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fix(websocket): Prevent crash on network disconnect during send

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When WiFi disconnects, `esp_websocket_client_task` continues polling
`esp_transport_poll_read()` with a default 1-second timeout.
If a timeout triggers `esp_websocket_client_abort_connection`,
certain resources are released.
However, if `esp_websocket_client_send_with_exact_opcode`
is still blocked at this point, it will cause a crash
when it times out and accesses the released handle.
This fix prevents potential crashes by ensuring proper
synchronization between abort and send functions.

Merges: https://github.com/espressif/esp-protocols/pull/629
This commit is contained in:
xutao
2024-08-14 14:59:26 +08:00
committed by David Cermak
parent 72f4f7c7a3
commit a453ca1f38
1 changed files with 2 additions and 0 deletions
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components/esp_websocket_client/esp_websocket_client.c
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@ -1083,7 +1083,9 @@ static void esp_websocket_client_task(void *pv)
} else {
esp_websocket_client_error(client, "esp_transport_poll_read() returned %d, errno=%d", read_select, errno);
}
xSemaphoreTakeRecursive(client->lock, lock_timeout);
esp_websocket_client_abort_connection(client, WEBSOCKET_ERROR_TYPE_TCP_TRANSPORT);
xSemaphoreGiveRecursive(client->lock);
}
} else if (WEBSOCKET_STATE_WAIT_TIMEOUT == client->state) {
// waiting for reconnecting...