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Re: [lwip-devel] Calling dhcp_release before dhcp_start dereferences NUL

From: address@hidden
Subject: Re: [lwip-devel] Calling dhcp_release before dhcp_start dereferences NULL
Date: Tue, 12 Jun 2012 19:03:34 +0200
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:12.0) Gecko/20120428 Thunderbird/12.0.1 
Mason wrote:

Calling dhcp_release when dhcp_start has never been called
causes a NULL dereference (because the dhcp struct has never
been allocated).

dhcp_release calls dhcp_set_state(dhcp, DHCP_OFF);
dhcp_state( ) reads dhcp->state.
If dhcp is NULL : bam.


Could you file a bug report to ensure this doesn't get forgotten?

Thanks,
Simon
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