================================================================== BUG: KCSAN: data-race in hrtimer_interrupt / print_cpu write to 0xffff888237d1ffa0 of 8 bytes by interrupt on cpu 1: hrtimer_interrupt+0x18c/0x7b0 kernel/time/hrtimer.c:1805 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x5c/0x1a0 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x6e/0x80 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 console_flush_all+0x4fc/0x710 console_unlock+0x7b/0x280 kernel/printk/printk.c:3063 vprintk_emit+0x3ed/0x5e0 kernel/printk/printk.c:2345 vprintk_default+0x26/0x30 kernel/printk/printk.c:2360 vprintk+0x75/0x80 kernel/printk/printk_safe.c:45 _printk+0x7a/0xa0 kernel/printk/printk.c:2370 __netdev_printk+0x2d1/0x3e0 net/core/dev.c:11633 netdev_info+0x99/0xc0 net/core/dev.c:11680 team_port_add drivers/net/team/team_core.c:1293 [inline] team_add_slave+0x158d/0x1610 drivers/net/team/team_core.c:1976 do_set_master net/core/rtnetlink.c:2701 [inline] do_setlink+0x968/0x2490 net/core/rtnetlink.c:2907 __rtnl_newlink net/core/rtnetlink.c:3696 [inline] rtnl_newlink+0x11a1/0x1690 net/core/rtnetlink.c:3743 rtnetlink_rcv_msg+0x85e/0x910 net/core/rtnetlink.c:6635 netlink_rcv_skb+0x12c/0x230 net/netlink/af_netlink.c:2564 rtnetlink_rcv+0x1c/0x30 net/core/rtnetlink.c:6653 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline] netlink_unicast+0x58d/0x660 net/netlink/af_netlink.c:1361 netlink_sendmsg+0x5ca/0x6e0 net/netlink/af_netlink.c:1905 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x140/0x180 net/socket.c:745 ____sys_sendmsg+0x312/0x410 net/socket.c:2585 ___sys_sendmsg net/socket.c:2639 [inline] __sys_sendmsg+0x1e9/0x280 net/socket.c:2668 __do_sys_sendmsg net/socket.c:2677 [inline] __se_sys_sendmsg net/socket.c:2675 [inline] __x64_sys_sendmsg+0x46/0x50 net/socket.c:2675 x64_sys_call+0xb25/0x2d70 arch/x86/include/generated/asm/syscalls_64.h:47 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff888237d1ffa0 of 8 bytes by task 12261 on cpu 0: print_cpu+0x2fb/0x670 kernel/time/timer_list.c:133 timer_list_show+0x115/0x180 kernel/time/timer_list.c:295 seq_read_iter+0x65b/0x940 fs/seq_file.c:272 proc_reg_read_iter+0x11e/0x190 fs/proc/inode.c:299 copy_splice_read+0x3a4/0x5d0 fs/splice.c:365 do_splice_read fs/splice.c:985 [inline] splice_direct_to_actor+0x26c/0x670 fs/splice.c:1089 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0xd7/0x150 fs/splice.c:1233 do_sendfile+0x3ab/0x960 fs/read_write.c:1295 __do_sys_sendfile64 fs/read_write.c:1362 [inline] __se_sys_sendfile64 fs/read_write.c:1348 [inline] __x64_sys_sendfile64+0x110/0x150 fs/read_write.c:1348 x64_sys_call+0x2c9f/0x2d70 arch/x86/include/generated/asm/syscalls_64.h:41 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x00000033ca89f8d5 -> 0x00000033cafe2696 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 12261 Comm: syz-executor.2 Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 ==================================================================