[Bug 1849] udhcpc oversized packets bug

bugzilla at busybox.net bugzilla at busybox.net
Sun May 30 02:58:29 UTC 2010


https://bugs.busybox.net/show_bug.cgi?id=1849

--- Comment #2 from Evgeniy Manachkin <sfstudio at mail.ru>  ---
(In reply to comment #1)
> There is a guard in networking/udhcp/common.h against that error:

But it does not work.

> Can you attach a hex dump of such bad packet? Including ethernet, ip and udp
> headers.

The problem appears not for me. Trouble with ISP for one of users wive-ng. I
will ask to make a dump. 

The truth it will be difficult as on its device not enough RAM.

P.S. The problem dares the enclosed patch. The patch in OpenWRT migrates from
the version in the version. It means that the problem is not individual and
actual for considerable number of users.

Probably it makes sense to contact developers OpenWRT and they can explain in
more details why the code described to you in networking/udhcp/common.h does
not solve this problem?

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