================================================================== BUG: KCSAN: data-race in ktime_get_seconds / timekeeping_advance write to 0xffffffff8603db08 of 280 bytes by interrupt on cpu 0: timekeeping_advance+0x893/0xd80 include/linux/string.h:359 update_wall_time+0x19/0x20 kernel/time/timekeeping.c:2137 tick_do_update_jiffies64+0x1ae/0x260 kernel/time/tick-sched.c:94 tick_sched_do_timer+0xd4/0xe0 kernel/time/tick-sched.c:138 tick_sched_timer+0x43/0xe0 kernel/time/tick-sched.c:1289 __run_hrtimer kernel/time/hrtimer.c:1389 [inline] __hrtimer_run_queues+0x288/0x600 kernel/time/hrtimer.c:1451 hrtimer_interrupt+0x22a/0x480 kernel/time/hrtimer.c:1509 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1110 [inline] smp_apic_timer_interrupt+0xdc/0x280 arch/x86/kernel/apic/apic.c:1135 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830 arch_local_irq_restore arch/x86/include/asm/paravirt.h:768 [inline] __kcsan_setup_watchpoint+0x282/0x510 kernel/kcsan/core.c:469 __tsan_write4 kernel/kcsan/kcsan.c:30 [inline] __tsan_write4+0x32/0x40 kernel/kcsan/kcsan.c:30 __rcu_read_unlock+0x56/0xe0 kernel/rcu/tree_plugin.h:388 rcu_read_unlock include/linux/rcupdate.h:645 [inline] sk_filter_trim_cap+0x28e/0x520 net/core/filter.c:123 sk_filter include/linux/filter.h:796 [inline] sock_queue_rcv_skb+0x2e/0x70 net/core/sock.c:490 read to 0xffffffff8603db80 of 8 bytes by task 7242 on cpu 1: ktime_get_seconds+0x49/0x60 kernel/time/timekeeping.c:917 tcp_store_ts_recent net/ipv4/tcp_input.c:3482 [inline] tcp_rcv_established+0xeeb/0xf50 net/ipv4/tcp_input.c:5608 tcp_v4_do_rcv+0x381/0x4e0 net/ipv4/tcp_ipv4.c:1542 sk_backlog_rcv include/net/sock.h:945 [inline] __release_sock+0x135/0x1e0 net/core/sock.c:2427 release_sock+0x61/0x160 net/core/sock.c:2943 tcp_recvmsg+0x63b/0x1a30 net/ipv4/tcp.c:2181 inet_recvmsg+0xbb/0x250 net/ipv4/af_inet.c:838 sock_recvmsg_nosec net/socket.c:871 [inline] sock_recvmsg net/socket.c:889 [inline] sock_recvmsg+0x92/0xb0 net/socket.c:885 sock_read_iter+0x15f/0x1e0 net/socket.c:967 call_read_iter include/linux/fs.h:1864 [inline] new_sync_read+0x389/0x4f0 fs/read_write.c:414 __vfs_read+0xb1/0xc0 fs/read_write.c:427 vfs_read fs/read_write.c:461 [inline] vfs_read+0x143/0x2c0 fs/read_write.c:446 ksys_read+0xd5/0x1b0 fs/read_write.c:587 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 7242 Comm: syz-fuzzer Not tainted 5.3.0+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================