From 329c5056be8774255db04b01242a9ff4f02eb8ea Mon Sep 17 00:00:00 2001 From: Miao Xie Date: Wed, 13 Apr 2011 14:07:59 +0800 Subject: [PATCH] Btrfs: Check validity before setting an acl Call posix_acl_valid() to check if an acl is valid or not. Signed-off-by: Miao Xie Signed-off-by: Li Zefan --- fs/btrfs/acl.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c index 9c949348510b..a892bc27f13a 100644 --- a/fs/btrfs/acl.c +++ b/fs/btrfs/acl.c @@ -178,16 +178,17 @@ static int btrfs_xattr_acl_set(struct dentry *dentry, const char *name, if (value) { acl = posix_acl_from_xattr(value, size); - if (acl == NULL) { - value = NULL; - size = 0; + if (acl) { + ret = posix_acl_valid(acl); + if (ret) + goto out; } else if (IS_ERR(acl)) { return PTR_ERR(acl); } } ret = btrfs_set_acl(NULL, dentry->d_inode, acl, type); - +out: posix_acl_release(acl); return ret; -- 2.20.1