[llvm-bugs] [Bug 46671] New: lld-link crashes on Windows when linking openssl 1.1.1g static libs

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=46671

            Bug ID: 46671
           Summary: lld-link crashes on Windows when linking openssl
                    1.1.1g static libs
           Product: lld
           Version: unspecified
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: COFF
          Assignee: unassignedbugs at nondot.org
          Reporter: s.jeckel.mxn at gmail.com
                CC: llvm-bugs at lists.llvm.org

Created attachment 23716
  --> https://bugs.llvm.org/attachment.cgi?id=23716&action=edit
Stack trace

This crash happens in our application when linking against a newer version of
openssl 1.1.1g. Unfortunately, I was not able to reproduce it in a minimal
example. It happens with both LLVM 10.x and 9.x.

The cause of the crash is an access violation in
lld::coff::Writer::sortExceptionTable() when dereferencing uint8_t *begin =
bufAddr(firstPdata);
See the attached stack trace for details.
OpenSSL (libcrypto.lib, libssl.lib) was build on Windows with MSVC 2019 with
the default options (perl Configure VC-WIN64A no-shared).

I hope this information is helpful, if not I'm happy to provide additional
details.

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