From: ZhangZhen <zhenzhang.zhang@huawei.com>
Date: Fri, 4 Apr 2014 01:47:16 +0000 (+0800)
Subject: f2fs: check the acl's validity before setting
X-Git-Tag: v3.15-rc1~62^2~1
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=3a8861e2715e3b985bfaac43bcdfcfebe9b423cb;p=linux-2.6-block.git

f2fs: check the acl's validity before setting

Before setting the acl, call posix_acl_valid() to check if it is
valid or not.

Signed-off-by: zhangzhen <zhenzhang.zhang@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---

diff --git a/fs/f2fs/acl.c b/fs/f2fs/acl.c
index a28571528f24..e93e4ec7d165 100644
--- a/fs/f2fs/acl.c
+++ b/fs/f2fs/acl.c
@@ -203,6 +203,12 @@ static int __f2fs_set_acl(struct inode *inode, int type,
 	size_t size = 0;
 	int error;
 
+	if (acl) {
+		error = posix_acl_valid(acl);
+		if (error < 0)
+			return error;
+	}
+
 	switch (type) {
 	case ACL_TYPE_ACCESS:
 		name_index = F2FS_XATTR_INDEX_POSIX_ACL_ACCESS;