From 3a3f1e573a105328a2cca45a7cfbebabbf5e3192 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 8 Jun 2023 11:23:40 +0300 Subject: modpost: fix off by one in is_executable_section() 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 Signed-off-by: Masahiro Yamada --- scripts/mod/modpost.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'scripts/mod/modpost.c') diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 3ea5eb2b1029..8decf04633bc 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -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; -- cgit