rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (2 ticks this GP) idle=54e4/1/0x4000000000000000 softirq=111280/111280 fqs=0
rcu: 	(detected by 0, t=10504 jiffies, g=89353, q=536 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 27946 Comm: syz.3.5183 Not tainted 6.12.0-rc6-syzkaller-00077-g2e1b3cc9d7f7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:kasan_check_range+0x12/0x1a0 mm/kasan/generic.c:188
Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 85 f6 0f 84 50 01 00 00 48 89 f8 41 54 <44> 0f b6 c2 48 01 f0 55 53 0f 82 c6 00 00 00 48 b8 ff ff ff ff ff
RSP: 0018:ffffc90000a18b28 EFLAGS: 00000002
RAX: ffffffff96e2dc40 RBX: 0000000000000022 RCX: ffffffff8169b5ce
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff96e2dc40
RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff2dc5b88
R10: ffffffff96e2dc47 R11: 0000000000000002 R12: 0000000000000002
R13: ffff88803027d388 R14: 0000000000000022 R15: ffff88803027c880
FS:  00007fb9f8bec6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c27821b CR3: 000000001cea6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 hlock_class+0x4e/0x130 kernel/locking/lockdep.c:228
 check_wait_context kernel/locking/lockdep.c:4827 [inline]
 __lock_acquire+0x453/0x3ce0 kernel/locking/lockdep.c:5152
 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5825
 rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 rcu_read_lock include/linux/rcupdate.h:849 [inline]
 advance_sched+0x67f/0xc60 net/sched/sch_taprio.c:985
 __run_hrtimer kernel/time/hrtimer.c:1691 [inline]
 __hrtimer_run_queues+0x20a/0xae0 kernel/time/hrtimer.c:1755
 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1817
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
 __sysvec_apic_timer_interrupt+0x10f/0x400 arch/x86/kernel/apic/apic.c:1055
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0x9f/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:lockdep_unregister_key+0x1b2/0x2b0 kernel/locking/lockdep.c:6569
Code: 54 fd ff ff 48 89 df e8 bc c3 ff ff 89 c3 e8 05 db ff ff 9c 58 f6 c4 02 0f 85 92 00 00 00 41 f7 c5 00 02 00 00 74 01 fb 84 db <75> 4f 5b 5d 41 5c 41 5d 41 5e 41 5f e9 ed b0 0a 00 48 c7 c0 18 8c
RSP: 0018:ffffc9000d52f2e8 EFLAGS: 00000202
RAX: 0000000000000046 RBX: 0000000000000001 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8b6cd300 RDI: ffffffff8bd1b2c0
RBP: ffff88806c15f298 R08: ffffffff937e9154 R09: 0000000000025c2a
R10: ffffffff96e0fbd7 R11: ffffffff8b400130 R12: ffff888024d58ff8
R13: 0000000000000246 R14: ffffffff96fc33b8 R15: ffff88806c15f2a0
 __qdisc_destroy+0x11a/0x4a0 net/sched/sch_generic.c:1085
 qdisc_put+0xab/0xe0 net/sched/sch_generic.c:1111
 taprio_attach+0x203/0x370 net/sched/sch_taprio.c:2149
 qdisc_graft+0xe12/0x1780 net/sched/sch_api.c:1175
 tc_modify_qdisc+0x1145/0x1c40 net/sched/sch_api.c:1793
 rtnetlink_rcv_msg+0x3c7/0xea0 net/core/rtnetlink.c:6675
 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2551
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg net/socket.c:744 [inline]
 ____sys_sendmsg+0xaaf/0xc90 net/socket.c:2607
 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2661
 __sys_sendmsg+0x117/0x1f0 net/socket.c:2690
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb9f7d7e719
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:00007fb9f8bec038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fb9f7f35f80 RCX: 00007fb9f7d7e719
RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004
RBP: 00007fb9f7df139e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fb9f7f35f80 R15: 00007ffefee32cf8
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10503 jiffies! g89353 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=80431
rcu: rcu_preempt kthread starved for 10504 jiffies! g89353 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:27696 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0xe55/0x5740 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2615
 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2045
 rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2247
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>