rcu: INFO: rcu_sched self-detected stall on CPU
rcu: 	1-...!: (1 GPs behind) idle=e93/1/0x4000000000000000 softirq=6436/6458 fqs=1 
	(t=10000 jiffies g=1361 q=826)
rcu: rcu_sched kthread starved for 9998 jiffies! g1361 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: 	Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_sched       state:R  running task     stack:14368 pid:   12 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x2b8/0x790 kernel/sched/core.c:6376
 schedule+0x53/0x90 kernel/sched/core.c:6459
 schedule_timeout+0xaf/0x140 kernel/time/timer.c:1914
 rcu_gp_fqs_loop+0xe2/0x320 kernel/rcu/tree.c:1972
 rcu_gp_kthread+0x77/0xe0 kernel/rcu/tree.c:2145
 kthread+0x10b/0x130 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3946 Comm: syz-executor.3 Not tainted 5.15.158-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:__switch_to_asm+0x3b/0x60 arch/x86/entry/entry_64.S:260
Code: 48 8b a6 d8 16 00 00 48 8b 9e 68 05 00 00 65 48 89 1c 25 28 00 00 00 49 c7 c4 10 00 00 00 e8 01 00 00 00 cc e8 01 00 00 00 cc <48> 83 c4 10 49 ff cc 75 eb 0f ae e8 41 5f 41 5e 41 5d 41 5c 5b 5d
RSP: 0018:ffffc90000ea3d58 EFLAGS: 00000016
RAX: 0000000000000000 RBX: 8a803b761f3ace00 RCX: ffffc90000f139e4
RDX: 0000000000000000 RSI: ffff88810b063600 RDI: ffff88810b34b600
RBP: ffffc90000f13a70 R08: ffff88810b348480 R09: 000000000000010b
R10: ffff888237c2bb00 R11: 0000000000000001 R12: 000000000000000f
R13: ffff88810b34b600 R14: ffff88810b063600 R15: ffff888237c2bb18
FS:  00007f25cf0ab6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000021000000 CR3: 0000000178798000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
NMI backtrace for cpu 1
CPU: 1 PID: 3952 Comm: syz-executor.5 Not tainted 5.15.158-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x41/0x5e lib/dump_stack.c:106
 nmi_cpu_backtrace.cold+0x32/0x80 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x81/0x90 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline]
 rcu_dump_cpu_stacks+0xa5/0xd3 kernel/rcu/tree_stall.h:349
 print_cpu_stall kernel/rcu/tree_stall.h:633 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:727 [inline]
 rcu_pending kernel/rcu/tree.c:3932 [inline]
 rcu_sched_clock_irq.cold+0xc7/0x1e7 kernel/rcu/tree.c:2619
 update_process_times+0x87/0xc0 kernel/time/timer.c:1818
 tick_sched_handle+0x1d/0x50 kernel/time/tick-sched.c:254
 tick_sched_timer+0x5c/0x70 kernel/time/tick-sched.c:1473
 __run_hrtimer kernel/time/hrtimer.c:1686 [inline]
 __hrtimer_run_queues+0x138/0x2e0 kernel/time/hrtimer.c:1750
 hrtimer_interrupt+0x109/0x230 kernel/time/hrtimer.c:1812
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
 __sysvec_apic_timer_interrupt+0x63/0x100 arch/x86/kernel/apic/apic.c:1102
 sysvec_apic_timer_interrupt+0x65/0x90 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:schedule_timeout+0x104/0x140 kernel/time/timer.c:1891
Code: 00 00 00 48 0f 48 c2 48 8b 4c 24 60 65 48 2b 0c 25 28 00 00 00 75 18 48 83 c4 68 5d c3 48 89 3c 24 e8 20 a0 ff ff 48 8b 3c 24 <48> 89 f8 eb d8 e8 a2 16 ff ff 48 89 fe 48 c7 c7 30 eb 89 82 e8 79
RSP: 0018:ffffc90000f1ba98 EFLAGS: 00000246
RAX: 0000000000400140 RBX: ffff88817d94f080 RCX: 0000000000000000
RDX: ffffffff810950e1 RSI: ffff888237d2bb18 RDI: 7fffffffffffffff
RBP: 7fffffffffffffff R08: ffff88817cd50000 R09: 0000000000000000
R10: 0000000000080000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff88817d94f740 R14: 0000000000000000 R15: 0000000000000000
 unix_wait_for_peer+0xc4/0xd0 net/unix/af_unix.c:1313
 unix_dgram_sendmsg+0x958/0x9a0 net/unix/af_unix.c:1911
 sock_sendmsg_nosec net/socket.c:704 [inline]
 __sock_sendmsg+0x2e/0x40 net/socket.c:716
 ____sys_sendmsg+0x13d/0x250 net/socket.c:2431
 ___sys_sendmsg+0x6e/0xb0 net/socket.c:2485
 __sys_sendmmsg+0xb0/0x1b0 net/socket.c:2571
 __do_sys_sendmmsg net/socket.c:2600 [inline]
 __se_sys_sendmmsg net/socket.c:2597 [inline]
 __x64_sys_sendmmsg+0x1b/0x20 net/socket.c:2597
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x33/0x80 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f0fd3763ae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0fd32e60c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f0fd3882f80 RCX: 00007f0fd3763ae9
RDX: 0000000000000318 RSI: 00000000200bd000 RDI: 0000000000000004
RBP: 00007f0fd37af47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000006 R14: 00007f0fd3882f80 R15: 00007fff940cb048
 </TASK>