diff options
| author | Jiri Kosina <jkosina@suse.cz> | 2015-02-15 10:03:20 +0100 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2015-02-16 16:26:56 +0100 |
| commit | e0b561ee78d82a4cc7792aa28fa4b1ea15325dcc (patch) | |
| tree | e11dc662c90bc42ee17d358f0f79eb914dfbb119 | |
| parent | 1d9c5d79e6e4385aea6f69c23ba543717434ed70 (diff) | |
| download | linux-e0b561ee78d82a4cc7792aa28fa4b1ea15325dcc.tar.bz2 | |
livepatch: fix format string in kobject_init_and_add()
kobject_init_and_add() takes expects format string for a name, so we
better provide it in order to avoid infoleaks if modules craft their
mod->name in a special way.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Reported-by: Kees Cook <keescook@chromium.org>
Acked-by: Seth Jennings <sjenning@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| -rw-r--r-- | kernel/livepatch/core.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c index ff7f47d026ac..69bf3aa3bde8 100644 --- a/kernel/livepatch/core.c +++ b/kernel/livepatch/core.c @@ -731,7 +731,7 @@ static int klp_init_func(struct klp_object *obj, struct klp_func *func) func->state = KLP_DISABLED; return kobject_init_and_add(&func->kobj, &klp_ktype_func, - obj->kobj, func->old_name); + obj->kobj, "%s", func->old_name); } /* parts of the initialization that is done only when the object is loaded */ @@ -807,7 +807,7 @@ static int klp_init_patch(struct klp_patch *patch) patch->state = KLP_DISABLED; ret = kobject_init_and_add(&patch->kobj, &klp_ktype_patch, - klp_root_kobj, patch->mod->name); + klp_root_kobj, "%s", patch->mod->name); if (ret) goto unlock; |