From: Dan Carpenter dan.carpenter@linaro.org
[ Upstream commit 3a3f1e573a105328a2cca45a7cfbebabbf5e3192 ]
The > comparison should be >= to prevent an out of bounds array access.
Fixes: 52dc0595d540 ("modpost: handle relocations mismatch in __ex_table.") Signed-off-by: Dan Carpenter dan.carpenter@linaro.org Signed-off-by: Masahiro Yamada masahiroy@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- scripts/mod/modpost.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 88f4586c35762..9e177b5531127 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -1582,7 +1582,7 @@ static void default_mismatch_handler(const char *modname, struct elf_info *elf,
static int is_executable_section(struct elf_info* elf, unsigned int section_index) { - if (section_index > elf->num_sections) + if (section_index >= elf->num_sections) fatal("section_index is outside elf->num_sections!\n");
return ((elf->sechdrs[section_index].sh_flags & SHF_EXECINSTR) == SHF_EXECINSTR);