------------[ cut here ]------------ WARNING: CPU: 1 PID: 17129 at include/linux/cpumask.h:143 schedstat_start+0x1a0/0x20c kernel/sched/stats.c:206 Modules linked in: CPU: 1 PID: 17129 Comm: syz-executor.1 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 : ffff80001f837860 x29: ffff80001f837870 x28: ffff0000ccec8ea8 x27: 1fffe000199d91d5 x26: ffff0000ccec8df8 x25: dfff800000000000 x24: 0000000000000007 x23: ffff800015cdd558 x22: 1fffe000199d91c1 x21: dfff800000000000 x20: ffff800015cdd000 x19: ffff0000ccec8e08 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: ffff0000ced0e05b x14: 0000000000000002 x13: 0000000000000006 x12: 0000000000040000 x11: 1ffff00002b9baab x10: 0000000000000002 x9 : ffff800008af661c x8 : 0000000000000009 x7 : 2030203020302030 x6 : 00000000200000ab x5 : 00000000200000ab x4 : 0000000000000005 x3 : 0000000000000a30 x2 : 0000000000000026 x1 : ffff0000ccec8e08 x0 : ffff0000ccec8de0 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 do_iter_read+0x578/0x998 fs/read_write.c:796 vfs_readv fs/read_write.c:916 [inline] do_preadv+0x1e4/0x324 fs/read_write.c:1008 __do_sys_preadv fs/read_write.c:1058 [inline] __se_sys_preadv fs/read_write.c:1053 [inline] __arm64_sys_preadv+0xa0/0xb8 fs/read_write.c:1053 __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: 180 hardirqs last enabled at (179): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (179): [] _raw_spin_unlock_irqrestore+0x44/0xa4 kernel/locking/spinlock.c:194 hardirqs last disabled at (180): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (150): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (148): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---