------------[ cut here ]------------ WARNING: CPU: 1 PID: 9601 at include/linux/cpumask.h:143 schedstat_start+0x1a0/0x20c kernel/sched/stats.c:206 Modules linked in: CPU: 1 PID: 9601 Comm: syz-executor.0 Not tainted 6.3.0-rc1-syzkaller-gfe15c26ee26e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : cpu_max_bits_warn kernel/sched/stats.c:206 [inline] pc : cpumask_check include/linux/cpumask.h:150 [inline] pc : cpumask_next include/linux/cpumask.h:212 [inline] pc : schedstat_start+0x1a0/0x20c kernel/sched/stats.c:196 lr : seq_read_iter+0x378/0xc44 fs/seq_file.c:225 sp : ffff8000243675a0 x29: ffff8000243675b0 x28: ffff0000d500b440 x27: 1fffe0001aa01688 x26: ffff0000d500b390 x25: dfff800000000000 x24: 0000000000000007 x23: ffff800015cdd558 x22: 1fffe0001aa01674 x21: dfff800000000000 x20: ffff800015cdd000 x19: ffff0000d500b3a0 x18: 1fffe000282fc9a6 x17: 00000000ffff0000 x16: ffff80000826e470 x15: 0000000000000000 x14: 1ffff00002b9c0b2 x13: dfff800000000000 x12: 0000000000040000 x11: 1ffff00002b9baab x10: 0000000000000002 x9 : ffff800008af6624 x8 : 0000000000000009 x7 : ffff800008af63c8 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80000830ba14 x2 : ffff0000ccf651c0 x1 : ffff0000d500b3a0 x0 : ffff0000d500b378 Call trace: schedstat_start+0x1a0/0x20c kernel/sched/stats.c:206 seq_read_iter+0x378/0xc44 fs/seq_file.c:225 proc_reg_read_iter+0x18c/0x2bc fs/proc/inode.c:305 call_read_iter include/linux/fs.h:1845 [inline] generic_file_splice_read+0x1e0/0x508 fs/splice.c:402 do_splice_to fs/splice.c:885 [inline] splice_direct_to_actor+0x30c/0x944 fs/splice.c:957 do_splice_direct+0x1f4/0x334 fs/splice.c:1066 do_sendfile+0x4bc/0xc70 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64 fs/read_write.c:1309 [inline] __arm64_sys_sendfile64+0x160/0x3b4 fs/read_write.c:1309 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 irq event stamp: 290 hardirqs last enabled at (289): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (289): [] _raw_spin_unlock_irqrestore+0x44/0xa4 kernel/locking/spinlock.c:194 hardirqs last disabled at (290): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (278): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (272): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---