rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 1, t=10506 jiffies, g=63169, q=162 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10506 (4295035715-4295025209), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10506 jiffies! g63169 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:R  running task     stack:25232 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6848
 schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </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 UID: 0 PID: 14485 Comm: syz.0.2061 Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__sanitizer_cov_trace_cmp8+0x7d/0x90 kernel/kcov.c:295
Code: c1 e1 05 48 8d 41 28 4c 39 c8 77 1e 49 ff c2 4c 89 12 48 c7 44 11 08 06 00 00 00 48 89 7c 11 10 48 89 74 11 18 4c 89 44 11 20 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90
RSP: 0018:ffffc90000007d00 EFLAGS: 00000006
RAX: 0000000000010000 RBX: 0000000000000001 RCX: ffff888079f43c00
RDX: 0000000000010000 RSI: ffff88805d325340 RDI: 0000000000000001
RBP: dffffc0000000000 R08: ffffffff8bbc8af8 R09: 1ffffffff2030ad6
R10: dffffc0000000000 R11: fffffbfff2030ad7 R12: 1ffff1100ba64a68
R13: ffff88805d325340 R14: ffff8880b862cad0 R15: ffff8880b862c880
FS:  00007fb2fdd226c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555589f45c8 CR3: 00000000664fe000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 timerqueue_del+0x48/0x100 lib/timerqueue.c:55
 __remove_hrtimer kernel/time/hrtimer.c:1109 [inline]
 __run_hrtimer kernel/time/hrtimer.c:1719 [inline]
 __hrtimer_run_queues+0x3d0/0xd30 kernel/time/hrtimer.c:1803
 hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1865
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:rcu_read_lock include/linux/rcupdate.h:850 [inline]
RIP: 0010:__bpf_trace_run kernel/trace/bpf_trace.c:2361 [inline]
RIP: 0010:bpf_trace_run2+0x231/0x540 kernel/trace/bpf_trace.c:2403
Code: b9 02 00 00 00 45 31 c0 45 31 c9 41 57 e8 97 63 cf ff 48 83 c4 08 e8 de 96 15 0a 89 c3 31 ff 89 c6 e8 73 2d f4 ff 85 db 74 10 <e8> 4a c4 d9 ff 84 c0 74 0e e8 21 29 f4 ff eb 56 e8 1a 29 f4 ff eb
RSP: 0018:ffffc9000dcc7920 EFLAGS: 00000202
RAX: 0000000000000002 RBX: 0000000000000001 RCX: ffff888079f43c00
RDX: ffff888079f43c00 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000dcc7a18 R08: ffffffff81ab4a9d R09: 1ffffffff284e310
R10: dffffc0000000000 R11: fffffbfff284e311 R12: ffffc9000ff81000
R13: ffff888079f45400 R14: 1ffff1100f3e8a80 R15: ffffffff81ab4a6c
 trace_kfree include/trace/events/kmem.h:94 [inline]
 kfree+0x382/0x430 mm/slub.c:4748
 ___sys_recvmsg net/socket.c:2846 [inline]
 do_recvmmsg+0x44e/0xab0 net/socket.c:2940
 __sys_recvmmsg net/socket.c:3014 [inline]
 __do_sys_recvmmsg net/socket.c:3037 [inline]
 __se_sys_recvmmsg net/socket.c:3030 [inline]
 __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3030
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb2fcf85d29
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:00007fb2fdd22038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007fb2fd176080 RCX: 00007fb2fcf85d29
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000004
RBP: 00007fb2fd001b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fb2fd176080 R15: 00007ffe792c9bc8
 </TASK>