 2021/11/05 09:46
upstream	kmsan boot error: KMSAN: uninit-value in corrupted (3) tomoyo	-1				1	1366d	1366d	0/29	auto-closed as invalid on 2022/03/02 10:49

Sample crash report:

input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input2
=====================================================
BUG: KMSAN: uninit-value in genius_detect+0x2e1/0x510 drivers/input/mouse/psmouse-base.c:557
 genius_detect+0x2e1/0x510 drivers/input/mouse/psmouse-base.c:557
 psmouse_do_detect drivers/input/mouse/psmouse-base.c:1009 [inline]
 psmouse_try_protocol drivers/input/mouse/psmouse-base.c:1023 [inline]
 psmouse_extensions+0x1964/0x1b60 drivers/input/mouse/psmouse-base.c:1179
 psmouse_switch_protocol+0x184/0xbb0 drivers/input/mouse/psmouse-base.c:1542
 psmouse_connect+0x14f8/0x22f0 drivers/input/mouse/psmouse-base.c:1632
 serio_connect_driver drivers/input/serio/serio.c:47 [inline]
 serio_driver_probe+0xc7/0x130 drivers/input/serio/serio.c:778
 really_probe+0x66e/0x1510 drivers/base/dd.c:596
 __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:751
 driver_probe_device drivers/base/dd.c:781 [inline]
 __driver_attach+0x6a6/0x1350 drivers/base/dd.c:1140
 bus_for_each_dev+0x210/0x340 drivers/base/bus.c:301
 driver_attach+0x89/0xb0 drivers/base/dd.c:1157
 serio_attach_driver drivers/input/serio/serio.c:807 [inline]
 serio_handle_event+0x1283/0x2830 drivers/input/serio/serio.c:227
 process_one_work+0xdc7/0x1760 kernel/workqueue.c:2297
 worker_thread+0x1101/0x22b0 kernel/workqueue.c:2444
 kthread+0x66b/0x780 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30

Uninit was stored to memory at:
 __ps2_command+0x21c9/0x2200 drivers/input/serio/libps2.c:299
 ps2_command+0x124/0x210 drivers/input/serio/libps2.c:332
 genius_detect+0x18d/0x510 drivers/input/mouse/psmouse-base.c:555
 psmouse_do_detect drivers/input/mouse/psmouse-base.c:1009 [inline]
 psmouse_try_protocol drivers/input/mouse/psmouse-base.c:1023 [inline]
 psmouse_extensions+0x1964/0x1b60 drivers/input/mouse/psmouse-base.c:1179
 psmouse_switch_protocol+0x184/0xbb0 drivers/input/mouse/psmouse-base.c:1542
 psmouse_connect+0x14f8/0x22f0 drivers/input/mouse/psmouse-base.c:1632
 serio_connect_driver drivers/input/serio/serio.c:47 [inline]
 serio_driver_probe+0xc7/0x130 drivers/input/serio/serio.c:778
 really_probe+0x66e/0x1510 drivers/base/dd.c:596
 __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:751
 driver_probe_device drivers/base/dd.c:781 [inline]
 __driver_attach+0x6a6/0x1350 drivers/base/dd.c:1140
 bus_for_each_dev+0x210/0x340 drivers/base/bus.c:301
 driver_attach+0x89/0xb0 drivers/base/dd.c:1157
 serio_attach_driver drivers/input/serio/serio.c:807 [inline]
 serio_handle_event+0x1283/0x2830 drivers/input/serio/serio.c:227
 process_one_work+0xdc7/0x1760 kernel/workqueue.c:2297
 worker_thread+0x1101/0x22b0 kernel/workqueue.c:2444
 kthread+0x66b/0x780 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30

Uninit was stored to memory at:
 __ps2_command+0x10f7/0x2200 drivers/input/serio/libps2.c:253
 ps2_command+0x124/0x210 drivers/input/serio/libps2.c:332
 genius_detect+0x18d/0x510 drivers/input/mouse/psmouse-base.c:555
 psmouse_do_detect drivers/input/mouse/psmouse-base.c:1009 [inline]
 psmouse_try_protocol drivers/input/mouse/psmouse-base.c:1023 [inline]
 psmouse_extensions+0x1964/0x1b60 drivers/input/mouse/psmouse-base.c:1179
 psmouse_switch_protocol+0x184/0xbb0 drivers/input/mouse/psmouse-base.c:1542
 psmouse_connect+0x14f8/0x22f0 drivers/input/mouse/psmouse-base.c:1632
 serio_connect_driver drivers/input/serio/serio.c:47 [inline]
 serio_driver_probe+0xc7/0x130 drivers/input/serio/serio.c:778
 really_probe+0x66e/0x1510 drivers/base/dd.c:596
 __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:751
 driver_probe_device drivers/base/dd.c:781 [inline]
 __driver_attach+0x6a6/0x1350 drivers/base/dd.c:1140
 bus_for_each_dev+0x210/0x340 drivers/base/bus.c:301
 driver_attach+0x89/0xb0 drivers/base/dd.c:1157
 serio_attach_driver drivers/input/serio/serio.c:807 [inline]
 serio_handle_event+0x1283/0x2830 drivers/input/serio/serio.c:227
 process_one_work+0xdc7/0x1760 kernel/workqueue.c:2297
 worker_thread+0x1101/0x22b0 kernel/workqueue.c:2444
 kthread+0x66b/0x780 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30

Local variable param created at:
 genius_detect+0x6b/0x510 drivers/input/mouse/psmouse-base.c:548
 psmouse_do_detect drivers/input/mouse/psmouse-base.c:1009 [inline]
 psmouse_try_protocol drivers/input/mouse/psmouse-base.c:1023 [inline]
 psmouse_extensions+0x1964/0x1b60 drivers/input/mouse/psmouse-base.c:1179
=====================================================

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2021/11/13 05:56	https://github.com/google/kmsan.git master	386004877847	83f5c9b5	.config	console log	report					ci-upstream-kmsan-gce-386	kmsan boot error: KMSAN: uninit-value in corrupted

* ~~Struck through~~ repros no longer work on HEAD.