rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P13533/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=54837, q=604 ncpus=2)
task:kworker/u8:28   state:R  running task     stack:28264 pid:13533 tgid:13533 ppid:7772   task_flags:0x8040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5325 [inline]
 __schedule+0x1190/0x5de0 kernel/sched/core.c:6929
 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7256
 irqentry_exit+0x36/0x90 kernel/entry/common.c:211
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__sanitizer_cov_trace_switch+0x54/0x90 kernel/kcov.c:350
Code: 41 bd 03 00 00 00 4c 8b 75 00 31 db 4d 85 f6 74 1e 48 8b 74 dd 10 48 8b 4c 24 28 4c 89 e2 4c 89 ef 48 83 c3 01 e8 8c fd ff ff <49> 39 de 75 e2 5b 5d 41 5c 41 5d 41 5e e9 0a 40 a6 09 41 bd 07 00
RSP: 0018:ffffc9001cfcf740 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffffffff845d69c8
RDX: ffff88802574a480 RSI: 0000000000000002 RDI: 0000000000000005
RBP: ffffffff8be8dc40 R08: 0000000000000005 R09: 0000000000000002
R10: 0000000000000005 R11: 0000000000000001 R12: 0000000000000005
R13: 0000000000000005 R14: 0000000000000005 R15: 0000000000000001
 constraint_expr_eval+0x188/0x16a0 security/selinux/ss/services.c:280
 context_struct_compute_av+0xaad/0x1270 security/selinux/ss/services.c:692
 security_compute_av+0x5ec/0x11d0 security/selinux/ss/services.c:1177
 avc_compute_av+0x83/0x7f0 security/selinux/avc.c:991
 avc_perm_nonode+0xab/0x180 security/selinux/avc.c:1116
 avc_has_perm_noaudit+0x2de/0x3b0 security/selinux/avc.c:1159
 avc_has_perm+0xbe/0x1f0 security/selinux/avc.c:1194
 selinux_bprm_creds_for_exec+0x9e1/0xd70 security/selinux/hooks.c:2418
 security_bprm_creds_for_exec+0x84/0x1e0 security/security.c:1300
 bprm_execve fs/exec.c:1750 [inline]
 bprm_execve+0x470/0x1640 fs/exec.c:1730
 kernel_execve+0x2ef/0x3b0 fs/exec.c:1920
 call_usermodehelper_exec_async+0x255/0x4c0 kernel/umh.c:109
 ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: rcu_preempt kthread starved for 10532 jiffies! g54837 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
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:28192 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5325 [inline]
 __schedule+0x1190/0x5de0 kernel/sched/core.c:6929
 __schedule_loop kernel/sched/core.c:7011 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:7026
 schedule_timeout+0x123/0x290 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x1ea/0xaf0 kernel/rcu/tree.c:2083
 rcu_gp_kthread+0x26d/0x380 kernel/rcu/tree.c:2285
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:82
Code: 07 6d 02 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 43 d5 29 00 fb f4 <e9> 3c 0a 03 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
RSP: 0018:ffffc90000197de8 EFLAGS: 000002c6
RAX: 0000000001db8eed RBX: 0000000000000001 RCX: ffffffff8b6052a9
RDX: 0000000000000000 RSI: ffffffff8da2a287 RDI: ffffffff8bf06e40
RBP: ffffed1003adb490 R08: 0000000000000001 R09: ffffed10170a6655
R10: ffff8880b85332ab R11: 0000000000000001 R12: 0000000000000001
R13: ffff88801d6da480 R14: ffffffff9081f6d0 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888124b0a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe99ff966c8 CR3: 0000000032cd6000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 arch_safe_halt arch/x86/include/asm/paravirt.h:107 [inline]
 default_idle+0x13/0x20 arch/x86/kernel/process.c:767
 default_idle_call+0x6c/0xb0 kernel/sched/idle.c:122
 cpuidle_idle_call kernel/sched/idle.c:190 [inline]
 do_idle+0x38d/0x500 kernel/sched/idle.c:330
 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:428
 start_secondary+0x21d/0x2b0 arch/x86/kernel/smpboot.c:315
 common_startup_64+0x13e/0x148
 </TASK>