Commit 8ea80ca4 authored by Sam Ravnborg's avatar Sam Ravnborg

kbuild: fix segfault in modpost

Do not try to look up section name until we know it is not a special
section. Otherwise we will address outside legal space and segfault.
Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
parent 41370d3b
......@@ -576,11 +576,11 @@ static void check_sec_ref(struct module *mod, const char *modname,
r.r_offset = TO_NATIVE(rela->r_offset);
r.r_info = TO_NATIVE(rela->r_info);
sym = elf->symtab_start + ELF_R_SYM(r.r_info);
secname = secstrings + sechdrs[sym->st_shndx].sh_name;
/* Skip special sections */
if (sym->st_shndx >= SHN_LORESERVE)
continue;
secname = secstrings + sechdrs[sym->st_shndx].sh_name;
if (section(secname))
warn_sec_mismatch(modname, name, elf, sym, r);
}
......
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