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BUG: KCSAN: assert: race in __block_task kernel/sched/sched.h:2770 [inline]
BUG: KCSAN: assert: race in dequeue_entities+0x6df/0x760 kernel/sched/fair.c:7177

race at unknown origin, with assert no writes to 0xffff8881045331e8 of 4 bytes by task 2948 on cpu 1:
 __block_task kernel/sched/sched.h:2770 [inline]
 dequeue_entities+0x6df/0x760 kernel/sched/fair.c:7177
 pick_next_entity kernel/sched/fair.c:5627 [inline]
 pick_task_fair kernel/sched/fair.c:8856 [inline]
 pick_next_task_fair+0x7d/0x410 kernel/sched/fair.c:8876
 __pick_next_task kernel/sched/core.c:5955 [inline]
 pick_next_task kernel/sched/core.c:6477 [inline]
 __schedule+0x284/0x940 kernel/sched/core.c:6629
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0x55/0xc0 kernel/sched/core.c:6767
 schedule_timeout+0x55/0x2c0 kernel/time/timer.c:2591
 __skb_wait_for_more_packets+0x202/0x300 net/core/datagram.c:121
 __unix_dgram_recvmsg+0x1ff/0x860 net/unix/af_unix.c:2448
 unix_dgram_recvmsg+0x81/0x90 net/unix/af_unix.c:2537
 sock_recvmsg_nosec net/socket.c:1052 [inline]
 sock_recvmsg+0x13f/0x170 net/socket.c:1074
 sock_read_iter+0x14c/0x1a0 net/socket.c:1144
 new_sync_read fs/read_write.c:488 [inline]
 vfs_read+0x5f6/0x720 fs/read_write.c:569
 ksys_read+0xeb/0x1b0 fs/read_write.c:712
 __do_sys_read fs/read_write.c:722 [inline]
 __se_sys_read fs/read_write.c:720 [inline]
 __x64_sys_read+0x42/0x50 fs/read_write.c:720
 x64_sys_call+0x27d3/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:1
 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: 0x00000000 -> 0x00000001

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 UID: 0 PID: 2948 Comm: syslogd Not tainted 6.11.0-syzkaller-10669-g11a299a7933e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
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