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BUG: KCSAN: data-race in do_select / pollwake

read to 0xffffc9000dca3a00 of 4 bytes by task 6040 on cpu 0:
 poll_schedule_timeout fs/select.c:240 [inline]
 do_select+0xe3f/0xf70 fs/select.c:604
 core_sys_select+0x362/0x530 fs/select.c:678
 do_pselect fs/select.c:760 [inline]
 __do_sys_pselect6 fs/select.c:803 [inline]
 __se_sys_pselect6+0x20d/0x270 fs/select.c:794
 __x64_sys_pselect6+0x78/0x90 fs/select.c:794
 x64_sys_call+0x26f7/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:271
 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

write to 0xffffc9000dca3a00 of 4 bytes by interrupt on cpu 1:
 __pollwake fs/select.c:195 [inline]
 pollwake+0xbe/0x110 fs/select.c:215
 __wake_up_common kernel/sched/wait.c:89 [inline]
 __wake_up_common_lock kernel/sched/wait.c:106 [inline]
 __wake_up+0x65/0xb0 kernel/sched/wait.c:127
 bpf_ringbuf_notify+0x22/0x30 kernel/bpf/ringbuf.c:154
 irq_work_single kernel/irq_work.c:221 [inline]
 irq_work_run_list kernel/irq_work.c:252 [inline]
 irq_work_run+0xdf/0x2c0 kernel/irq_work.c:261
 __sysvec_irq_work+0x23/0x1a0 arch/x86/kernel/irq_work.c:22
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0x66/0x80 arch/x86/kernel/irq_work.c:17
 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738
 native_apic_mem_write arch/x86/include/asm/apic.h:101 [inline]
 __default_send_IPI_shortcut arch/x86/kernel/apic/ipi.c:166 [inline]
 default_send_IPI_self+0x38/0x80 arch/x86/kernel/apic/ipi.c:247
 __apic_send_IPI_self arch/x86/include/asm/apic.h:455 [inline]
 arch_irq_work_raise+0x48/0x50 arch/x86/kernel/irq_work.c:31
 irq_work_raise kernel/irq_work.c:84 [inline]
 __irq_work_queue_local+0x82/0x1d0 kernel/irq_work.c:112
 irq_work_queue+0x85/0x120 kernel/irq_work.c:124
 ____bpf_ringbuf_discard kernel/bpf/ringbuf.c:532 [inline]
 bpf_ringbuf_discard+0xcd/0xf0 kernel/bpf/ringbuf.c:530
 bpf_prog_fe0ed97373b08409+0x47/0x4b
 bpf_dispatcher_nop_func include/linux/bpf.h:1265 [inline]
 __bpf_prog_run include/linux/filter.h:701 [inline]
 bpf_prog_run include/linux/filter.h:708 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2316 [inline]
 bpf_trace_run3+0x10c/0x1d0 kernel/trace/bpf_trace.c:2358
 trace_kmem_cache_free include/trace/events/kmem.h:114 [inline]
 kmem_cache_free+0x237/0x2d0 mm/slub.c:4680
 security_file_free+0x61/0xa0 security/security.c:2891
 file_free fs/file_table.c:65 [inline]
 __fput+0x42f/0x6d0 fs/file_table.c:444
 __fput_sync+0x43/0x60 fs/file_table.c:516
 __do_sys_close fs/open.c:1567 [inline]
 __se_sys_close+0xf9/0x1a0 fs/open.c:1552
 __x64_sys_close+0x1f/0x30 fs/open.c:1552
 x64_sys_call+0x25cb/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:4
 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: 0x00000001 -> 0x00000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 UID: 0 PID: 3321 Comm: syz-executor Not tainted 6.12.0-rc6-syzkaller-00077-g2e1b3cc9d7f7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
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