[lwip-devel] [bug #36645] Calling dhcp_release before dhcp_start dereferences NULL

[Simon Goldschmidt]

Update of bug #36645 (project lwip):

                  Status:                    None => Fixed                  
             Assigned to:                    None => goldsimon              
             Open/Closed:                    Open => Closed                 
         Planned Release:                         => 1.5.0                  

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Follow-up Comment #2:

Since dhcp_restart() is part of the "public API" of that module, I very
strongly suggest to not fail hard in such a case. If anything, we can add an
assertion there.

For now, I've just added a NULL-check at the start of the function.

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  <http://savannah.nongnu.org/bugs/?36645>

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