Hello,

we had analyzed the ebtables-v2.0.9-2 code with Coverity.
Coverity is commercial enterprise level tool for
static analysis (analysis based only on compiling of sources,
not based on running of binary) of the code.

As a result I have the following patches that should fix some possible problems.
There's a respective part(s) of the Coverity error log in each patch.

You could also find this link useful:
https://www.securecoding.cert.org/confluence/display/seccode/Coverity+Prevent

With regards,
Jiri Popelka