ovl: allow zero size xattr
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@szeredi.hu> Cc: <stable@vger.kernel.org>
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@ -54,7 +54,7 @@ int ovl_copy_xattr(struct dentry *old, struct dentry *new)
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for (name = buf; name < (buf + list_size); name += strlen(name) + 1) {
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for (name = buf; name < (buf + list_size); name += strlen(name) + 1) {
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size = vfs_getxattr(old, name, value, XATTR_SIZE_MAX);
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size = vfs_getxattr(old, name, value, XATTR_SIZE_MAX);
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if (size <= 0) {
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if (size < 0) {
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error = size;
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error = size;
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goto out_free_value;
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goto out_free_value;
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}
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}
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