IPVS: sync thread started: state = BACKUP, mcast_ifn = veth1, syncid = 4, id = 0 misc userio: Buffer overflowed, userio client isn't keeping up ================================================================== BUG: KMSAN: uninit-value in synaptics_detect+0x207/0x2c0 drivers/input/mouse/synaptics.c:112 CPU: 0 PID: 2302 Comm: kworker/0:2 Not tainted 4.19.0+ #79 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_long serio_handle_event Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x32d/0x480 lib/dump_stack.c:113 kmsan_report+0x19f/0x300 mm/kmsan/kmsan.c:911 __msan_warning+0x76/0xd0 mm/kmsan/kmsan_instr.c:415 synaptics_detect+0x207/0x2c0 drivers/input/mouse/synaptics.c:112 psmouse_do_detect drivers/input/mouse/psmouse-base.c:1011 [inline] psmouse_extensions+0x117e/0x3930 drivers/input/mouse/psmouse-base.c:1106 psmouse_switch_protocol+0x184/0xdc0 drivers/input/mouse/psmouse-base.c:1544 psmouse_connect+0x14d3/0x2380 drivers/input/mouse/psmouse-base.c:1634 serio_connect_driver drivers/input/serio/serio.c:59 [inline] serio_driver_probe+0xe3/0x150 drivers/input/serio/serio.c:790 really_probe+0x98a/0x1410 drivers/base/dd.c:500 driver_probe_device+0x1b4/0x4f0 drivers/base/dd.c:662 __device_attach_driver+0x63b/0x750 drivers/base/dd.c:758 bus_for_each_drv+0x28e/0x3b0 drivers/base/bus.c:461 __device_attach+0x444/0x6d0 drivers/base/dd.c:815 device_initial_probe+0x4a/0x60 drivers/base/dd.c:862 bus_probe_device+0x137/0x390 drivers/base/bus.c:521 device_add+0x2692/0x2c90 drivers/base/core.c:1927 serio_add_port drivers/input/serio/serio.c:554 [inline] serio_handle_event+0x1cee/0x2650 drivers/input/serio/serio.c:222 process_one_work+0x19fe/0x25f0 kernel/workqueue.c:2153 worker_thread+0x1601/0x2bd0 kernel/workqueue.c:2296 kthread+0x5e7/0x620 kernel/kthread.c:247 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:416 Local variable description: ----param@synaptics_detect Variable was created at: synaptics_detect+0x5d/0x2c0 drivers/input/mouse/synaptics.c:100 psmouse_do_detect drivers/input/mouse/psmouse-base.c:1011 [inline] psmouse_extensions+0x117e/0x3930 drivers/input/mouse/psmouse-base.c:1106 ==================================================================