KCSAN: data-race in handle_irq_event / synchronize

KCSAN: data-race in handle_irq_event / synchronize_irq
Status: moderation: reported on 2020/12/07 11:24
Reported-by: syzbot+f4b8dc5f4e026528d301@syzkaller.appspotmail.com
First crash: 212d, last: 2d21h

Sample crash report:

==================================================================
BUG: KCSAN: data-race in handle_irq_event / synchronize_irq

read-write to 0xffff888100140600 of 4 bytes by interrupt on cpu 0:
 irqd_clear kernel/irq/internals.h:225 [inline]
 handle_irq_event+0xf3/0x120 kernel/irq/handle.c:216
 handle_edge_irq+0x16e/0x590 kernel/irq/chip.c:819
 asm_call_irq_on_stack+0xf/0x20
 __run_irq_on_irqstack arch/x86/include/asm/irq_stack.h:48 [inline]
 run_irq_on_irqstack_cond arch/x86/include/asm/irq_stack.h:101 [inline]
 handle_irq arch/x86/kernel/irq.c:230 [inline]
 __common_interrupt arch/x86/kernel/irq.c:249 [inline]
 common_interrupt+0x8e/0x130 arch/x86/kernel/irq.c:239
 asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:619
 preempt_schedule_irq+0x3e/0x80 kernel/sched/core.c:5326
 irqentry_exit_cond_resched+0x30/0x40 kernel/entry/common.c:393
 irqentry_exit+0x2a/0x40 kernel/entry/common.c:423
 sysvec_apic_timer_interrupt+0x80/0x90 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:628
 native_restore_fl arch/x86/include/asm/irqflags.h:41 [inline]
 arch_local_irq_restore arch/x86/include/asm/irqflags.h:84 [inline]
 kcsan_setup_watchpoint+0x1fc/0x4e0 kernel/kcsan/core.c:591
 strlen+0x1b/0x40 lib/string.c:565
 tomoyo_correct_word security/tomoyo/util.c:520 [inline]
 tomoyo_parse_name_union+0xc0/0x110 security/tomoyo/util.c:258
 tomoyo_update_path_acl security/tomoyo/file.c:395 [inline]
 tomoyo_write_file+0x1e5/0x910 security/tomoyo/file.c:1022
 tomoyo_write_domain2 security/tomoyo/common.c:1152 [inline]
 tomoyo_add_entry security/tomoyo/common.c:2042 [inline]
 tomoyo_supervisor+0xaad/0xb20 security/tomoyo/common.c:2103
 tomoyo_audit_path_log security/tomoyo/file.c:168 [inline]
 tomoyo_path_permission security/tomoyo/file.c:587 [inline]
 tomoyo_path_perm+0x261/0x330 security/tomoyo/file.c:838
 tomoyo_inode_getattr+0x18/0x20 security/tomoyo/tomoyo.c:123
 security_inode_getattr+0x7f/0xd0 security/security.c:1280
 vfs_getattr fs/stat.c:121 [inline]
 vfs_statx+0xf8/0x270 fs/stat.c:189
 vfs_fstatat fs/stat.c:207 [inline]
 vfs_lstat include/linux/fs.h:3122 [inline]
 __do_sys_newlstat fs/stat.c:362 [inline]
 __se_sys_newlstat+0x46/0x250 fs/stat.c:356
 __x64_sys_newlstat+0x2d/0x40 fs/stat.c:356
 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

read to 0xffff888100140600 of 4 bytes by task 10680 on cpu 1:
 irqd_irq_inprogress include/linux/irq.h:354 [inline]
 __synchronize_hardirq kernel/irq/manage.c:51 [inline]
 synchronize_irq+0xa6/0x2e0 kernel/irq/manage.c:132
 serial8250_do_shutdown+0xbb/0x400 drivers/tty/serial/8250/8250_port.c:2447
 serial8250_shutdown+0x37/0x40 drivers/tty/serial/8250/8250_port.c:2493
 uart_port_shutdown drivers/tty/serial/serial_core.c:1710 [inline]
 uart_tty_port_shutdown+0xb9/0x1b0 drivers/tty/serial/serial_core.c:1582
 tty_port_shutdown drivers/tty/tty_port.c:330 [inline]
 tty_port_close+0x166/0x210 drivers/tty/tty_port.c:636
 uart_close+0x4a/0xd0 drivers/tty/serial/serial_core.c:1563
 tty_release+0x255/0x9f0 drivers/tty/tty_io.c:1683
 __fput+0x24b/0x4e0 fs/file_table.c:280
 ____fput+0x11/0x20 fs/file_table.c:313
 task_work_run+0x8e/0x110 kernel/task_work.c:140
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:174 [inline]
 exit_to_user_mode_prepare+0x16b/0x1a0 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x20/0x40 kernel/entry/common.c:302
 do_syscall_64+0x45/0x80 arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 10680 Comm: syz-executor.5 Not tainted 5.11.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
==================================================================

Crashes (54):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	VM info	Maintainers
ci2-upstream-kcsan-gce	2021/01/22 10:27	upstream	83d09ad4	d4f4eca5	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2021/01/20 14:47	upstream	45dfb8a5	d4f4eca5	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2021/01/19 23:43	upstream	1e2a199f	63631df1	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2021/01/11 13:42	upstream	7c53f6b6	2c1f2513	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2021/01/09 08:46	upstream	6279d812	c104d4a3	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/12/26 17:41	upstream	40f78232	821e0b09	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/12/25 10:22	upstream	71c5f031	b982b3ea	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/12/24 20:49	upstream	58cf05f5	c2c1d1dd	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/12/23 07:36	upstream	614cb589	04201c06	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/12/22 05:43	upstream	8653b778	04201c06	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/12/21 08:03	upstream	6a447b0e	04201c06	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/12/18 07:17	upstream	d64c6f96	04201c06	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/12/17 05:26	upstream	5e60366d	04201c06	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/12/15 16:22	upstream	148842c9	97183ed7	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/12/05 12:34	upstream	b3298500	0ef84591	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/12/02 20:16	upstream	509a1542	eff43e99	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/11/27 18:28	upstream	85a2c56c	486f93ef	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/11/12 20:07	upstream	af5043c8	77a55c8e	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/11/11 19:07	upstream	eccc8767	cca87986	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/11/09 11:49	upstream	f8394f23	cba33199	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/11/06 00:43	upstream	521b619a	cba33199	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/10/31 13:57	upstream	5fc6b075	8bc4594f	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/10/30 01:33	upstream	23859ae4	a0c7169a	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/10/25 08:16	upstream	d7691390	a1839e81	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/10/23 02:38	upstream	96485e44	4e740c00	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/10/21 16:02	upstream	c4d6fe73	99c64d5c	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/10/14 15:27	upstream	b5fc7a89	fc7735a2	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/10/05 23:33	upstream	7575fdda	1880b4a9	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/10/05 04:05	upstream	549738f1	5ef9c291	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/10/03 10:59	upstream	d3d45f82	2653fa43	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/10/02 04:00	upstream	fcadab74	9602ddf4	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/09/25 16:22	upstream	171d4ff7	4a006f63	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/09/25 02:35	upstream	171d4ff7	54289b08	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/09/23 11:12	upstream	805c6d3c	287cd75a	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/09/18 22:26	upstream	92ab97ad	53ce8104	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/09/15 21:50	upstream	fc4f28bb	18d7d030	.config	log	report	info	linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/09/11 10:53	upstream	581cb3a2	adfb8b4e	.config	log	report		linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/09/10 02:53	upstream	34d4ddd3	ac7ca78e	.config	log	report		linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/09/09 06:17	upstream	34d4ddd3	0ea7a887	.config	log	report		linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/09/06 20:59	upstream	dd9fb9bb	abf9ba4f	.config	log	report		linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/09/05 09:10	upstream	c70672d8	abf9ba4f	.config	log	report		linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/09/03 16:42	upstream	fc3abb53	abf9ba4f	.config	log	report		linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/09/01 23:01	upstream	b765a32a	abf9ba4f	.config	log	report		linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/08/29 21:44	upstream	4d41ead6	d5a3ae1f	.config	log	report		linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/08/21 00:37	upstream	da2968ff	70160577	.config	log	report		linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/08/13 22:08	upstream	990f2273	ee7cb8b6	.config	log	report		linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/08/02 15:34	upstream	ac3a0c84	96dd3623	.config	log	report		linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/07/30 14:03	upstream	83bdc727	b0947553	.config	log	report		linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/07/25 16:07	upstream	23ee3e4e	1f7cc1ca	.config	log	report		linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/07/16 03:29	upstream	994e99a9	ada108d0	.config	log	report		linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/07/12 11:39	upstream	0aea6d5c	115e1930	.config	log	report		linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/07/04 15:09	upstream	35e884f8	4f739670	.config	log	report		linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/06/27 19:51	upstream	6116dea8	a2cdad9d	.config	log	report		linux-kernel@vger.kernel.org, tglx@linutronix.de
ci2-upstream-kcsan-gce	2020/06/27 06:18	upstream	1590a2e1	ffec44b5	.config	log	report		linux-kernel@vger.kernel.org, tglx@linutronix.de