From c65b9145f40da99cad000f81823265dc70e5fcf9 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 13 Nov 2008 13:20:00 +0900 Subject: [PATCH] uevent: don't pass envp_ext[] as format string in kobject_uevent_env() kobject_uevent_env() uses envp_ext[] as verbatim format string which can cause problems ranging from unexpectedly mangled string to oops if a string in envp_ext[] contains substring which can be interpreted as format. Fix it. Signed-off-by: Tejun Heo Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- lib/kobject_uevent.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c index 3f914725bda8..ca215bc2329a 100644 --- a/lib/kobject_uevent.c +++ b/lib/kobject_uevent.c @@ -165,7 +165,7 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action, /* keys passed in from the caller */ if (envp_ext) { for (i = 0; envp_ext[i]; i++) { - retval = add_uevent_var(env, envp_ext[i]); + retval = add_uevent_var(env, "%s", envp_ext[i]); if (retval) goto exit; } -- 2.20.1