[lwip-devel] [bug #50040] pbuf_alloc(..., 65534, PBUF_RAM) succedes

[Simon Goldschmidt]

Follow-up Comment #3, bug #50040 (project lwip):

I don't want to justify these bugs, but lwIP was tranditionally meant for
small platforms, some of them not even having 64KByte of memory. In that case,
small structures *do* count, so having mem_size_t being u16_t does make
sense.

The tradition of such small systems (plus the age of lwIP being started in the
early 2000ths) explains why noone has bothered checking for overflow here :-(

Obviously, pbuf_alloc() should check overflow but as David said, there may be
(and are) more places to check...

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