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BUG: KCSAN: data-race in hrtimer_interrupt / print_tickdevice

write to 0xffff888237c1af18 of 8 bytes by interrupt on cpu 0:
 hrtimer_interrupt+0xb3/0xac0 kernel/time/hrtimer.c:1790
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
 __sysvec_apic_timer_interrupt+0xa3/0x240 arch/x86/kernel/apic/apic.c:1103
 sysvec_apic_timer_interrupt+0x88/0xb0 arch/x86/kernel/apic/apic.c:1097
 asm_sysvec_apic_timer_interrupt+0x12/0x20
 is_atomic kernel/kcsan/core.c:238 [inline]
 should_watch kernel/kcsan/core.c:266 [inline]
 check_access kernel/kcsan/core.c:633 [inline]
 __tsan_read4+0x11a/0x180 kernel/kcsan/core.c:854
 map_id_range_down_base kernel/user_namespace.c:287 [inline]
 map_id_range_down kernel/user_namespace.c:302 [inline]
 map_id_down kernel/user_namespace.c:317 [inline]
 make_kuid+0x78/0x170 kernel/user_namespace.c:394
 kuid_into_mnt include/linux/fs.h:1637 [inline]
 i_uid_into_mnt include/linux/fs.h:1665 [inline]
 acl_permission_check fs/namei.c:341 [inline]
 generic_permission+0x3e/0x420 fs/namei.c:403
 do_inode_permission fs/namei.c:464 [inline]
 inode_permission fs/namei.c:524 [inline]
 may_lookup fs/namei.c:1683 [inline]
 link_path_walk+0x1bc/0x930 fs/namei.c:2239
 path_parentat fs/namei.c:2496 [inline]
 filename_parentat+0x123/0x480 fs/namei.c:2519
 do_unlinkat+0x83/0x540 fs/namei.c:4138
 __do_sys_unlink fs/namei.c:4215 [inline]
 __se_sys_unlink fs/namei.c:4213 [inline]
 __x64_sys_unlink+0x2c/0x30 fs/namei.c:4213
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff888237c1af18 of 8 bytes by task 12078 on cpu 1:
 print_tickdevice+0x158/0x370 kernel/time/timer_list.c:204
 timer_list_show+0x74/0x180 kernel/time/timer_list.c:296
 seq_read_iter+0x60b/0x930 fs/seq_file.c:272
 proc_reg_read_iter+0xfc/0x170 fs/proc/inode.c:300
 call_read_iter include/linux/fs.h:2155 [inline]
 generic_file_splice_read+0x24f/0x330 fs/splice.c:311
 do_splice_to fs/splice.c:796 [inline]
 splice_direct_to_actor+0x2aa/0x650 fs/splice.c:870
 do_splice_direct+0x106/0x190 fs/splice.c:979
 do_sendfile+0x675/0xc40 fs/read_write.c:1245
 __do_sys_sendfile64 fs/read_write.c:1310 [inline]
 __se_sys_sendfile64 fs/read_write.c:1296 [inline]
 __x64_sys_sendfile64+0x102/0x140 fs/read_write.c:1296
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x000000c6823549d3 -> 0x000000c68236a692

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 12078 Comm: syz-executor.1 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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