Linux kernel will refuse to load kernel module, if the linux version magic is not match.
goto kernel/module.c file in kernel folder.
check for 'check_modinfo' function .
comment return -ENOEXEC this line in below function for same_magic() check.
static int check_modinfo(struct module *mod, struct load_info *info)
{
const char *modmagic = get_modinfo(info, "vermagic");
int err;
/* This is allowed: modprobe --force will invalidate it. */
if (!modmagic) {
err = try_to_force_load(mod, "bad vermagic");
if (err)
return err;
} else if (!same_magic(modmagic, vermagic, info->index.vers)) {
printk(KERN_ERR "%s: version magic '%s' should be '%s'\n",
mod->name, modmagic, vermagic);
return -ENOEXEC; }
if (get_modinfo(info, "staging")) {
add_taint_module(mod, TAINT_CRAP);
printk(KERN_WARNING "%s: module is from the staging directory,"
" the quality is unknown, you have been warned.\n",
mod->name);
}
/* Set up license info based on the info section */
set_license(mod, get_modinfo(info, "license"));
return 0;
}
No comments:
Post a Comment