[Bug 101652] segfault in i965 brw_upload_cache when calling glLinkProgram

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101652

            Bug ID: 101652
           Summary: segfault in i965 brw_upload_cache when calling
                    glLinkProgram
           Product: Mesa
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: intel-3d-bugs at lists.freedesktop.org
          Reporter: rrika9 at yahoo.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org

Created attachment 132362
  --> https://bugs.freedesktop.org/attachment.cgi?id=132362&action=edit
Code to reproduce the crash

I get a segfault when calling glLinkProgram because of a memcpy with dst=0 at

brw_program_cache.c:370: memcpy((char *)cache->bo->virtual + item->offset,
data, data_size);

I attached a sample to trigger this which needs -lgbm -lGL -lEGL.

(My CPU is a Intel i5-3320M, which comes with HD Graphics 4000 according to
wikipedia)

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