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Magne Sjaastad
d339a34910
ecl_kw_fread_alloc() returns NULL if a keyword cannot be read, e.g. when the backing file is truncated or corrupt. ecl_file_kw_load_kw() then called ecl_file_kw_assert_kw() unconditionally, which dereferenced the NULL keyword and caused a SIGSEGV. Guard the assert and inv-map registration so they only run when the read succeeded. The NULL keyword is propagated to the calling scope, which already handles a missing keyword gracefully.