[Mesa-dev] [Bug 74988] New: Buffer overrun (segfault) decompressing ETC2 texture in GLBenchmark 3.0 Manhattan

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=74988

          Priority: medium
            Bug ID: 74988
          Assignee: mesa-dev at lists.freedesktop.org
           Summary: Buffer overrun (segfault) decompressing ETC2 texture
                    in GLBenchmark 3.0 Manhattan
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: courtney at lunarg.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: 10.0
         Component: Mesa core
           Product: Mesa

Saw intermittent segfault running GLBenchmark 3.0's Manhattan test. Narrowed
issue down to writing outside the memory bounds of the texture when
decompressing ETC2 data. Probably the root cause of bug 71002 (which has a nice
repro) as well.

See patch mesa-add-bounds-checking-to-eliminate-buffer-overrun on mesadev for
more details.

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