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authorDan Carpenter <dan.carpenter@linaro.org>2023-06-08 11:23:40 +0300
committerMasahiro Yamada <masahiroy@kernel.org>2023-06-08 16:50:04 +0300
commit3a3f1e573a105328a2cca45a7cfbebabbf5e3192 (patch)
treef27e44532e553a8cebac8bb13618bdbb070a122c /scripts
parent98d7c7544a3a9f2713dc0f729bca4ab05fbc6e7f (diff)
downloadlinux-3a3f1e573a105328a2cca45a7cfbebabbf5e3192.tar.xz
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 <dan.carpenter@linaro.org> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Diffstat (limited to 'scripts')
-rw-r--r--scripts/mod/modpost.c2
1 files changed, 1 insertions, 1 deletions
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;