c - Warning: Suspicious pointer-to-pointer conversion (area too small) with lint -

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long keyintvalue; uint8_t *value;   *(long *)value = keyintvalue;

i suspicious pointer-to-pointer conversion (area small) while linting. me understand why , how rid of it?

you casting "pointer uint8_t" (uint8_t *) long *. uint8_t 1 byte (assuming 8 bits) available, assgnment long * overflow following bytes (a long has @ least 32 bits = 4 bytes) not belong object pointed to, creating undefined behaviour (ub).

note shown, value undefined @ time of assignment, exhibiting ub.


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