Messages in this thread | | | Date | Sat, 17 Feb 2007 15:29:31 +0300 (MSK) | From | "Mockern" <> | Subject | buffer overflows in the tty flip buffer in 2.6.17 |
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When data is received from the hardware, it needs to be placed into the tty device's flip buffer. This can be done with the following bit of code:
for (i = 0; i < data_size; ++i) { if (tty->flip.count >= TTY_FLIPBUF_SIZE) tty_flip_buffer_push(tty); tty_insert_flip_char(tty, data[i], 0); } tty_flip_buffer_push(tty);
This example makes sure there are no buffer overflows in the tty flip buffer as the data is being added.
But how it is done in 2.6.17 linux kernel? I did check this "overflow code" in new tty driver's code. This code looks like just removed. But somehow overflow in the tty buffer must be kept. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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