------------[ cut here ]------------
do not call blocking ops when !TASK_RUNNING; state=2001 set at [<ffffffff81bb1874>] futex_wait_setup+0x3c4/0x590 kernel/futex/waitwake.c:694
WARNING: kernel/sched/core.c:9161 at __might_sleep+0x92/0xf0 kernel/sched/core.c:9157, CPU#0: syz.1.2926/17134
Modules linked in:
CPU: 0 UID: 0 PID: 17134 Comm: syz.1.2926 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__might_sleep+0xac/0xf0 kernel/sched/core.c:9157
Code: 00 00 48 89 3c 24 41 89 f5 4c 8d 35 7e 85 e6 0e 43 80 3c 3c 00 74 08 48 89 df e8 af 00 a1 00 48 8b 0b 4c 89 f7 89 ee 48 89 ca <67> 48 0f b9 3a 44 89 ee 48 8b 3c 24 eb b5 44 89 f1 80 e1 07 80 c1
RSP: 0018:ffffc90000007c08 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888029695728 RCX: ffffffff81bb1874
RDX: ffffffff81bb1874 RSI: 0000000000002001 RDI: ffffffff907d0050
RBP: 0000000000002001 R08: 0000000000000100 R09: 1ffffffff20f404f
R10: dffffc0000000000 R11: fffffbfff20f4050 R12: 1ffff110052d2ae5
R13: 00000000000011c8 R14: ffffffff907d0050 R15: dffffc0000000000
FS:  000055555ba80500(0000) GS:ffff888124ce0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3e3fb1 CR3: 0000000077d74000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 __cancel_work_sync+0x6d/0x110 kernel/workqueue.c:4552
 mmc_free_host+0x19/0x30 drivers/mmc/core/host.c:700
 call_timer_fn+0x18d/0x5f0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2405
 handle_softirqs+0x226/0x860 kernel/softirq.c:645
 __do_softirq kernel/softirq.c:679 [inline]
 invoke_softirq kernel/softirq.c:519 [inline]
 __irq_exit_rcu+0xcb/0x220 kernel/softirq.c:767
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:784
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline]
RIP: 0010:rcu_is_watching+0x11/0xb0 kernel/rcu/tree.c:753
Code: 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 41 57 41 56 53 65 48 ff 05 cf b4 e7 11 <e8> 6a c6 36 0a 89 c3 83 f8 08 73 66 49 bf 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90004da7950 EFLAGS: 00000283
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffffffff8ec10ee0
RBP: 1ffff110052d27d3 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff20f4050 R12: ffffffff8ec10ee0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
 trace_lock_acquire include/trace/events/lock.h:23 [inline]
 lock_acquire+0x58/0x350 kernel/locking/lockdep.c:5871
 sched_submit_work kernel/sched/core.c:7305 [inline]
 schedule+0xb0/0x2b0 kernel/sched/core.c:7361
 futex_do_wait kernel/futex/waitwake.c:387 [inline]
 __futex_wait+0x1d3/0x400 kernel/futex/waitwake.c:722
 futex_wait+0x121/0x390 kernel/futex/waitwake.c:750
 do_futex+0x3e7/0x4e0 kernel/futex/syscalls.c:133
 __do_sys_futex kernel/futex/syscalls.c:210 [inline]
 __se_sys_futex+0x3a8/0x450 kernel/futex/syscalls.c:191
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff8f9f9e159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff8fa34fba8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00000000000cd351 RCX: 00007ff8f9f9e159
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ff8fa225fac
RBP: 0000000000000032 R08: 3fffffffffffffff R09: 0000000000000000
R10: 00007ff8fa34fcb0 R11: 0000000000000246 R12: 00007ff8fa34fcd0
R13: 00007ff8fa225fac R14: 00000000000cd383 R15: 00007ff8fa34fcb0
 </TASK>
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	48 89 3c 24          	mov    %rdi,(%rsp)
   6:	41 89 f5             	mov    %esi,%r13d
   9:	4c 8d 35 7e 85 e6 0e 	lea    0xee6857e(%rip),%r14        # 0xee6858e
  10:	43 80 3c 3c 00       	cmpb   $0x0,(%r12,%r15,1)
  15:	74 08                	je     0x1f
  17:	48 89 df             	mov    %rbx,%rdi
  1a:	e8 af 00 a1 00       	call   0xa100ce
  1f:	48 8b 0b             	mov    (%rbx),%rcx
  22:	4c 89 f7             	mov    %r14,%rdi
  25:	89 ee                	mov    %ebp,%esi
  27:	48 89 ca             	mov    %rcx,%rdx
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	44 89 ee             	mov    %r13d,%esi
  32:	48 8b 3c 24          	mov    (%rsp),%rdi
  36:	eb b5                	jmp    0xffffffed
  38:	44 89 f1             	mov    %r14d,%ecx
  3b:	80 e1 07             	and    $0x7,%cl
  3e:	80                   	.byte 0x80
  3f:	c1                   	.byte 0xc1