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staging: fbtft: Fix buffer overflow vulnerability

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Module copies a user supplied string (module parameter) into a buffer
using strncpy() and does not check that the buffer is null terminated.

Replace call to strncpy() with call to strlcpy() ensuring that the
buffer is null terminated.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tobin C. Harding 2017-02-15 14:27:23 +11:00 • committed by Greg Kroah-Hartman
commit 8414fe11ba
1 changed files with 1 additions and 1 deletions
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drivers/staging/fbtft/fbtft_device.c
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@ -1483,7 +1483,7 @@ static int __init fbtft_device_init(void)
displays[i].pdev->name = name;
displays[i].spi = NULL;
} else {
strncpy(displays[i].spi->modalias, name, SPI_NAME_SIZE);
strlcpy(displays[i].spi->modalias, name, SPI_NAME_SIZE);
displays[i].pdev = NULL;
}
}