Fwd: fs/exec.c core dumping on NFS mounted directory

[Lei Sun]

  In 2.6.3x, I am logging in as a root and running app from NFS
mounted directory. The app crashed with 0 bytes core file (I have set
"ulimit -c unlimited", so it's not an issue).

Proposed patch:

--- exec.c 2010-05-19 17:33:16.000000000 -0700
+++ exec.c.new 2010-05-19 17:33:07.000000000 -0700
@@ -1859,7 +1859,7 @@
     * Dont allow local users get cute and trick others to coredump
     * into their pre-created files:
     */
- if (inode->i_uid != current_fsuid())
+ if (inode->i_bytes != 0 && inode->i_uid != current_fsuid())
        goto close_fail;

    if (!file->f_op)


P.S. CC to my email, i am not on the list.

Thanks
lei
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/