================================================================== BUG: KCSAN: data-race in ps2_do_sendbyte / ps2_handle_ack write to 0xffff888103756040 of 8 bytes by interrupt on cpu 1: ps2_handle_ack+0x1b3/0x320 drivers/input/serio/libps2.c:444 atkbd_interrupt+0xa5b/0xc30 drivers/input/keyboard/atkbd.c:422 serio_interrupt+0x5d/0xe0 drivers/input/serio/serio.c:1001 i8042_interrupt+0x380/0x710 drivers/input/serio/i8042.c:606 __handle_irq_event_percpu+0x92/0x400 kernel/irq/handle.c:158 handle_irq_event_percpu kernel/irq/handle.c:193 [inline] handle_irq_event+0x60/0xf0 kernel/irq/handle.c:210 handle_edge_irq+0x17e/0x5a0 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+0x60/0x100 arch/x86/kernel/irq.c:250 common_interrupt+0x9a/0xc0 arch/x86/kernel/irq.c:240 asm_common_interrupt+0x22/0x40 release_pages+0x794/0x840 mm/swap.c:942 free_pages_and_swap_cache+0x68/0x70 mm/swap_state.c:311 tlb_batch_pages_flush mm/mmu_gather.c:58 [inline] tlb_flush_mmu_free mm/mmu_gather.c:255 [inline] tlb_flush_mmu+0x5b2/0x640 mm/mmu_gather.c:262 zap_pte_range+0x14f2/0x1560 mm/memory.c:1526 zap_pmd_range mm/memory.c:1575 [inline] zap_pud_range mm/memory.c:1604 [inline] zap_p4d_range mm/memory.c:1625 [inline] unmap_page_range+0x3ac/0x730 mm/memory.c:1646 unmap_single_vma+0x157/0x230 mm/memory.c:1694 unmap_vmas+0xdf/0x1a0 mm/memory.c:1731 exit_mmap+0x11f/0x380 mm/mmap.c:3116 __mmput+0x27/0x1b0 kernel/fork.c:1187 mmput+0x3d/0x50 kernel/fork.c:1208 exit_mm+0xdb/0x170 kernel/exit.c:510 do_exit+0x525/0x16e0 kernel/exit.c:782 do_group_exit+0xa5/0x160 kernel/exit.c:925 get_signal+0xf54/0x1020 kernel/signal.c:2857 arch_do_signal_or_restart+0x87/0x2d0 arch/x86/kernel/signal.c:869 exit_to_user_mode_loop+0x78/0x130 kernel/entry/common.c:166 exit_to_user_mode_prepare kernel/entry/common.c:201 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x6a/0x90 kernel/entry/common.c:294 do_syscall_64+0x37/0x70 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff888103756040 of 8 bytes by task 1929 on cpu 0: ps2_do_sendbyte+0x12e/0x380 drivers/input/serio/libps2.c:45 __ps2_command+0x35e/0x8c0 drivers/input/serio/libps2.c:273 ps2_command+0x51/0x90 drivers/input/serio/libps2.c:332 atkbd_set_repeat_rate drivers/input/keyboard/atkbd.c:583 [inline] atkbd_event_work+0x2a8/0x2e0 drivers/input/keyboard/atkbd.c:637 process_one_work+0x3d3/0x720 kernel/workqueue.c:2289 worker_thread+0x618/0xa70 kernel/workqueue.c:2436 kthread+0x1a9/0x1e0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 value changed: 0x0000000000000001 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 1929 Comm: kworker/0:6 Not tainted 6.0.0-rc6-syzkaller-00030-g06f7db949993-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2022 Workqueue: events atkbd_event_work ==================================================================