From 5b465b045af3a649a89b8a5c5bfdece20ffc0345 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Sat, 17 Sep 2016 02:25:44 -0300 Subject: Linux-libre 4.7.4-gnu --- kernel/cred.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'kernel/cred.c') diff --git a/kernel/cred.c b/kernel/cred.c index 0c0cd8a62..5f264fb57 100644 --- a/kernel/cred.c +++ b/kernel/cred.c @@ -689,6 +689,8 @@ EXPORT_SYMBOL(set_security_override_from_ctx); */ int set_create_files_as(struct cred *new, struct inode *inode) { + if (!uid_valid(inode->i_uid) || !gid_valid(inode->i_gid)) + return -EINVAL; new->fsuid = inode->i_uid; new->fsgid = inode->i_gid; return security_kernel_create_files_as(new, inode); -- cgit v1.2.3-54-g00ecf