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BUG: KCSAN: data-race in __ps2_command / ps2_handle_response

write to 0xffff8881008fea50 of 8 bytes by interrupt on cpu 0:
 ps2_handle_response+0x98/0x140 drivers/input/serio/libps2.c:466
 psmouse_interrupt+0x6d4/0x930 drivers/input/mouse/psmouse-base.c:369
 serio_interrupt+0x5d/0xe0 drivers/input/serio/serio.c:1002
 i8042_interrupt+0x39e/0x720 drivers/input/serio/i8042.c:602
 __handle_irq_event_percpu+0x93/0x3f0 kernel/irq/handle.c:156
 handle_irq_event_percpu kernel/irq/handle.c:196 [inline]
 handle_irq_event+0xb0/0x160 kernel/irq/handle.c:213
 handle_edge_irq+0x17e/0x600 kernel/irq/chip.c:819
 generic_handle_irq_desc include/linux/irqdesc.h:158 [inline]
 handle_irq arch/x86/kernel/irq.c:231 [inline]
 __common_interrupt+0x38/0xb0 arch/x86/kernel/irq.c:250
 common_interrupt+0x73/0x90 arch/x86/kernel/irq.c:240
 asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:638
 kcsan_setup_watchpoint+0x8b/0x3e0 kernel/kcsan/core.c:437
 __vring_new_virtqueue+0x402/0x570 drivers/virtio/virtio_ring.c:2125
 vring_create_virtqueue_split drivers/virtio/virtio_ring.c:894 [inline]
 vring_create_virtqueue+0xf34/0x1040 drivers/virtio/virtio_ring.c:2152
 setup_vq+0x118/0x280 drivers/virtio/virtio_pci_legacy.c:137
 vp_setup_vq+0x7c/0x1d0 drivers/virtio/virtio_pci_common.c:189
 vp_find_vqs_msix+0x70d/0x8c0 drivers/virtio/virtio_pci_common.c:323
 vp_find_vqs+0x4f/0x310 drivers/virtio/virtio_pci_common.c:400
 virtio_find_vqs include/linux/virtio_config.h:206 [inline]
 virtscsi_init+0x2cb/0x610 drivers/scsi/virtio_scsi.c:819
 virtscsi_restore+0x49/0x910 drivers/scsi/virtio_scsi.c:953
 virtio_device_restore+0x27d/0x3d0 drivers/virtio/virtio.c:432
 virtio_pci_restore+0x53/0x60 drivers/virtio/virtio_pci_common.c:484
 pci_pm_resume+0x136/0x2c0 drivers/pci/pci-driver.c:953
 dpm_run_callback drivers/base/power/main.c:490 [inline]
 device_resume+0x328/0x940 drivers/base/power/main.c:967
 async_resume+0x2b/0x130 drivers/base/power/main.c:987
 async_run_entry_fn+0x4a/0x170 kernel/async.c:127
 process_one_work+0x3e9/0x8f0 kernel/workqueue.c:2276
 worker_thread+0x636/0xae0 kernel/workqueue.c:2422
 kthread+0x1d0/0x1f0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

read to 0xffff8881008fea50 of 8 bytes by task 1317 on cpu 1:
 __ps2_command+0x411/0xa40 drivers/input/serio/libps2.c:285
 ps2_command+0x51/0x90 drivers/input/serio/libps2.c:332
 psmouse_reset drivers/input/mouse/psmouse-base.c:440 [inline]
 psmouse_extensions+0xe0e/0x1790 drivers/input/mouse/psmouse-base.c:1212
 __psmouse_reconnect+0x31e/0x620 drivers/input/mouse/psmouse-base.c:1728
 psmouse_reconnect+0x13/0x20 drivers/input/mouse/psmouse-base.c:1766
 serio_reconnect_driver drivers/input/serio/serio.c:59 [inline]
 serio_reconnect_port drivers/input/serio/serio.c:588 [inline]
 serio_handle_event+0x6be/0xc20 drivers/input/serio/serio.c:214
 process_one_work+0x3e9/0x8f0 kernel/workqueue.c:2276
 worker_thread+0x636/0xae0 kernel/workqueue.c:2422
 kthread+0x1d0/0x1f0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

value changed: 0x0000000000000006 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 1317 Comm: kworker/1:3 Not tainted 5.13.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_long serio_handle_event
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