rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5811/7:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=34797, q=2123 ncpus=2)
task:syz-executor    state:R  running task     stack:21632 pid:5811  tgid:5811  ppid:5810   task_flags:0x400100 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5387 [inline]
 __schedule+0x169e/0x54f0 kernel/sched/core.c:7188
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7512
 irqentry_exit_to_kernel_mode_preempt+0x14/0x70 include/linux/irq-entry-common.h:476
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:547 [inline]
 irqentry_exit+0x14f/0x680 kernel/entry/common.c:164
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:_compound_head include/linux/page-flags.h:247 [inline]
RIP: 0010:page_slab mm/slab.h:134 [inline]
RIP: 0010:virt_to_slab mm/slab.h:168 [inline]
RIP: 0010:kmem_cache_free+0x45/0x6c0 mm/slub.c:6357
Code: 05 40 38 53 10 48 89 44 24 20 4c 8b 35 24 57 6c 0b 48 89 f7 e8 ac 02 56 ff 48 c1 e8 06 48 83 e0 c0 49 8d 0c 06 49 8b 44 06 08 <89> c2 83 e2 01 48 ff ca 48 09 c2 48 21 ca 0f b6 42 33 c1 e0 18 45
RSP: 0018:ffffc90004286c18 EFLAGS: 00000202
RAX: ffff88801e6e0780 RBX: ffff88801e6e0780 RCX: ffffea0001f9c740
RDX: 0000000000000000 RSI: ffff88807e71d780 RDI: ffff88807e71d780
RBP: 1ffff1100fce3afe R08: ffff8880386a0000 R09: 0000000000000002
R10: 0000000000000100 R11: 0000000000000001 R12: ffff88807e71d780
R13: ffff88807e71d780 R14: ffffea0000000000 R15: ffff88807e71d858
 packet_rcv+0x175/0x1730 net/packet/af_packet.c:2224
 dev_queue_xmit_nit+0xa39/0xad0 net/core/dev.c:2606
 xmit_one net/core/dev.c:3884 [inline]
 dev_hard_start_xmit+0x1b3/0x860 net/core/dev.c:3904
 sch_direct_xmit+0x251/0x4c0 net/sched/sch_generic.c:372
 __dev_xmit_skb net/core/dev.c:4209 [inline]
 __dev_queue_xmit+0x171e/0x3900 net/core/dev.c:4831
 dev_queue_xmit include/linux/netdevice.h:3401 [inline]
 neigh_hh_output include/net/neighbour.h:540 [inline]
 neigh_output include/net/neighbour.h:554 [inline]
 ip_finish_output2+0xcab/0x10b0 net/ipv4/ip_output.c:237
 NF_HOOK_COND include/linux/netfilter.h:307 [inline]
 ip_output+0x29f/0x450 net/ipv4/ip_output.c:438
 __ip_queue_xmit+0x116a/0x1bb0 net/ipv4/ip_output.c:534
 __tcp_transmit_skb+0x2d62/0x4810 net/ipv4/tcp_output.c:1713
 tcp_transmit_skb net/ipv4/tcp_output.c:1731 [inline]
 tcp_write_xmit+0x1bdf/0x6430 net/ipv4/tcp_output.c:3058
 __tcp_push_pending_frames+0x97/0x380 net/ipv4/tcp_output.c:3241
 tcp_sendmsg_locked+0x470e/0x5370 net/ipv4/tcp.c:1418
 tcp_sendmsg+0x2f/0x50 net/ipv4/tcp.c:1455
 sock_sendmsg_nosec net/socket.c:787 [inline]
 __sock_sendmsg net/socket.c:802 [inline]
 sock_write_iter+0x40c/0x4f0 net/socket.c:1254
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x629/0xba0 fs/read_write.c:688
 ksys_write+0x156/0x270 fs/read_write.c:740
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9e4e3f7997
RSP: 002b:00007ffcc8e55980 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000055558a645540 RCX: 00007f9e4e3f7997
RDX: 0000000000000030 RSI: 000055558a6741c0 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000030