rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...0: (1 GPs behind) idle=e07/1/0x4000000000000000 softirq=9706/9707 fqs=5246 
	(detected by 0, t=10502 jiffies, g=10889, q=1735)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4713 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:lock_is_held_type+0x125/0x190 kernel/locking/lockdep.c:5668
Code: e8 c0 0d 00 00 b8 ff ff ff ff 65 0f c1 05 b3 87 59 76 83 f8 01 75 40 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 <75> 46 41 f7 c5 00 02 00 00 74 01 fb 65 48 8b 04 25 28 00 00 00 48
RSP: 0018:ffffc90000dd0c38 EFLAGS: 00000046
RAX: 0000000000000001 RBX: ffff8880770b5940 RCX: 1e105e76199c6f00
RDX: 0000000000010000 RSI: ffffffff8a0b28c0 RDI: ffffffff8a59a240
RBP: 0000000000000001 R08: 0000000000000004 R09: 0000000000000003
R10: fffff520001ba180 R11: 1ffff920001ba180 R12: 0000000000000002
R13: 0000000000000046 R14: ffff88801f546b00 R15: ffff8880770b6480
FS:  000055556644b500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f706a096bac CR3: 000000005ca7d000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 lock_is_held include/linux/lockdep.h:287 [inline]
 advance_sched+0x141/0x940 net/sched/sch_taprio.c:721
 __run_hrtimer kernel/time/hrtimer.c:1690 [inline]
 __hrtimer_run_queues+0x53d/0xc40 kernel/time/hrtimer.c:1754
 hrtimer_interrupt+0x3bb/0x8d0 kernel/time/hrtimer.c:1816
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
 __sysvec_apic_timer_interrupt+0x137/0x4a0 arch/x86/kernel/apic/apic.c:1114
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0x9b/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:call_rcu+0x6bf/0x930 kernel/rcu/tree.c:3092
Code: 84 24 a1 00 00 00 02 75 5e f7 44 24 58 00 02 00 00 49 bc 00 00 00 00 00 fc ff df 74 01 fb 48 c7 84 24 80 00 00 00 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 66 43 c7 44 25 09 00 00 43 c6 44 25 0b
RSP: 0018:ffffc9000333ed80 EFLAGS: 00000206
RAX: 1e105e76199c6f00 RBX: ffff888058f2d000 RCX: 1e105e76199c6f00
RDX: dffffc0000000000 RSI: ffffffff8a0b1620 RDI: ffffffff8a59a240
RBP: ffffc9000333eeb8 R08: dffffc0000000000 R09: fffffbfff1ff7620
R10: fffffbfff1ff7620 R11: 1ffffffff1ff761f R12: dffffc0000000000
R13: 1ffff92000667dc0 R14: 1ffff1101722764c R15: 0000000000000121
 tnode_free net/ipv4/fib_trie.c:495 [inline]
 replace+0x237/0x5c0 net/ipv4/fib_trie.c:521
 inflate net/ipv4/fib_trie.c:623 [inline]
 resize+0x1019/0x26e0 net/ipv4/fib_trie.c:868
 trie_rebalance net/ipv4/fib_trie.c:1101 [inline]
 fib_insert_node net/ipv4/fib_trie.c:1145 [inline]
 fib_insert_alias+0xabe/0x1210 net/ipv4/fib_trie.c:1159
 fib_table_insert+0x67d/0x1b20 net/ipv4/fib_trie.c:1353
 fib_magic+0x2c1/0x390 net/ipv4/fib_frontend.c:1106
 fib_add_ifaddr+0x140/0x5e0 net/ipv4/fib_frontend.c:1128
 fib_inetaddr_event+0x13c/0x1c0 net/ipv4/fib_frontend.c:1442
 notifier_call_chain kernel/notifier.c:83 [inline]
 blocking_notifier_call_chain+0x103/0x1b0 kernel/notifier.c:318
 __inet_insert_ifa+0x9e9/0xbc0 net/ipv4/devinet.c:568
 inet_rtm_newaddr+0x940/0x1800 net/ipv4/devinet.c:967
 rtnetlink_rcv_msg+0x9b9/0xe60 net/core/rtnetlink.c:5650
 netlink_rcv_skb+0x1e0/0x430 net/netlink/af_netlink.c:2507
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x774/0x920 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x8ab/0xbc0 net/netlink/af_netlink.c:1918
 sock_sendmsg_nosec net/socket.c:704 [inline]
 __sock_sendmsg net/socket.c:716 [inline]
 __sys_sendto+0x423/0x580 net/socket.c:2063
 __do_sys_sendto net/socket.c:2075 [inline]
 __se_sys_sendto net/socket.c:2071 [inline]
 __x64_sys_sendto+0xda/0xf0 net/socket.c:2071
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fe26a35e6dc
Code: 2a 5a 02 00 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 70 5a 02 00 48 8b
RSP: 002b:00007ffcb9218ce0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fe26b050620 RCX: 00007fe26a35e6dc
RDX: 0000000000000028 RSI: 00007fe26b050670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffcb9218d34 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007fe26b050670 R15: 0000000000000000
 </TASK>