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authorBrandon Maier <brandon.maier@collins.com>2022-11-02 17:47:55 -0500
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2022-11-07 08:24:42 +0100
commit92d826ac57e753da120a82cded354931b3fe8e76 (patch)
tree200a63e08ed29dc633e0f06247801955ebcdd0b2 /jffsX-utils
parent345c5bde41fc1238a3f3b9b1a52e30ec7ab99b6e (diff)
misc-utils: flashcp: fix buffer overflow
The DIFF_BLOCKS code requires that src and dest buffers be large enough to hold one MTD erasesize. This is because each loop operates on one eraseblock so that it can erase and write one whole sector. But the src and dest buffers are fixed at BUFSIZE, so on platforms where the MTD erasesize are larger then BUFSIZE it will overflow the buffers. Instead allocate the buffers dynamically so that they can be sized to fit the erasesize. Signed-off-by: Brandon Maier <brandon.maier@collins.com> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'jffsX-utils')
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