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Commit 6787341a authored by Miklos Szeredi's avatar Miklos Szeredi
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ovl: check snprintf return 



Signed-off-by: default avatarMiklos Szeredi <mszeredi@redhat.com>
parent 520eccdf

fs/overlayfs/inode.c

+3 −0
Original line number Diff line number Diff line
@@ -498,6 +498,9 @@ static int ovl_set_nlink_common(struct dentry *dentry, 
	len = snprintf(buf, sizeof(buf), format,

		       (int) (inode->i_nlink - realinode->i_nlink));



	if (WARN_ON(len >= sizeof(buf)))

		return -EIO;



	return ovl_do_setxattr(ovl_dentry_upper(dentry),

			       OVL_XATTR_NLINK, buf, len, 0);

}