------------[ cut here ]------------ do not call blocking ops when !TASK_RUNNING; state=2 set at [<0000000039a70ad1>] 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#0: syz.3.1320/8904 Modules linked in: CPU: 0 UID: 0 PID: 8904 Comm: syz.3.1320 Not tainted syzkaller #0 PREEMPT 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 : ffff800095267930 x29: ffff800095267930 x28: ffff8000805a793c x27: ffff800095267a00 x26: 0000000000000000 x25: ffff800095267a08 x24: 0000000000000000 x23: ffff700012a4cf3c x22: ffff0000c4ced150 x21: 0000000000000002 x20: ffff8000869ca160 x19: 000000000000026f x18: 00000000ffffffff x17: ffff8000801672c8 x16: ffff80008016750c x15: ffff800080348f2c x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000080000 x9 : 7e0dfa19f84bb900 x8 : 7e0dfa19f84bb900 x7 : ffff80008048c60c x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000802f6830 x2 : 0000000100000000 x1 : ffff0000c4ceba80 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: 112 hardirqs last enabled at (111): [] vprintk_store+0x924/0xb94 kernel/printk/printk.c:2385 hardirqs last disabled at (112): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:445 softirqs last enabled at (88): [] local_bh_enable include/linux/bottom_half.h:33 [inline] softirqs last enabled at (88): [] put_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:251 [inline] softirqs last enabled at (88): [] fpsimd_restore_current_state+0x39c/0x9c8 arch/arm64/kernel/fpsimd.c:1797 softirqs last disabled at (86): [] local_bh_disable include/linux/bottom_half.h:20 [inline] softirqs last disabled at (86): [] get_cpu_fpsimd_context arch/arm64/kernel/fpsimd.c:234 [inline] softirqs last disabled at (86): [] fpsimd_restore_current_state+0x44/0x9c8 arch/arm64/kernel/fpsimd.c:1790 ---[ end trace 0000000000000000 ]---