rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (1 GPs behind) idle=53ac/1/0x4000000000000000 softirq=36679/36680 fqs=5
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P9745/1:b..l
rcu: 	(detected by 1, t=10505 jiffies, g=32749, q=910 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 10064 Comm: syz.0.849 Not tainted 6.13.0-rc5-syzkaller-00004-gccb98ccef0e5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:get_current arch/x86/include/asm/current.h:49 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x70 kernel/kcov.c:216
Code: 8b 3d d4 9f 8d 0c 48 89 de 5b e9 33 6c 58 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0c 25 80 d4 03 00 65 8b 15 e0 60 64 7e 81 e2 00 01 ff 00
RSP: 0018:ffffc90000007d00 EFLAGS: 00000002
RAX: ffffffff818d0729 RBX: 0000000000000010 RCX: ffff8880647a5a00
RDX: ffff8880647a5a00 RSI: 0000000000000010 RDI: 0000000000000000
RBP: ffff8880b862c8cc R08: ffffffff818d071b R09: 1ffffffff2030a7e
R10: dffffc0000000000 R11: fffffbfff2030a7f R12: dffffc0000000000
R13: ffff8880b862c980 R14: ffff88805dfb9340 R15: 1ffff110170c5930
FS:  00007f0c50e296c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f31aff8 CR3: 0000000031bb4000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 enqueue_hrtimer+0x119/0x3c0 kernel/time/hrtimer.c:1077
 __run_hrtimer kernel/time/hrtimer.c:1756 [inline]
 __hrtimer_run_queues+0x6cb/0xd30 kernel/time/hrtimer.c:1803
 hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1865
 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:queue_work_on+0x269/0x380 kernel/workqueue.c:2395
Code: 75 19 e8 ca fb 37 00 eb 18 e8 c3 fb 37 00 e8 ee 52 59 0a 48 83 7c 24 10 00 74 e7 e8 b1 fb 37 00 fb 48 c7 44 24 20 0e 36 e0 45 <4b> c7 04 37 00 00 00 00 43 c7 44 37 09 00 00 00 00 66 43 c7 44 37
RSP: 0018:ffffc9000bd57940 EFLAGS: 00000287
RAX: ffffffff816777df RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc900050e9000 RSI: 00000000000000f9 RDI: 00000000000000fa
RBP: ffffc9000bd57a28 R08: ffffffff816777af R09: 1ffffffff284e336
R10: dffffc0000000000 R11: fffffbfff284e337 R12: 001fffffffc00001
R13: 0000000000000046 R14: 1ffff920017aaf2c R15: dffffc0000000000
 queue_work include/linux/workqueue.h:662 [inline]
 vsock_loopback_send_pkt+0xce/0x100 net/vmw_vsock/vsock_loopback.c:35
 virtio_transport_send_pkt_info+0x81d/0x10b0 net/vmw_vsock/virtio_transport_common.c:411
 virtio_transport_connect+0xd9/0x140 net/vmw_vsock/virtio_transport_common.c:1063
 vsock_connect+0xbe0/0xe30 net/vmw_vsock/af_vsock.c:1500
 __sys_connect_file net/socket.c:2055 [inline]
 __sys_connect+0x288/0x2d0 net/socket.c:2074
 __do_sys_connect net/socket.c:2080 [inline]
 __se_sys_connect net/socket.c:2077 [inline]
 __x64_sys_connect+0x7a/0x90 net/socket.c:2077
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0c4ff85d29
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:00007f0c50e29038 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00007f0c50175fa0 RCX: 00007f0c4ff85d29
RDX: 0000000000000010 RSI: 0000000020000080 RDI: 0000000000000008
RBP: 00007f0c50001b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0c50175fa0 R15: 00007ffcc94264e8
 </TASK>
task:syz-executor    state:R  running task     stack:19600 pid:9745  tgid:9745  ppid:9722   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6935
 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6959
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
 vprintk_emit+0x84c/0xa10 kernel/printk/printk.c:2433
 _printk+0xd5/0x120 kernel/printk/printk.c:2457
 batadv_check_known_mac_addr+0x2b1/0x410 net/batman-adv/hard-interface.c:526
 batadv_hard_if_event+0x3a5/0x1810 net/batman-adv/hard-interface.c:998
 notifier_call_chain+0x1a5/0x3f0 kernel/notifier.c:85
 call_netdevice_notifiers_extack net/core/dev.c:2034 [inline]
 call_netdevice_notifiers net/core/dev.c:2048 [inline]
 dev_set_mac_address+0x3d9/0x510 net/core/dev.c:9212
 dev_set_mac_address_user+0x31/0x50 net/core/dev.c:9226
 do_setlink+0x74b/0x4210 net/core/rtnetlink.c:3064
 rtnl_changelink net/core/rtnetlink.c:3723 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3875 [inline]
 rtnl_newlink+0x1bb6/0x2210 net/core/rtnetlink.c:4012
 rtnetlink_rcv_msg+0x791/0xcf0 net/core/rtnetlink.c:6922
 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2542
 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline]
 netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1347
 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1891
 sock_sendmsg_nosec net/socket.c:711 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:726
 __sys_sendto+0x363/0x4c0 net/socket.c:2197
 __do_sys_sendto net/socket.c:2204 [inline]
 __se_sys_sendto net/socket.c:2200 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2200
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd600f87bbc
RSP: 002b:00007fffca3aebd0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fd601ca4620 RCX: 00007fd600f87bbc
RDX: 000000000000002c RSI: 00007fd601ca4670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007fffca3aec24 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007fd601ca4670 R15: 0000000000000000
 </TASK>
rcu: rcu_preempt kthread starved for 10480 jiffies! g32749 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:25904 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6848
 schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 10073 Comm: syz.2.850 Not tainted 6.13.0-rc5-syzkaller-00004-gccb98ccef0e5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline]
RIP: 0010:smp_call_function_many_cond+0x19f3/0x2c60 kernel/smp.c:884
Code: 45 8b 65 00 44 89 e6 83 e6 01 31 ff e8 56 e9 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 01 e5 0b 00 eb 38 f3 90 <42> 0f b6 04 23 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 e5 e4
RSP: 0018:ffffc9000b7bf940 EFLAGS: 00000293
RAX: ffffffff81938eab RBX: 1ffff110170c8c65 RCX: ffff88807d673c00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000b7bfb40 R08: ffffffff81938e7a R09: 1ffffffff284e310
R10: dffffc0000000000 R11: fffffbfff284e311 R12: dffffc0000000000
R13: ffff8880b8646328 R14: ffff8880b873f940 R15: 0000000000000000
FS:  00007f3d6a9796c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020008100 CR3: 000000002949c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1051
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:2114 [inline]
 text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2324
 text_poke_flush arch/x86/kernel/alternative.c:2515 [inline]
 text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2522
 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
 static_key_slow_inc_cpuslocked+0x80/0xf0 kernel/jump_label.c:168
 static_key_slow_inc+0x1a/0x30 kernel/jump_label.c:191
 kvm_create_vm virt/kvm/kvm_main.c:1205 [inline]
 kvm_dev_ioctl_create_vm virt/kvm/kvm_main.c:5353 [inline]
 kvm_dev_ioctl+0x1855/0x2460 virt/kvm/kvm_main.c:5395
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3d69b85d29
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:00007f3d6a979038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f3d69d75fa0 RCX: 00007f3d69b85d29
RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000004
RBP: 00007f3d69c01b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f3d69d75fa0 R15: 00007fff13906ae8
 </TASK>