bus.send() fails with `No buffer space available` despite not reaching the timeout

$ ip -d link show pcan-e
12: pcan-e: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UP mode DEFAULT group default qlen 10
    link/can  promiscuity 0  allmulti 0 minmtu 0 maxmtu 0 
    can state ERROR-ACTIVE restart-ms 0 
          bitrate 1024096 sample-point 0.746
          tq 5 prop-seg 61 phase-seg1 62 phase-seg2 42 sjw 21 brp 1
          gs_usb: tseg1 2..256 tseg2 2..128 sjw 1..128 brp 1..512 brp_inc 1
          clock 170000000 numtxqueues 1 numrxqueues 1 gso_max_size 65536 gso_max_segs 65535 tso_max_size 65536 tso_max_segs 65535 gro_max_size 65536 parentbus usb parentdev 1-7.3:1.0
$ time python tests/cantest.py 
Traceback (most recent call last):
  File "/home/gos/gena-sidl/Integration-Tests/env/lib/python3.12/site-packages/can/interfaces/socketcan/socketcan.py", line 889, in _send_once
    sent = self.socket.send(data)
           ^^^^^^^^^^^^^^^^^^^^^^
OSError: [Errno 105] No buffer space available

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/gos/gena-sidl/Integration-Tests/tests/cantest.py", line 12, in <module>
    bus.send(msg, timeout=1.0)
  File "/home/gos/gena-sidl/Integration-Tests/env/lib/python3.12/site-packages/can/interfaces/socketcan/socketcan.py", line 874, in send
    sent = self._send_once(data, channel)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/gos/gena-sidl/Integration-Tests/env/lib/python3.12/site-packages/can/interfaces/socketcan/socketcan.py", line 891, in _send_once
    raise can.CanOperationError(
can.exceptions.CanOperationError: Failed to transmit: No buffer space available [Error Code 105]
SocketcanBus was not properly shut down

real    0m0.112s
user    0m0.099s
sys     0m0.013s

with the following test script:

#!/usr/bin/env python3

import can

N_PACKETS = 100

bus = can.Bus(interface="socketcan", channel="pcan-e")

data = bytes([0xAB] * 8)
for _ in range(N_PACKETS):
    msg = can.Message(arbitration_id=1, is_extended_id=True, data=data)
    bus.send(msg, timeout=1.0)

bus.shutdown()