thodg/libgit2/tests/patch

Diff

  • Show log

    Commit

  • Hash : 37141ff7
    Author : Patrick Steinhardt
    Date : 2019-10-21T18:56:59 

    patch_parse: detect overflow when calculating old/new line position

When the patch contains lines close to INT_MAX, then it may happen that
we end up with an integer overflow when calculating the line of the
current diff hunk. Reject such patches as unreasonable to avoid the
integer overflow.

As the calculation is performed on integers, we introduce two new
helpers `git__add_int_overflow` and `git__sub_int_overflow` that perform
the integer overflow check in a generic way.

kmx.io     mail     discord kmxgit v0.4.0