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[Bug binutils/27797] New: [size] attempting double-free on bfd/mach-o.c:


From: dkcjd2000 at gmail dot com
Subject: [Bug binutils/27797] New: [size] attempting double-free on bfd/mach-o.c:5978
Date: Thu, 29 Apr 2021 15:47:48 +0000

https://sourceware.org/bugzilla/show_bug.cgi?id=27797

            Bug ID: 27797
           Summary: [size] attempting double-free on bfd/mach-o.c:5978
           Product: binutils
           Version: 2.37 (HEAD)
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: dkcjd2000 at gmail dot com
  Target Milestone: ---

Hello,
I report a double free detected by address sanitizer.
I found this test input by fuzz testing.

The stack traces are as follows:


You can reproduce the bug by executing
./readelf -a <test input>

I tested the subject on the latest version uploaded on git,
build with --disable-shared --disable-gdb --disable-libdecnumber --disable-ld
--enable-targets=all
configure options.

Thanks

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