rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
	(detected by 0, t=10502 jiffies, g=25873, q=276 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294965274-4294954772), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10502 jiffies! g25873 f0x2 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:25528 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0x143f/0x4570 kernel/sched/core.c:6561
 schedule+0xbf/0x180 kernel/sched/core.c:6637
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1965
 rcu_gp_fqs_loop+0x2d2/0x1150 kernel/rcu/tree.c:1706
 rcu_gp_kthread+0xa3/0x3b0 kernel/rcu/tree.c:1905
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </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 PID: 6992 Comm: syz.4.1143 Not tainted 6.1.101-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:85 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x7b/0x290 mm/kasan/generic.c:189
Code: 00 00 00 00 fc ff df 4f 8d 34 1a 4c 89 f5 4c 29 cd 48 83 fd 10 7f 26 48 85 ed 0f 84 3a 01 00 00 49 f7 d2 49 01 da 41 80 39 00 <0f> 85 c4 01 00 00 49 ff c1 49 ff c2 75 ee e9 1d 01 00 00 45 89 cf
RSP: 0018:ffffc900001e0278 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 1ffffffff1d3379d RCX: ffffffff816a70b3
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e99bce8
RBP: 0000000000000001 R08: dffffc0000000000 R09: fffffbfff1d3379d
R10: ffffffffffffffff R11: dffffc0000000001 R12: 1ffff9200003c05c
R13: dffffc0000000000 R14: fffffbfff1d3379e R15: 0000000000000000
FS:  00007f75b91dc6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ef19ff8 CR3: 000000006536d000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 instrument_atomic_read include/linux/instrumented.h:72 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 cpumask_test_cpu include/linux/cpumask.h:444 [inline]
 cpu_online include/linux/cpumask.h:1030 [inline]
 trace_lock_acquire include/trace/events/lock.h:24 [inline]
 lock_acquire+0x4c3/0x5a0 kernel/locking/lockdep.c:5633
 seqcount_lockdep_reader_access+0xf8/0x220 include/linux/seqlock.h:102
 ktime_get_update_offsets_now+0x38/0x420 kernel/time/timekeeping.c:2317
 hrtimer_update_base kernel/time/hrtimer.c:631 [inline]
 hrtimer_interrupt+0x12f/0x980 kernel/time/hrtimer.c:1794
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 52 e7 32 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> d7 26 af f6 65 8b 05 f8 32 53 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc900001e0720 EFLAGS: 00000206
RAX: 5ebd7e24d8299600 RBX: 1ffff9200003c0e8 RCX: ffffffff816ad9fa
RDX: dffffc0000000000 RSI: ffffffff8b0c0240 RDI: 0000000000000001
RBP: ffffc900001e07b8 R08: dffffc0000000000 R09: fffffbfff20e725c
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff9200003c0e4 R14: ffffc900001e0740 R15: 0000000000000246
 __debug_check_no_obj_freed lib/debugobjects.c:987 [inline]
 debug_check_no_obj_freed+0x455/0x4e0 lib/debugobjects.c:1008
 free_pages_prepare mm/page_alloc.c:1450 [inline]
 free_pcp_prepare mm/page_alloc.c:1494 [inline]
 free_unref_page_prepare+0x319/0x1120 mm/page_alloc.c:3362
 free_unref_page+0x33/0x3e0 mm/page_alloc.c:3457
 __skb_frag_unref include/linux/skbuff.h:3436 [inline]
 skb_release_data+0x37f/0x7a0 net/core/skbuff.c:785
 skb_release_all net/core/skbuff.c:856 [inline]
 __kfree_skb+0x4c/0x60 net/core/skbuff.c:870
 tcp_write_queue_purge+0x132/0x2f0 net/ipv4/tcp.c:3098
 tcp_write_err net/ipv4/tcp_timer.c:73 [inline]
 tcp_write_timeout net/ipv4/tcp_timer.c:277 [inline]
 tcp_retransmit_timer+0x133a/0x28b0 net/ipv4/tcp_timer.c:551
 tcp_write_timer+0x12e/0x280 net/ipv4/tcp_timer.c:680
 call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504
 expire_timers kernel/time/timer.c:1549 [inline]
 __run_timers+0x67c/0x890 kernel/time/timer.c:1820
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833
 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571
 __do_softirq kernel/softirq.c:605 [inline]
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666
 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:schedule+0xbf/0x180 kernel/sched/core.c:6638
Code: 00 e8 65 09 6e f9 4c 89 e3 48 c1 eb 03 eb 0a 49 f7 04 24 08 00 00 00 74 39 bf 01 00 00 00 e8 48 e7 b0 f6 31 ff e8 d1 b9 ff ff <bf> 01 00 00 00 e8 b7 e8 b0 f6 4c 89 e7 be 08 00 00 00 e8 9a aa 34
RSP: 0018:ffffc9000421fbd0 EFLAGS: 00000246
RAX: 5ebd7e24d8299600 RBX: 1ffff1100faaa000 RCX: 1ffff92000843f60
RDX: dffffc0000000000 RSI: ffffffff8b0c0240 RDI: ffff88807d5515f8
RBP: ffffc9000421fd60 R08: dffffc0000000000 R09: fffffbfff20e7264
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807d550000
R13: ffffffff8d39a8e0 R14: ffff88807d550018 R15: dffffc0000000000
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6696
 mutex_optimistic_spin kernel/locking/mutex.c:510 [inline]
 __mutex_lock_common kernel/locking/mutex.c:607 [inline]
 __mutex_lock+0x3a6/0xd80 kernel/locking/mutex.c:747
 bpf_enable_runtime_stats kernel/bpf/syscall.c:4845 [inline]
 bpf_enable_stats+0x93/0x140 kernel/bpf/syscall.c:4874
 __sys_bpf+0x60a/0x6c0 kernel/bpf/syscall.c:5103
 __do_sys_bpf kernel/bpf/syscall.c:5124 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5122 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5122
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f75b8377299
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f75b91dc048 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f75b8505f80 RCX: 00007f75b8377299
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000020
RBP: 00007f75b83e48e6 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f75b8505f80 R15: 00007ffe82d22fb8
 </TASK>