==================================================================
BUG: KCSAN: data-race in hrtimer_interrupt / print_cpu

read-write to 0xffff888237c1ff94 of 4 bytes by interrupt on cpu 0:
 hrtimer_interrupt+0x72/0x7b0 kernel/time/hrtimer.c:1791
 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
 __sanitizer_cov_trace_switch+0x10a/0x120 kernel/kcov.c:342
 ma_pivots lib/maple_tree.c:654 [inline]
 mtree_range_walk lib/maple_tree.c:2770 [inline]
 mas_state_walk lib/maple_tree.c:3678 [inline]
 mt_find+0x1fd/0x880 lib/maple_tree.c:6935
 find_vma+0x6f/0xa0 mm/mmap.c:1948
 lock_mm_and_find_vma+0x5d/0x270 mm/memory.c:5778
 do_user_addr_fault arch/x86/mm/fault.c:1361 [inline]
 handle_page_fault arch/x86/mm/fault.c:1481 [inline]
 exc_page_fault+0x1bd/0x650 arch/x86/mm/fault.c:1539
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
 rep_movs_alternative+0x4a/0x70 arch/x86/lib/copy_user_64.S:65
 copy_user_generic arch/x86/include/asm/uaccess_64.h:110 [inline]
 raw_copy_to_user arch/x86/include/asm/uaccess_64.h:131 [inline]
 copy_to_user_iter lib/iov_iter.c:25 [inline]
 iterate_ubuf include/linux/iov_iter.h:29 [inline]
 iterate_and_advance2 include/linux/iov_iter.h:245 [inline]
 iterate_and_advance include/linux/iov_iter.h:271 [inline]
 _copy_to_iter+0x137/0xaf0 lib/iov_iter.c:185
 copy_to_iter include/linux/uio.h:196 [inline]
 simple_copy_to_iter net/core/datagram.c:513 [inline]
 __skb_datagram_iter+0xd2/0x5d0 net/core/datagram.c:401
 skb_copy_datagram_iter+0x41/0x130 net/core/datagram.c:527
 skb_copy_datagram_msg include/linux/skbuff.h:3983 [inline]
 tipc_recvstream+0x2df/0x7e0 net/tipc/socket.c:2069
 sock_recvmsg_nosec net/socket.c:1046 [inline]
 sock_recvmsg+0x13f/0x170 net/socket.c:1068
 ____sys_recvmsg+0xf9/0x280 net/socket.c:2804
 ___sys_recvmsg net/socket.c:2846 [inline]
 __sys_recvmsg+0x1ea/0x280 net/socket.c:2876
 __do_sys_recvmsg net/socket.c:2886 [inline]
 __se_sys_recvmsg net/socket.c:2883 [inline]
 __x64_sys_recvmsg+0x46/0x50 net/socket.c:2883
 x64_sys_call+0x2c31/0x2d70 arch/x86/include/generated/asm/syscalls_64.h:48
 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 0xffff888237c1ff94 of 4 bytes by task 13362 on cpu 1:
 print_cpu+0x348/0x670 kernel/time/timer_list.c:135
 timer_list_show+0x115/0x180 kernel/time/timer_list.c:295
 traverse+0x155/0x3c0 fs/seq_file.c:111
 seq_lseek+0xae/0x170 fs/seq_file.c:323
 proc_reg_llseek+0x11e/0x1a0 fs/proc/inode.c:283
 vfs_llseek fs/read_write.c:289 [inline]
 ksys_lseek fs/read_write.c:302 [inline]
 __do_sys_lseek fs/read_write.c:313 [inline]
 __se_sys_lseek fs/read_write.c:311 [inline]
 __x64_sys_lseek+0xed/0x150 fs/read_write.c:311
 x64_sys_call+0x29f7/0x2d70 arch/x86/include/generated/asm/syscalls_64.h:9
 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: 0x0003899f -> 0x000389a0

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 13362 Comm: syz-executor.3 Tainted: G        W          6.10.0-rc1-syzkaller-00104-gd8ec19857b09 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
==================================================================