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Detect LC_SEGMENT beyond end-of-file in PackMachBase<T>::find_SEGMENT_gap.

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John Reiser
2010-04-28 20:05:23 -07:00
parent e56799c993
commit 99a208110b
1 changed files with 2 additions and 0 deletions
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src/p_mach.cpp
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@@ -861,6 +861,8 @@ unsigned PackMachBase<T>::find_SEGMENT_gap(
} }
unsigned const hi = msegcmd[k].fileoff + msegcmd[k].filesize; unsigned const hi = msegcmd[k].fileoff + msegcmd[k].filesize;
unsigned lo = ph.u_file_size; unsigned lo = ph.u_file_size;
if (lo < hi)
throwCantPack("bad input: LC_SEGMENT beyond end-of-file");
unsigned j = k; unsigned j = k;
for (;;) { // circular search, optimize for adjacent ascending for (;;) { // circular search, optimize for adjacent ascending
++j; ++j;