================================================================== BUG: KCSAN: data-race in hrtimer_reprogram / print_cpu write to 0xffff888237d1db20 of 8 bytes by interrupt on cpu 1: __hrtimer_reprogram kernel/time/hrtimer.c:659 [inline] hrtimer_reprogram+0x1de/0x250 kernel/time/hrtimer.c:866 hrtimer_update_softirq_timer kernel/time/hrtimer.c:1209 [inline] hrtimer_run_softirq+0x44c/0x480 kernel/time/hrtimer.c:1769 __do_softirq+0x158/0x2e3 kernel/softirq.c:571 run_ksoftirqd+0x1f/0x30 kernel/softirq.c:934 smpboot_thread_fn+0x308/0x4a0 kernel/smpboot.c:164 kthread+0x1a9/0x1e0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 read to 0xffff888237d1db20 of 8 bytes by task 4220 on cpu 0: print_cpu+0x31e/0x680 kernel/time/timer_list.c:133 timer_list_show+0x114/0x180 kernel/time/timer_list.c:291 seq_read_iter+0x2c3/0x8e0 fs/seq_file.c:230 proc_reg_read_iter+0xfa/0x170 fs/proc/inode.c:300 call_read_iter include/linux/fs.h:2052 [inline] generic_file_splice_read+0x1de/0x2c0 fs/splice.c:311 do_splice_to fs/splice.c:796 [inline] splice_direct_to_actor+0x2ac/0x660 fs/splice.c:870 do_splice_direct+0xfb/0x180 fs/splice.c:979 do_sendfile+0x3ad/0x900 fs/read_write.c:1262 __do_sys_sendfile64 fs/read_write.c:1327 [inline] __se_sys_sendfile64 fs/read_write.c:1313 [inline] __x64_sys_sendfile64+0x10c/0x150 fs/read_write.c:1313 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x0000000f77e22f93 -> 0x0000000f77e18938 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 4220 Comm: syz-executor.4 Not tainted 5.19.0-rc8-syzkaller-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 ==================================================================