[Bug binutils/19005] New: objcopy buffer-over-read

[ams at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=19005

            Bug ID: 19005
           Summary: objcopy buffer-over-read
           Product: binutils
           Version: 2.26 (HEAD)
            Status: NEW
          Severity: normal
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: ams at sourceware dot org
  Target Milestone: ---

objcopy exhibits intermittent failures when creating binary files from ELF
files (the typical error message is "No space left on device"). Even though
failure is intermittent, valgrind shows an error every time.

This is caused by objcopy trying to write more data than it has in the input,
and happens when padding causes the output section to be larger than the input
section.

The problem appears to have been introduced by the fix for pr81656.

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