public-mirrors/linux
1
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-09-18 22:14:16 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

modpost: fix off by one in is_executable_section()

Browse source 
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
Show stats Download patch file Download diff file Expand all files Collapse all files

2
scripts/mod/modpost.c
View file

@ -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;