diff options
| -rw-r--r-- | kernel/module.c | 28 |
1 files changed, 13 insertions, 15 deletions
diff --git a/kernel/module.c b/kernel/module.c index 29dd232..cabafe2 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -114,7 +114,7 @@ struct load_info { Elf_Ehdr *hdr; unsigned long len; Elf_Shdr *sechdrs; - char *secstrings, *args, *strtab; + char *secstrings, *strtab; unsigned long *strmap; unsigned long symoffs, stroffs; struct { @@ -2096,7 +2096,7 @@ static inline void kmemleak_load_module(const struct module *mod, } #endif -/* Sets info->hdr, info->len and info->args. */ +/* Sets info->hdr and info->len. */ static int copy_and_check(struct load_info *info, const void __user *umod, unsigned long len, const char __user *uargs) @@ -2132,13 +2132,6 @@ static int copy_and_check(struct load_info *info, goto free_hdr; } - /* Now copy in args */ - info->args = strndup_user(uargs, ~0UL >> 1); - if (IS_ERR(info->args)) { - err = PTR_ERR(info->args); - goto free_hdr; - } - info->hdr = hdr; info->len = len; return 0; @@ -2150,7 +2143,6 @@ free_hdr: static void free_copy(struct load_info *info) { - kfree(info->args); vfree(info->hdr); } @@ -2468,7 +2460,7 @@ static struct module *layout_and_allocate(struct load_info *info) err = module_frob_arch_sections(info->hdr, info->sechdrs, info->secstrings, mod); if (err < 0) - goto free_args; + goto out; pcpusec = &info->sechdrs[info->index.pcpu]; if (pcpusec->sh_size) { @@ -2476,7 +2468,7 @@ static struct module *layout_and_allocate(struct load_info *info) err = percpu_modalloc(mod, pcpusec->sh_size, pcpusec->sh_addralign); if (err) - goto free_args; + goto out; pcpusec->sh_flags &= ~(unsigned long)SHF_ALLOC; } @@ -2507,8 +2499,7 @@ free_strmap: kfree(info->strmap); free_percpu: percpu_modfree(mod); -free_args: - kfree(info->args); +out: return ERR_PTR(err); } @@ -2594,7 +2585,12 @@ static noinline struct module *load_module(void __user *umod, flush_module_icache(mod); - mod->args = info.args; + /* Now copy in args */ + mod->args = strndup_user(uargs, ~0UL >> 1); + if (IS_ERR(mod->args)) { + err = PTR_ERR(mod->args); + goto free_arch_cleanup; + } mod->state = MODULE_STATE_COMING; @@ -2648,6 +2644,8 @@ static noinline struct module *load_module(void __user *umod, unlock: mutex_unlock(&module_mutex); synchronize_sched(); + kfree(mod->args); + free_arch_cleanup: module_arch_cleanup(mod); free_modinfo: free_modinfo(mod); |
