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do not call blocking ops when !TASK_RUNNING; state=2 set at [<000000007fbf2c9e>] prepare_to_wait_event+0x2e4/0x3ac kernel/sched/wait.c:-1
WARNING: kernel/sched/core.c:9124 at __might_sleep+0xc0/0xdc kernel/sched/core.c:9120, CPU#1: syz.3.2050/12703
Modules linked in:
CPU: 1 UID: 0 PID: 12703 Comm: syz.3.2050 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026
pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : __might_sleep+0xc0/0xdc kernel/sched/core.c:9120
lr : __might_sleep+0xc0/0xdc kernel/sched/core.c:9120
sp : ffff800090ea7930
x29: ffff800090ea7930 x28: ffff8000805a78e8 x27: ffff800090ea7a00
x26: 0000000000000000 x25: ffff800090ea7a08 x24: 0000000000000000
x23: ffff7000121d4f3c x22: ffff0000c5d7ee90 x21: 0000000000000002
x20: ffff8000869ba160 x19: 000000000000026f x18: 1fffe00034bbbe28
x17: 0000000000000003 x16: ffff800088b27000 x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000
x11: ffff800080156070 x10: 0000000000000003 x9 : 77a78a1c0f067d00
x8 : 77a78a1c0f067d00 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080156118
x2 : 0000000000000000 x1 : ffff0000c5d7d7c0 x0 : 0000000000000001
Call trace:
 __might_sleep+0xc0/0xdc kernel/sched/core.c:9120 (P)
 __mutex_lock_common kernel/locking/mutex.c:623 [inline]
 __mutex_lock+0xf8/0xf14 kernel/locking/mutex.c:821
 mutex_lock_nested+0x24/0x30 kernel/locking/mutex.c:874
 class_mutex_constructor include/linux/mutex.h:253 [inline]
 futex_pivot_pending+0x30/0xa4 kernel/futex/core.c:1789
 futex_hash_allocate+0x73c/0xc20 kernel/futex/core.c:1872
 futex_hash_prctl+0xd0/0x324 kernel/futex/core.c:2027
 __do_sys_prctl kernel/sys.c:2885 [inline]
 __se_sys_prctl kernel/sys.c:2534 [inline]
 __arm64_sys_prctl+0x8d0/0x13d0 kernel/sys.c:2534
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140
 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:758
 el0t_64_sync_handler+0x44/0x104 arch/arm64/kernel/entry-common.c:777
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:590
irq event stamp: 116
hardirqs last  enabled at (115): [<ffff8000803b701c>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1673 [inline]
hardirqs last  enabled at (115): [<ffff8000803b701c>] finish_lock_switch kernel/sched/core.c:5241 [inline]
hardirqs last  enabled at (115): [<ffff8000803b701c>] finish_task_switch+0x234/0x858 kernel/sched/core.c:5359
hardirqs last disabled at (116): [<ffff8000868f3d60>] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445
softirqs last  enabled at (88): [<ffff80008013b050>] local_bh_enable include/linux/bottom_half.h:33 [inline]
softirqs last  enabled at (88): [<ffff80008013b050>] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline]
softirqs last  enabled at (88): [<ffff80008013b050>] fpsimd_restore_current_state+0x39c/0x9c8 arch/arm64/kernel/fpsimd.c:1797
softirqs last disabled at (86): [<ffff80008013acf8>] local_bh_disable include/linux/bottom_half.h:20 [inline]
softirqs last disabled at (86): [<ffff80008013acf8>] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline]
softirqs last disabled at (86): [<ffff80008013acf8>] fpsimd_restore_current_state+0x44/0x9c8 arch/arm64/kernel/fpsimd.c:1790
---[ end trace 0000000000000000 ]---