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================================================================== BUG: KCSAN: data-race in atkbd_event_work / input_handle_event read to 0xffff8881036c4938 of 4 bytes by task 19573 on cpu 1: input_get_disposition drivers/input/input.c:329 [inline] input_handle_event+0x220/0xb80 drivers/input/input.c:399 input_inject_event+0xd1/0xf0 drivers/input/input.c:463 evdev_do_ioctl drivers/input/evdev.c:1071 [inline] evdev_ioctl_handler+0x10e8/0x1650 drivers/input/evdev.c:1272 evdev_ioctl+0x24/0x30 drivers/input/evdev.c:1281 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xc9/0x140 fs/ioctl.c:856 __x64_sys_ioctl+0x43/0x50 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd write to 0xffff8881036c4938 of 4 bytes by task 22820 on cpu 0: atkbd_set_repeat_rate drivers/input/keyboard/atkbd.c:582 [inline] atkbd_event_work+0x29a/0x300 drivers/input/keyboard/atkbd.c:639 process_one_work+0x3e6/0x750 kernel/workqueue.c:2390 worker_thread+0x5f2/0xa10 kernel/workqueue.c:2537 kthread+0x1a6/0x1e0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 value changed: 0x000000c3 -> 0x00000007 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 22820 Comm: kworker/0:2 Not tainted 6.3.0-rc7-syzkaller-00136-g6a66fdd29ea1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 Workqueue: events atkbd_event_work ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2023/04/21 03:23 | upstream | 6a66fdd29ea1 | 2b32bd34 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in atkbd_event_work / input_handle_event |