rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5422/1:b..l
rcu: 	(detected by 1, t=10503 jiffies, g=9973, q=946 ncpus=2)
task:syz-executor.2  state:R  running task     stack:20136 pid:5422  tgid:5422  ppid:5411   flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5376 [inline]
 __schedule+0x19aa/0x4aa0 kernel/sched/core.c:6688
 preempt_schedule_common+0x83/0xc0 kernel/sched/core.c:6865
 preempt_schedule+0xd9/0xe0 kernel/sched/core.c:6889
 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk_64.S:45
 vprintk_emit+0x664/0x720 kernel/printk/printk.c:2304
 _printk+0xd1/0x120 kernel/printk/printk.c:2328
 batadv_check_known_mac_addr+0x2aa/0x400 net/batman-adv/hard-interface.c:526
 batadv_hard_if_event+0x308/0x1550 net/batman-adv/hard-interface.c:998
 notifier_call_chain+0x18c/0x3a0 kernel/notifier.c:93
 call_netdevice_notifiers_extack net/core/dev.c:2005 [inline]
 call_netdevice_notifiers net/core/dev.c:2019 [inline]
 dev_set_mac_address+0x3d0/0x500 net/core/dev.c:8868
 dev_set_mac_address_user+0x2d/0x50 net/core/dev.c:8882
 do_setlink+0x8f0/0x4340 net/core/rtnetlink.c:2864
 __rtnl_newlink net/core/rtnetlink.c:3707 [inline]
 rtnl_newlink+0x17ea/0x2080 net/core/rtnetlink.c:3754
 rtnetlink_rcv_msg+0x87e/0x1020 net/core/rtnetlink.c:6558
 netlink_rcv_skb+0x1db/0x420 net/netlink/af_netlink.c:2545
 netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline]
 netlink_unicast+0x7e2/0x970 net/netlink/af_netlink.c:1368
 netlink_sendmsg+0xa33/0xd70 net/netlink/af_netlink.c:1910
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg net/socket.c:745 [inline]
 __sys_sendto+0x480/0x640 net/socket.c:2190
 __do_sys_sendto net/socket.c:2202 [inline]
 __se_sys_sendto net/socket.c:2198 [inline]
 __x64_sys_sendto+0xda/0xf0 net/socket.c:2198
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7efc0467e8dc
RSP: 002b:00007fff071b5210 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007efc052c4620 RCX: 00007efc0467e8dc
RDX: 000000000000002c RSI: 00007efc052c4670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007fff071b5264 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
R13: 0000000000000000 R14: 00007efc052c4670 R15: 0000000000000000
 </TASK>
rcu: rcu_preempt kthread starved for 10549 jiffies! g9973 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:R  running task     stack:26440 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5376 [inline]
 __schedule+0x19aa/0x4aa0 kernel/sched/core.c:6688
 __schedule_loop kernel/sched/core.c:6763 [inline]
 schedule+0x145/0x250 kernel/sched/core.c:6778
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:2167
 rcu_gp_fqs_loop+0x306/0x14f0 kernel/rcu/tree.c:1631
 rcu_gp_kthread+0xa3/0x3a0 kernel/rcu/tree.c:1830
 kthread+0x2cf/0x360 kernel/kthread.c:388
 ret_from_fork+0x44/0x70 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 5656 Comm: syz-executor.3 Not tainted 6.7.0-rc6-syzkaller-00022-g55cb5f43689d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0033:0x7fceb507a367
Code: 0b e9 68 fe ff ff 48 83 c4 18 48 8d 3d f2 04 c5 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 d3 68 fd ff 0f 1f 00 b8 27 00 00 00 0f 05 <c3> 0f 1f 84 00 00 00 00 00 b8 66 00 00 00 0f 05 c3 0f 1f 84 00 00
RSP: 002b:00007fceb5e3fb08 EFLAGS: 00000202
RAX: 0000000000000003 RBX: 00007fceb5e3fc70 RCX: 00007fceb507a367
RDX: 00007fceb5e3fb40 RSI: 00007fceb5e3fc70 RDI: 0000000000000021
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 000000000000000b R14: 00007fceb519bf80 R15: 00007ffe280227e8
FS:  00007fceb5e406c0 GS:  0000000000000000
sched: RT throttling activated