thodg/libgit2/tests/delta

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  • Hash : 24597812
    Author : Patrick Steinhardt
    Date : 2018-06-29T09:11:02 

    delta: fix out-of-bounds read of delta

When computing the offset and length of the delta base, we repeatedly
increment the `delta` pointer without checking whether we have advanced
past its end already, which can thus result in an out-of-bounds read.
Fix this by repeatedly checking whether we have reached the end. Add a
test which would cause Valgrind to produce an error.

Reported-by: Riccardo Schirone <rschiron@redhat.com>
Test-provided-by: Riccardo Schirone <rschiron@redhat.com>

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