rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P7126/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=39421, q=939 ncpus=2)
task:syz-executor    state:R  running task     stack:29072 pid:7126  tgid:7126  ppid:6786   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0xf15/0x5d00 kernel/sched/core.c:6745
 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7067
 irqentry_exit+0x36/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:ebitmap_hash+0x21/0x6b0 security/selinux/ss/ebitmap.c:565
Code: 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 49 89 fc 55 53 89 f3 48 83 ec 08 e8 f4 76 50 fd 49 8d 7c 24 08 <48> b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84
RSP: 0018:ffffc9000323f8b8 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 00000000b0e21446 RCX: 00000000d6c69666
RDX: ffff888063ec9e00 RSI: ffffffff843d6e2c RDI: ffffc9000323fbc8
RBP: 00000000ad4bd851 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000002 R12: ffffc9000323fbc0
R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
 mls_range_hash security/selinux/ss/mls.h:92 [inline]
 context_compute_hash+0x20f/0x2a0 security/selinux/ss/context.c:30
 sidtab_context_to_sid+0x2b/0x1030 security/selinux/ss/sidtab.c:271
 security_compute_sid+0xb12/0x1cc0 security/selinux/ss/services.c:1881
 security_transition_sid+0x68/0x80 security/selinux/ss/services.c:1911
 selinux_determine_inode_label+0x231/0x330 security/selinux/hooks.c:1787
 may_create+0x274/0x360 security/selinux/hooks.c:1821
 security_inode_symlink+0xc3/0x110 security/security.c:2072
 vfs_symlink fs/namei.c:4491 [inline]
 vfs_symlink+0x37f/0x660 fs/namei.c:4479
 do_symlinkat+0x263/0x310 fs/namei.c:4521
 __do_sys_symlinkat fs/namei.c:4537 [inline]
 __se_sys_symlinkat fs/namei.c:4534 [inline]
 __x64_sys_symlinkat+0x97/0xc0 fs/namei.c:4534
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f94419751f7
RSP: 002b:00007ffdff3809b8 EFLAGS: 00000206 ORIG_RAX: 000000000000010a
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f94419751f7
RDX: 00007f94419e4af7 RSI: 00000000ffffff9c RDI: 00007ffdff380a80
RBP: 0000000000000001 R08: 0000000000000013 R09: 00007ffdff380707
R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffdff380a80
R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffdff380a80
 </TASK>
rcu: rcu_preempt kthread starved for 3361 jiffies! g39421 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:26640 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0xf15/0x5d00 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6837
 schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2581
 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2000
 rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2202
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline]
NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt+0x1a/0x20 drivers/acpi/processor_idle.c:111