Luca Boccassi
2e79d397a4
dhcp_option_type_from_code() returns _DHCP_OPTION_TYPE_INVALID (-EINVAL)
for the PAD and END option codes, and dump_dhcp_option_one() uses the
returned value directly as an index into the functions[] table. Those
codes are excluded by an assert() at the top of the function, but
assert() compiles down to __builtin_unreachable() under NDEBUG, so a
negative array index read is reachable there (and trips static
analyzers). Bail out explicitly on the error return.
CID#1660105
Follow-up for 149adb2fdc
System and Service Manager
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