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ext/coverage/coverage.c (rb_coverage_start): Ensure opt is a hash

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Ensure `opt` is a hash before using `rb_hash_lookup` to `opt`.
This will prevent SEGV when an inappropriate object (i.e. an array)
is passed to `opt`.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59915 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
yui-knk 2017-09-15 00:40:38 +00:00
parent 6479a0163a
commit c7fa2bf568
1 changed files with 2 additions and 0 deletions
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2
ext/coverage/coverage.c
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@ -42,6 +42,8 @@ rb_coverage_start(int argc, VALUE *argv, VALUE klass)
}
else {
mode = 0;
opt = rb_convert_type(opt, T_HASH, "Hash", "to_hash");
if (RTEST(rb_hash_lookup(opt, ID2SYM(rb_intern("lines")))))
mode |= COVERAGE_TARGET_LINES;
if (RTEST(rb_hash_lookup(opt, ID2SYM(rb_intern("branches")))))