Dear developers, I have found 3 undefined behaviors in readelf. If you build binutils-2.25 with ubsan (require gcc-4.9 or clang-3.3) and execute command: readelf -a test_file (test files are in the attachment).
You will see 3 runtime errors: readelf.c:1543:39: runtime error: negation of -9223372036854775808 cannot be represented in type 'bfd_signed_vma' (aka 'long'); cast to an unsigned type to negate this value to itself readelf.c:1555:36: runtime error: negation of -9223372036854775808 cannot be represented in type 'bfd_signed_vma' (aka 'long'); cast to an unsigned type to negate this value to itself readelf.c:8374:39: runtime error: signed integer overflow: 8521 - -9223372036854775112 cannot be represented in type 'long' Can you please take a look? -- Dingbao Xie
ubs.tar.gz
Description: GNU Zip compressed data
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