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gcc-toolset-10-binutils/SOURCES/binutils-CVE-2019-1010204.p...

16 lines
626 B

--- binutils.orig/gold/fileread.cc 2019-08-06 14:22:08.669313110 +0100
+++ binutils-2.32/gold/fileread.cc 2019-08-06 14:22:28.799177543 +0100
@@ -381,6 +381,12 @@ File_read::do_read(off_t start, section_
ssize_t bytes;
if (this->whole_file_view_ != NULL)
{
+ // See PR 23765 for an example of a testcase that triggers this error.
+ if (((ssize_t) start) < 0)
+ gold_fatal(_("%s: read failed, starting offset (%#llx) less than zero"),
+ this->filename().c_str(),
+ static_cast<long long>(start));
+
bytes = this->size_ - start;
if (static_cast<section_size_type>(bytes) >= size)
{