rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P26502/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=119229, q=145 ncpus=2)
task:syz-executor.0  state:R  running task     stack:25200 pid:26502 ppid:5083   flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0xee1/0x59f0 kernel/sched/core.c:6711
 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6880
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45
 vprintk_emit+0x1fa/0x640 kernel/printk/printk.c:2308
 vprintk+0x89/0xa0 kernel/printk/printk_safe.c:50
 _printk+0xc8/0x100 kernel/printk/printk.c:2328
 validate_nla lib/nlattr.c:391 [inline]
 __nla_validate_parse+0x1719/0x2530 lib/nlattr.c:603
 __nla_parse+0x40/0x50 lib/nlattr.c:700
 nla_parse_nested_deprecated include/net/netlink.h:1281 [inline]
 ctnetlink_parse_tuple_proto+0xd4/0x510 net/netfilter/nf_conntrack_netlink.c:1357
 ctnetlink_parse_tuple_filter+0x528/0xaa0 net/netfilter/nf_conntrack_netlink.c:1473
 ctnetlink_parse_tuple net/netfilter/nf_conntrack_netlink.c:1505 [inline]
 ctnetlink_create_conntrack+0xaa6/0x1670 net/netfilter/nf_conntrack_netlink.c:2355
 ctnetlink_new_conntrack+0x607/0x1080 net/netfilter/nf_conntrack_netlink.c:2435
 nfnetlink_rcv_msg+0x9d5/0x1390 net/netfilter/nfnetlink.c:302
 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2546
 nfnetlink_rcv+0x1b4/0x430 net/netfilter/nfnetlink.c:659
 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
 netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1365
 netlink_sendmsg+0x93c/0xe30 net/netlink/af_netlink.c:1911
 sock_sendmsg_nosec net/socket.c:725 [inline]
 sock_sendmsg+0xd9/0x180 net/socket.c:748
 ____sys_sendmsg+0x6ac/0x940 net/socket.c:2494
 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2548
 __sys_sendmsg+0x117/0x1e0 net/socket.c:2577
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f961467cb29
RSP: 002b:00007f96153030c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f961479bf80 RCX: 00007f961467cb29
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003
RBP: 00007f96146c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f961479bf80 R15: 00007fff935d3928
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10496 jiffies! g119229 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=142047
rcu: rcu_preempt kthread starved for 10497 jiffies! g119229 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:28016 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0xee1/0x59f0 kernel/sched/core.c:6711
 schedule+0xe7/0x1b0 kernel/sched/core.c:6787
 schedule_timeout+0x157/0x2c0 kernel/time/timer.c:2167
 rcu_gp_fqs_loop+0x1ec/0xa50 kernel/rcu/tree.c:1613
 rcu_gp_kthread+0x249/0x380 kernel/rcu/tree.c:1812
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </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: 26510 Comm: syz-executor.3 Not tainted 6.5.0-rc2-next-20230721-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
RIP: 0010:write_comp_data+0x7/0x90 kernel/kcov.c:230
Code: 81 e2 00 01 ff 00 75 10 65 48 8b 04 25 40 ba 03 00 48 8b 80 f8 15 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 65 8b 05 31 d3 7c 7e <49> 89 f1 89 c6 49 89 d2 81 e6 00 01 00 00 49 89 f8 65 48 8b 14 25
RSP: 0018:ffffc90000007e10 EFLAGS: 00000046
RAX: 0000000080010002 RBX: ffff8880b982ba00 RCX: ffffffff8175fa41
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff88802c4bf340 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000000 R14: ffff88802c4bf340 R15: 0000000000000001
FS:  00007f774b8606c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f774ab9d988 CR3: 00000000789bb000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 trace_hrtimer_start include/trace/events/timer.h:202 [inline]
 debug_activate kernel/time/hrtimer.c:478 [inline]
 enqueue_hrtimer+0x291/0x310 kernel/time/hrtimer.c:1087
 __run_hrtimer kernel/time/hrtimer.c:1705 [inline]
 __hrtimer_run_queues+0xa0a/0xc10 kernel/time/hrtimer.c:1752
 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1098 [inline]
 __sysvec_apic_timer_interrupt+0x14a/0x430 arch/x86/kernel/apic/apic.c:1115
 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1109
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x70 kernel/locking/spinlock.c:194
Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 f6 3d 2e f7 48 89 df e8 ce bc 2e f7 f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f <bf> 01 00 00 00 e8 95 23 20 f7 65 8b 05 16 23 ca 75 85 c0 74 12 5b
RSP: 0018:ffffc90015f2fb60 EFLAGS: 00000246
RAX: 0000000000000002 RBX: ffffffff8c9d38c0 RCX: 1ffffffff1d581e9
RDX: 0000000000000000 RSI: ffffffff8a6c7de0 RDI: ffffffff8ac874c0
RBP: 0000000000000287 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8eac40d7 R11: 0000000000000000 R12: 000000000000ffff
R13: 1ffff92002be5f73 R14: ffffc90015f2fcb8 R15: 003b9aca00000000
 timekeeping_inject_offset+0x4c7/0x640 kernel/time/timekeeping.c:1392
 do_adjtimex+0x373/0xaa0 kernel/time/timekeeping.c:2444
 do_clock_adjtime kernel/time/posix-timers.c:1159 [inline]
 __do_sys_clock_adjtime+0x173/0x280 kernel/time/posix-timers.c:1171
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f774aa7cb29
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:00007f774b8600c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 00007f774ab9bf80 RCX: 00007f774aa7cb29
RDX: 0000000000000000 RSI: 00000000200022c0 RDI: 0000000000000000
RBP: 00007f774aac847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f774ab9bf80 R15: 00007ffd34bb10a8
 </TASK>