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modpost: fix off by one in is_executable_section()

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

Fixes: 52dc0595d5 ("modpost: handle relocations mismatch in __ex_table.")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Dan Carpenter
2023-06-08 11:23:40 +03:00
committed by Masahiro Yamada
parent 98d7c7544a
commit 3a3f1e573a
1 changed files with 1 additions and 1 deletions
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scripts/mod/modpost.c
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@@ -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) 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 false;
return (elf->sechdrs[secndx].sh_flags & SHF_EXECINSTR) != 0; return (elf->sechdrs[secndx].sh_flags & SHF_EXECINSTR) != 0;