Commit 3a3f1e57 authored Jun 08, 2023 by Dan Carpenter Committed by Masahiro Yamada Jun 08, 2023

modpost: fix off by one in is_executable_section()



The > comparison should be >= to prevent an out of bounds array
access.

Fixes: 52dc0595 ("modpost: handle relocations mismatch in __ex_table.")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

parent 98d7c754

scripts/mod/modpost.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1141,7 +1141,7 @@ static Elf_Sym find_tosym(struct elf_info elf, Elf_Addr addr, Elf_Sym *sym)

		static bool is_executable_section(struct elf_info *elf, unsigned int secndx)
		{
		if (secndx > elf->num_sections)
		if (secndx >= elf->num_sections)
		return false;

		return (elf->sechdrs[secndx].sh_flags & SHF_EXECINSTR) != 0;