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BUG: KCSAN: data-race in __synchronize_hardirq / handle_irq_event

write to 0xffff88812bc94600 of 4 bytes by interrupt on cpu 1:
 irqd_clear kernel/irq/internals.h:227 [inline]
 handle_irq_event+0xaf/0xca kernel/irq/handle.c:209
 handle_edge_irq+0x1a4/0x4a0 kernel/irq/chip.c:830
 generic_handle_irq_desc include/linux/irqdesc.h:156 [inline]
 do_IRQ+0x7c/0x130 arch/x86/kernel/irq.c:250
 ret_from_intr+0x0/0x21
 find_watchpoint kernel/kcsan/core.c:106 [inline]
 check_access kernel/kcsan/core.c:537 [inline]
 __tsan_read1+0x1b/0x100 kernel/kcsan/core.c:683
 tomoyo_domain_quota_is_ok+0x10b/0x2b0 security/tomoyo/util.c:1039
 tomoyo_supervisor+0x1d9/0xc90 security/tomoyo/common.c:2089
 tomoyo_audit_path_log security/tomoyo/file.c:168 [inline]
 tomoyo_path_permission security/tomoyo/file.c:587 [inline]
 tomoyo_path_permission+0x121/0x160 security/tomoyo/file.c:573
 tomoyo_path_perm+0x23e/0x390 security/tomoyo/file.c:838
 tomoyo_inode_getattr+0x26/0x40 security/tomoyo/tomoyo.c:129
 security_inode_getattr+0x9b/0xd0 security/security.c:1254
 vfs_getattr+0x2e/0x70 fs/stat.c:117
 vfs_statx+0x108/0x190 fs/stat.c:201
 vfs_stat include/linux/fs.h:3271 [inline]
 __do_sys_newstat+0x51/0xb0 fs/stat.c:351
 __se_sys_newstat fs/stat.c:347 [inline]
 __x64_sys_newstat+0x3a/0x50 fs/stat.c:347
 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

read to 0xffff88812bc94600 of 4 bytes by task 25134 on cpu 0:
 irqd_irq_inprogress include/linux/irq.h:328 [inline]
 __synchronize_hardirq+0x61/0x1e0 kernel/irq/manage.c:51
 synchronize_irq+0x56/0x120 kernel/irq/manage.c:132
 serial8250_do_shutdown+0xc1/0x400 drivers/tty/serial/8250/8250_port.c:2345
 serial8250_shutdown+0x52/0x70 drivers/tty/serial/8250/8250_port.c:2391
 uart_port_shutdown+0x71/0xa0 drivers/tty/serial/serial_core.c:1703
 uart_shutdown+0x156/0x330 drivers/tty/serial/serial_core.c:297
 uart_do_autoconfig drivers/tty/serial/serial_core.c:1147 [inline]
 uart_ioctl+0x4eb/0xa46 drivers/tty/serial/serial_core.c:1395
 tty_ioctl+0x93c/0xe10 drivers/tty/tty_io.c:2660
 vfs_ioctl fs/ioctl.c:47 [inline]
 ksys_ioctl+0x109/0x150 fs/ioctl.c:763
 __do_sys_ioctl fs/ioctl.c:772 [inline]
 __se_sys_ioctl fs/ioctl.c:770 [inline]
 __x64_sys_ioctl+0x4c/0x60 fs/ioctl.c:770
 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 25134 Comm: syz-executor.3 Not tainted 5.6.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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