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| author | Georgii Rymar <grimar@accesssoftek.com> | 2020-06-03 18:19:05 +0300 |
|---|---|---|
| committer | Georgii Rymar <grimar@accesssoftek.com> | 2020-06-04 12:00:44 +0300 |
| commit | 2ad0ef6ef19dd1678e05b6d219ea0fdd4853bb64 (patch) | |
| tree | a00f779763fc6d152f8aee2c5a4adc7ae86f6d69 /llvm/unittests/Support/VirtualFileSystemTest.cpp | |
| parent | 06cf7adcc88178f887984fa74cdefb20cd8cd124 (diff) | |
| download | llvm-2ad0ef6ef19dd1678e05b6d219ea0fdd4853bb64.zip llvm-2ad0ef6ef19dd1678e05b6d219ea0fdd4853bb64.tar.gz llvm-2ad0ef6ef19dd1678e05b6d219ea0fdd4853bb64.tar.bz2 | |
[llvm-readelf] - Do not try to read past the end of the file when dumping the the SHT_GNU_HASH.
We have unobvious issue in the condition that is used to check
that we do not read past the EOF.
The problem is that the result of "GnuHashTable->nbuckets * 4" expression is uint32.
Because of that it was still possible to overflow it and pass the check.
There was no such problem with the "GnuHashTable->maskwords * sizeof(typename ELFT::Off)"
condition, because of `sizeof` on the right (which gives 64-bits value on x64),
but I've added an explicit conversion to 64-bit value for `GnuHashTable->maskwords` too.
Differential revision: https://reviews.llvm.org/D81103
Diffstat (limited to 'llvm/unittests/Support/VirtualFileSystemTest.cpp')
0 files changed, 0 insertions, 0 deletions