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BUG: KCSAN: data-race in __do_munmap / acct_account_cputime

write to 0xffff8881008bbac0 of 8 bytes by task 11383 on cpu 0:
 vm_stat_account mm/mmap.c:3365 [inline]
 remove_vma_list mm/mmap.c:2655 [inline]
 __do_munmap+0xfa4/0x1330 mm/mmap.c:2914
 do_munmap mm/mmap.c:2922 [inline]
 munmap_vma_range mm/mmap.c:604 [inline]
 mmap_region+0x5aa/0x1400 mm/mmap.c:1753
 do_mmap+0x73f/0xc40 mm/mmap.c:1584
 vm_mmap_pgoff+0xf9/0x1d0 mm/util.c:519
 ksys_mmap_pgoff+0x2a8/0x380 mm/mmap.c:1635
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff8881008bbac0 of 8 bytes by interrupt on cpu 1:
 __acct_update_integrals kernel/tsacct.c:140 [inline]
 acct_account_cputime+0x15a/0x1a0 kernel/tsacct.c:164
 update_process_times+0x5c/0x150 kernel/time/timer.c:1783
 tick_sched_handle kernel/time/tick-sched.c:226 [inline]
 tick_sched_timer+0x191/0x210 kernel/time/tick-sched.c:1421
 __run_hrtimer+0x160/0x480 kernel/time/hrtimer.c:1537
 __hrtimer_run_queues kernel/time/hrtimer.c:1601 [inline]
 hrtimer_interrupt+0x380/0xaf0 kernel/time/hrtimer.c:1663
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
 __sysvec_apic_timer_interrupt+0x6f/0x1c0 arch/x86/kernel/apic/apic.c:1106
 sysvec_apic_timer_interrupt+0x64/0x80 arch/x86/kernel/apic/apic.c:1100
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
 dump_stack_lvl+0xec/0x103 arch/x86/include/asm/irqflags.h:45
 dump_stack+0x11/0x1a lib/dump_stack.c:112
 fail_dump lib/fault-inject.c:52 [inline]
 should_fail+0x23c/0x250 lib/fault-inject.c:146
 __should_failslab+0x81/0x90 mm/failslab.c:33
 should_failslab+0x5/0x20 mm/slab_common.c:1326
 slab_pre_alloc_hook mm/slab.h:494 [inline]
 slab_alloc mm/slab.c:3306 [inline]
 kmem_cache_alloc_trace+0x49/0x310 mm/slab.c:3573
 kmalloc include/linux/slab.h:591 [inline]
 kzalloc include/linux/slab.h:721 [inline]
 selinux_sk_alloc_security+0x61/0x120 security/selinux/hooks.c:5294
 security_sk_alloc+0x45/0x90 security/security.c:2261
 sk_prot_alloc+0xd2/0x190 net/core/sock.c:1811
 sk_alloc+0x2e/0x220 net/core/sock.c:1861
 unix_create1+0x74/0x3c0 net/unix/af_unix.c:795
 unix_create+0xdc/0x100 net/unix/af_unix.c:857
 __sock_create+0x2c7/0x4e0 net/socket.c:1450
 sock_create_kern+0x34/0x40 net/socket.c:1519
 io_uring_get_file fs/io_uring.c:9616 [inline]
 io_uring_create+0x1653/0x1940 fs/io_uring.c:9738
 io_uring_setup fs/io_uring.c:9785 [inline]
 __do_sys_io_uring_setup fs/io_uring.c:9791 [inline]
 __se_sys_io_uring_setup fs/io_uring.c:9788 [inline]
 __x64_sys_io_uring_setup+0xe1/0x120 fs/io_uring.c:9788
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x0000000000005398 -> 0x0000000000005350

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 11388 Comm: syz-executor.3 Not tainted 5.14.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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