rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P10718/1:b..l
	(detected by 1, t=10502 jiffies, g=40965, q=732 ncpus=2)
task:syz.3.1523      state:R  running task     stack:26840 pid:10718 ppid:4285   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5246 [inline]
 __schedule+0x107f/0x4030 kernel/sched/core.c:6563
 preempt_schedule_notrace+0xd9/0x120 kernel/sched/core.c:6825
 preempt_schedule_notrace_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:35
 kvm_clock_read arch/x86/kernel/kvmclock.c:80 [inline]
 kvm_sched_clock_read+0x2a/0x40 arch/x86/kernel/kvmclock.c:91
 __bpf_prog_run include/linux/filter.h:594 [inline]
 bpf_prog_run include/linux/filter.h:615 [inline]
 bpf_test_run+0x495/0x830 net/bpf/test_run.c:402
 bpf_prog_test_run_skb+0xdaf/0x18e0 net/bpf/test_run.c:1222
 bpf_prog_test_run+0x31c/0x390 kernel/bpf/syscall.c:3695
 __sys_bpf+0x62b/0x780 kernel/bpf/syscall.c:5053
 __do_sys_bpf kernel/bpf/syscall.c:5139 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5137 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5137
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fefdc59f559
RSP: 002b:00007fefda7f6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fefdc825fa0 RCX: 00007fefdc59f559
RDX: 0000000000000050 RSI: 0000200000000f00 RDI: 000000000000000a
RBP: 00007fefdc636b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fefdc826038 R14: 00007fefdc825fa0 R15: 00007fff4bea4dd8
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10481 jiffies! g40965 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=25288
rcu: rcu_preempt kthread starved for 10482 jiffies! g40965 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:27088 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5246 [inline]
 __schedule+0x107f/0x4030 kernel/sched/core.c:6563
 schedule+0xb9/0x180 kernel/sched/core.c:6639
 schedule_timeout+0x184/0x2d0 kernel/time/timer.c:2168
 rcu_gp_fqs_loop+0x303/0x1350 kernel/rcu/tree.c:1706
 rcu_gp_kthread+0x99/0x3b0 kernel/rcu/tree.c:1905
 kthread+0x29d/0x330 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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 10743 Comm: syz.4.1529 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:lock_release+0x1/0x920 kernel/locking/lockdep.c:5798
Code: 80 e1 07 80 c1 03 38 c1 0f 8c 67 fa ff ff 4c 89 f7 e8 d3 1e 6f 00 e9 5a fa ff ff 41 be 2f 00 00 00 e9 70 fa ff ff 0f 1f 00 55 <48> 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec e0 00 00
RSP: 0018:ffffc90000007af0 EFLAGS: 00000087
RAX: 0000000000000000 RBX: ffffffff818bf4cf RCX: ffff888024ed5a00
RDX: 0000000000000100 RSI: ffffffff818bf4cf RDI: ffffffff8db2d8a0
RBP: ffffc90000007bf8 R08: ffffc900000078e7 R09: 1ffff92000000f1c
R10: dffffc0000000000 R11: fffff52000000f1d R12: 0000000000120000
R13: 1ffff92000000f6c R14: ffff88802f2059a8 R15: 0000000000000000
FS:  00007fd79fefc6c0(0000) GS:ffff8880b8c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd79fe98ff8 CR3: 0000000031b44000 CR4: 00000000003506f0
DR0: 0000200000000740 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 rcu_lock_release include/linux/rcupdate.h:355 [inline]
 rcu_read_unlock include/linux/rcupdate.h:824 [inline]
 trace_call_bpf+0x5ca/0x6b0 kernel/trace/bpf_trace.c:137
 perf_trace_run_bpf_submit+0x79/0x1c0 kernel/events/core.c:10037
 perf_trace_preemptirq_template+0x268/0x320 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:variable_ffs arch/x86/include/asm/bitops.h:319 [inline]
RIP: 0010:handle_softirqs+0x1b7/0x910 kernel/softirq.c:584
Code: 89 7c 24 2c 0f b7 db 48 c7 c7 80 0f ab 8a e8 20 c2 eb 08 65 66 c7 05 46 61 b4 7e 00 00 e8 71 6e 39 00 fb 49 c7 c5 c0 a0 80 8d <89> 5c 24 34 b8 ff ff ff ff 0f bc 44 24 34 41 89 c6 41 ff c6 0f 84
RSP: 0018:ffffc90000007e20 EFLAGS: 00000282
RAX: 8f479829191ad500 RBX: 0000000000000200 RCX: 8f479829191ad500
RDX: dffffc0000000000 RSI: ffffffff8aac19a0 RDI: ffffffff8aff71e0
RBP: ffffc90000007f30 R08: ffff8880b8c357cb R09: 1ffff11017186af9
R10: dffffc0000000000 R11: ffffed1017186afa R12: dffffc0000000000
R13: ffffffff8d80a0c0 R14: ffff888024ed5a00 R15: 000000000000000a
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__rcu_read_unlock+0x44/0xd0 kernel/rcu/tree_plugin.h:425
Code: 7e 48 8d 9f 3c 04 00 00 49 89 dc 49 c1 ec 03 43 0f b6 04 3c 84 c0 75 48 ff 0b 75 1d 4c 8d b7 40 04 00 00 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 38 84 c0 75 5f 41 83 3e 00 75 20 43 0f b6 04 3c 84 c0
RSP: 0018:ffffc90003877810 EFLAGS: 00000a02
RAX: 1ffff110049dabc8 RBX: ffff888024ed5e3c RCX: ffff888024ed5a00
RDX: 0000000000000000 RSI: ffffffff8aff71c0 RDI: ffff888024ed5a00
RBP: ffffc90003877910 R08: ffff8880b8c357cb R09: 1ffff11017186af9
R10: dffffc0000000000 R11: ffffed1017186afa R12: 1ffff110049dabc7
R13: 1ffff9200070ef0c R14: ffff888024ed5e40 R15: dffffc0000000000
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 mod_memcg_page_state+0x4a8/0x950 include/linux/memcontrol.h:985
 __vmalloc_area_node mm/vmalloc.c:3136 [inline]
 __vmalloc_node_range+0xcc5/0x1380 mm/vmalloc.c:3300
 __vmalloc_node mm/vmalloc.c:3365 [inline]
 __vmalloc+0x76/0x80 mm/vmalloc.c:3379
 bpf_prog_alloc_no_stats+0x37/0x3a0 kernel/bpf/core.c:93
 bpf_prog_alloc+0x1c/0x1b0 kernel/bpf/core.c:131
 bpf_prog_load+0x7d4/0x1530 kernel/bpf/syscall.c:2597
 __sys_bpf+0x5b8/0x780 kernel/bpf/syscall.c:5035
 __do_sys_bpf kernel/bpf/syscall.c:5139 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5137 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5137
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fd79ef9f559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd79fefc028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fd79f226180 RCX: 00007fd79ef9f559
RDX: 0000000000000048 RSI: 00002000000023c0 RDI: 0000000000000005
RBP: 00007fd79f036b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd79f226218 R14: 00007fd79f226180 R15: 00007fff0ab36fb8
 </TASK>