commit c46f739dd39db3b07ab5deb4e3ec81e1c04a91af
Author: Ingo Molnar <mingo@elte.hu>
Date:   Wed Nov 28 13:59:18 2007 +0100

    vfs: coredumping fix
    
    fix: http://bugzilla.kernel.org/show_bug.cgi?id=3043
    
    only allow coredumping to the same uid that the coredumping
    task runs under.
    
    Signed-off-by: Ingo Molnar <mingo@elte.hu>
    Acked-by: Alan Cox <alan@redhat.com>
    Acked-by: Christoph Hellwig <hch@lst.de>
    Acked-by: Al Viro <viro@ftp.linux.org.uk>
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Index: pardus-2.6/fs/exec.c
===================================================================
--- pardus-2.6.orig/fs/exec.c
+++ pardus-2.6/fs/exec.c
@@ -1524,6 +1524,12 @@ int do_coredump(long signr, int exit_cod
 
 	if (!S_ISREG(inode->i_mode))
 		goto close_fail;
+	/*
+	 * Dont allow local users get cute and trick others to coredump
+	 * into their pre-created files:
+	 */
+	if (inode->i_uid != current->fsuid)
+		goto close_fail;
 	if (!file->f_op)
 		goto close_fail;
 	if (!file->f_op->write)