================================================================== BUG: KCSAN: data-race in hrtimer_reprogram / print_cpu write to 0xffff888237c1db60 of 8 bytes by interrupt on cpu 0: __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 0xffff888237c1db60 of 8 bytes by task 13548 on cpu 1: print_cpu+0x31e/0x680 kernel/time/timer_list.c:133 timer_list_show+0x114/0x180 kernel/time/timer_list.c:291 seq_read_iter+0x676/0x8e0 fs/seq_file.c:272 proc_reg_read_iter+0xfa/0x170 fs/proc/inode.c:305 call_read_iter include/linux/fs.h:2181 [inline] generic_file_splice_read+0xde/0x2b0 fs/splice.c:309 do_splice_to fs/splice.c:793 [inline] splice_direct_to_actor+0x26c/0x620 fs/splice.c:865 do_splice_direct+0xfb/0x180 fs/splice.c:974 do_sendfile+0x3bf/0x910 fs/read_write.c:1249 __do_sys_sendfile64 fs/read_write.c:1317 [inline] __se_sys_sendfile64 fs/read_write.c:1303 [inline] __x64_sys_sendfile64+0x10c/0x150 fs/read_write.c:1303 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: 0x000000321ef2ab9a -> 0x000000321eee945a Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 13548 Comm: syz-executor.3 Not tainted 6.0.0-rc6-syzkaller-00309-g1a61b828566f-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 ==================================================================