layer2_tx: Fixed stack-use-after-return
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725a0ffd21
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041255e15f
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@ -59,13 +59,20 @@ result_t layer2_tx_fill_packet_queue(layer2_tx_t *ctx)
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// a packet is available -> move it to the queue
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header.tx_seq_nr = ctx->next_seq_nr;
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uint8_t packetbuf[2048];
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uint8_t *packetbuf = malloc(2048);
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if(!packetbuf) {
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LOG(LVL_ERR, "malloc failed.");
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return ERR_NO_MEM;
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}
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ret = read(ctx->tun_fd, packetbuf, sizeof(packetbuf));
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if(ret < 0) {
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LOG(LVL_ERR, "read: %s", strerror(errno));
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free(packetbuf);
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return ERR_SYSCALL;
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} else if(ret == 0) {
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// no more data
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free(packetbuf);
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break;
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}
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