This is a note to let you know that I've just added the patch titled
ovl: allow zero size xattr
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ovl-allow-zero-size-xattr.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 97daf8b97ad6f913a34c82515be64dc9ac08d63e Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <miklos@xxxxxxxxxx>
Date: Tue, 10 Nov 2015 17:08:41 +0100
Subject: ovl: allow zero size xattr
From: Miklos Szeredi <miklos@xxxxxxxxxx>
commit 97daf8b97ad6f913a34c82515be64dc9ac08d63e upstream.
When ovl_copy_xattr() encountered a zero size xattr no more xattrs were
copied and the function returned success. This is clearly not the desired
behavior.
Signed-off-by: Miklos Szeredi <miklos@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/overlayfs/copy_up.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/overlayfs/copy_up.c
+++ b/fs/overlayfs/copy_up.c
@@ -54,7 +54,7 @@ int ovl_copy_xattr(struct dentry *old, s
for (name = buf; name < (buf + list_size); name += strlen(name) + 1) {
size = vfs_getxattr(old, name, value, XATTR_SIZE_MAX);
- if (size <= 0) {
+ if (size < 0) {
error = size;
goto out_free_value;
}
Patches currently in stable-queue which might be from miklos@xxxxxxxxxx are
queue-4.4/ovl-allow-zero-size-xattr.patch
queue-4.4/ovl-root-copy-attr.patch
queue-4.4/ovl-check-dentry-positiveness-in-ovl_cleanup_whiteouts.patch
queue-4.4/ovl-setattr-check-permissions-before-copy-up.patch
queue-4.4/ovl-use-a-minimal-buffer-in-ovl_copy_xattr.patch
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