From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 22 Sep 2017 23:45:18 +0300
Subject: [PATCH 5/6] ovl: Return -ENOMEM if an allocation fails ovl_lookup()
Git-commit: 0ce5cdc9d79277e55c3d80bf7d2b1adea2752078
Patch-mainline: v4.14-rc7
References: bsc#1096065
The error code is missing here so it means we return ERR_PTR(0) or NULL.
The other error paths all return an error code so this probably should
as well.
Fixes: 02b69b284cd7 ("ovl: lookup redirects")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Acked-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
---
fs/overlayfs/namei.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c
index 31cd805b99a6..644370f7c60a 100644
--- a/fs/overlayfs/namei.c
+++ b/fs/overlayfs/namei.c
@@ -379,6 +379,7 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry,
}
if (d.redirect) {
+ err = -ENOMEM;
upperredirect = kstrdup(d.redirect, GFP_KERNEL);
if (!upperredirect)
goto out_put_upper;
--
2.16.3