rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (2 ticks this GP) idle=484c/1/0x4000000000000000 softirq=33375/33375 fqs=0
rcu: 	(detected by 0, t=10502 jiffies, g=27301, q=787 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 9625 Comm: syz.2.1001 Not tainted 6.15.0-rc1-syzkaller-00187-g65d91192aa66 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:130 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x60/0x2a0 mm/kasan/generic.c:189
Code: 00 48 89 fb 48 c1 eb 03 49 ba 00 00 00 00 00 fc ff df 4e 8d 1c 13 49 ff c8 4d 89 c1 49 c1 e9 03 49 be 01 00 00 00 00 fc ff df <4f> 8d 3c 31 4c 89 fd 4c 29 dd 48 83 fd 10 7f 29 48 85 ed 0f 84 3e
RSP: 0018:ffffc90000a08be0 EFLAGS: 00000807
RAX: 1ffff110063cc301 RBX: 1ffff11006a7465c RCX: ffffffff8a26fdba
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8880353a32e0
RBP: 000000000001ffff R08: ffff8880353a32e7 R09: 1ffff11006a7465c
R10: dffffc0000000000 R11: ffffed1006a7465c R12: 0000000000000004
R13: ffff888031e61c08 R14: dffffc0000000001 R15: 0000000000000001
FS:  00007f1d60f466c0(0000) GS:ffff888125094000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055558a3a9808 CR3: 000000008060c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 atomic64_read include/linux/atomic/atomic-instrumented.h:1610 [inline]
 taprio_set_budgets+0x1ba/0x380 net/sched/sch_taprio.c:670
 advance_sched+0x98d/0xca0 net/sched/sch_taprio.c:977
 __run_hrtimer kernel/time/hrtimer.c:1761 [inline]
 __hrtimer_run_queues+0x5a6/0xd40 kernel/time/hrtimer.c:1825
 hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1887
 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:lockdep_unregister_key+0x29a/0x2f0 kernel/locking/lockdep.c:6613
Code: f0 56 6c 94 48 c7 c6 20 24 9f 81 e8 60 bd 09 00 e8 3b c8 09 00 e9 3b fe ff ff e8 81 9e 91 0a f7 c5 00 02 00 00 74 d2 fb 84 db <75> d1 eb e2 90 0f 0b 90 e9 35 ff ff ff 90 0f 0b 90 e9 46 ff ff ff
RSP: 0018:ffffc9001b1ef0a8 EFLAGS: 00000246
RAX: 2846e685ab841000 RBX: 0000000000000000 RCX: 000000000000ec72
RDX: ffffffff942c56e8 RSI: ffffffff8e7694f7 RDI: ffffffff8ca1b6a0
RBP: 0000000000000a07 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff9368c020
R13: 0000000000001000 R14: ffffffff946e5718 R15: ffff88807dc3c298
 __qdisc_destroy+0x165/0x410 net/sched/sch_generic.c:1080
 taprio_attach+0x24e/0x390 net/sched/sch_taprio.c:2147
 qdisc_graft+0x133f/0x1670 net/sched/sch_api.c:1175
 __tc_modify_qdisc net/sched/sch_api.c:1765 [inline]
 tc_modify_qdisc+0x1aa3/0x2610 net/sched/sch_api.c:1821
 rtnetlink_rcv_msg+0x7c2/0xd70 net/core/rtnetlink.c:6967
 netlink_rcv_skb+0x208/0x480 net/netlink/af_netlink.c:2534
 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
 netlink_unicast+0x7f8/0x9a0 net/netlink/af_netlink.c:1339
 netlink_sendmsg+0x8c3/0xcd0 net/netlink/af_netlink.c:1883
 sock_sendmsg_nosec net/socket.c:712 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:727
 ____sys_sendmsg+0x523/0x860 net/socket.c:2566
 ___sys_sendmsg net/socket.c:2620 [inline]
 __sys_sendmsg+0x271/0x360 net/socket.c:2652
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1d6018e169
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:00007f1d60f46038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f1d603b5fa0 RCX: 00007f1d6018e169
RDX: 0000000000000000 RSI: 00002000000007c0 RDI: 0000000000000009
RBP: 00007f1d60210a68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f1d603b5fa0 R15: 00007fffeb58a838
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g27301 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=10990
rcu: rcu_preempt kthread starved for 10502 jiffies! g27301 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:26688 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x1b88/0x5240 kernel/sched/core.c:6767
 __schedule_loop kernel/sched/core.c:6845 [inline]
 schedule+0x163/0x360 kernel/sched/core.c:6860
 schedule_timeout+0x15b/0x2b0 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x2e1/0x1340 kernel/rcu/tree.c:2046
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2248
 kthread+0x7b7/0x940 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>