rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P23252/1:b..l
rcu: 	(detected by 1, t=10503 jiffies, g=421401, q=48 ncpus=2)
task:syz-executor.5  state:R  running task     stack:25296 pid:23252 ppid:5062   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0xee1/0x59f0 kernel/sched/core.c:6710
 preempt_schedule_irq+0x52/0x90 kernel/sched/core.c:7022
 irqentry_exit+0x35/0x80 kernel/entry/common.c:433
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:batadv_hardif_get_by_netdev+0x13b/0x430 net/batman-adv/hard-interface.c:71
Code: 85 e1 02 00 00 48 8b 1b 48 81 fb e0 96 50 92 0f 84 85 01 00 00 e8 15 1c 8b f7 48 8d 7b 18 48 89 f8 48 c1 e8 03 42 80 3c 20 00 <0f> 85 ac 02 00 00 4c 39 73 18 75 b8 e8 f4 1b 8b f7 4c 8d 6b 20 be
RSP: 0018:ffffc900209871a8 EFLAGS: 00000246
RAX: 1ffff11010d21d03 RBX: ffff88808690e800 RCX: ffffc9000d536000
RDX: 0000000000040000 RSI: ffffffff89faec8b RDI: ffff88808690e818
RBP: ffff888095784000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: dffffc0000000000
R13: 0000000000000001 R14: ffff888095784000 R15: 0000000000000000
 batadv_hard_if_event+0x94/0x1660 net/batman-adv/hard-interface.c:961
 notifier_call_chain+0xb6/0x3b0 kernel/notifier.c:93
 call_netdevice_notifiers_info+0xb9/0x130 net/core/dev.c:1962
 __dev_notify_flags+0x2a6/0x2e0 net/core/dev.c:8583
 rtnl_configure_link+0x1b3/0x260 net/core/rtnetlink.c:3307
 rtnl_newlink_create net/core/rtnetlink.c:3494 [inline]
 __rtnl_newlink+0x11ab/0x1940 net/core/rtnetlink.c:3706
 rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3719
 rtnetlink_rcv_msg+0x439/0xd30 net/core/rtnetlink.c:6445
 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2549
 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
 netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1365
 netlink_sendmsg+0x93c/0xe30 net/netlink/af_netlink.c:1914
 sock_sendmsg_nosec net/socket.c:725 [inline]
 sock_sendmsg+0xd9/0x180 net/socket.c:748
 ____sys_sendmsg+0x6ac/0x940 net/socket.c:2494
 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2548
 __sys_sendmsg+0x117/0x1e0 net/socket.c:2577
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f94c387cae9
RSP: 002b:00007f94c468c0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f94c399bf80 RCX: 00007f94c387cae9
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003
RBP: 00007f94c38c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f94c399bf80 R15: 00007fffddc6a118
 </TASK>
rcu: rcu_preempt kthread starved for 274 jiffies! g421401 f0x0 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:28240 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0xee1/0x59f0 kernel/sched/core.c:6710
 schedule+0xe7/0x1b0 kernel/sched/core.c:6786
 schedule_timeout+0x157/0x2c0 kernel/time/timer.c:2167
 rcu_gp_fqs_loop+0x1ec/0xa50 kernel/rcu/tree.c:1609
 rcu_gp_kthread+0x249/0x380 kernel/rcu/tree.c:1808
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </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: 3270 Comm: bond241 Not tainted 6.5.0-rc7-syzkaller-00092-g786c96e92fb9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Workqueue:  0x0 (bond241)
RIP: 0010:rescuer_thread+0x4a9/0xdd0 kernel/workqueue.c:2848
Code: 00 4c 89 64 24 48 48 89 74 24 68 eb 40 e8 6f 3e 31 00 4c 8b bc 24 d0 00 00 00 49 8d 5f 08 48 89 d8 48 c1 e8 03 42 80 3c 30 00 <0f> 85 e0 06 00 00 49 8b 47 08 45 31 ed 48 83 e8 08 48 39 1c 24 48
RSP: 0018:ffffc90016ed7db8 EFLAGS: 00000046
RAX: 1ffff11010215a12 RBX: ffff8880810ad090 RCX: 0000000000000000
RDX: ffff888035dc0000 RSI: ffffffff8154ca31 RDI: 0000000000000007
RBP: ffff88803f7a9c00 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000004
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff8880810ad088
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f421000 CR3: 0000000023aff000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>