BUG: sleeping function called from invalid context at net/core/sock.c:3839
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 15, name: ksoftirqd/0
preempt_count: 100, expected: 0
RCU nest depth: 1, expected: 0
INFO: lockdep is turned off.
Preemption disabled at:
[<ffffffff81894fab>] softirq_handle_begin kernel/softirq.c:486 [inline]
[<ffffffff81894fab>] handle_softirqs+0xab/0x840 kernel/softirq.c:621
CPU: 0 UID: 0 PID: 15 Comm: ksoftirqd/0 Tainted: G             L     Y syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP, [Y]=FORCED_BIND
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 __might_resched+0x36a/0x4c0 kernel/sched/core.c:9197
 lock_sock_nested+0x56/0x100 net/core/sock.c:3839
 lock_sock include/net/sock.h:1713 [inline]
 x25_kill_by_neigh+0x10d/0x250 net/x25/af_x25.c:1775
 x25_lapb_receive_frame+0x1b0/0xfb0 net/x25/x25_dev.c:138
 __netif_receive_skb_one_core net/core/dev.c:6265 [inline]
 netif_receive_skb_core+0x2a6/0x2b0 net/core/dev.c:6290
 lapbeth_napi_poll+0x42/0x90 drivers/net/wan/lapbether.c:100
 __napi_poll+0xaa/0x330 net/core/dev.c:7798
 napi_poll net/core/dev.c:7861 [inline]
 net_rx_action+0x61d/0xf50 net/core/dev.c:8018
 handle_softirqs+0x223/0x840 kernel/softirq.c:645
 run_ksoftirqd+0x36/0x60 kernel/softirq.c:1099
 smpboot_thread_fn+0x565/0xa70 kernel/smpboot.c:160
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>