Messages in this thread | | | From | "Rémi Denis-Courmont" <> | Subject | Re: [PATCH] phonet: Check input from user before allocating | Date | Mon, 2 Apr 2012 22:01:40 +0300 |
| |
Le lundi 2 avril 2012 23:31:00 Sasha Levin, vous avez écrit : > A phonet packet is limited to USHRT_MAX bytes, this is never checked during > tx which means that the user can specify any size he wishes, and the kernel > will attempt to allocate that size.
Does this really solve the problem? I guess 128kb is still possible with USHRT_MAX plus skbuff overhead, which might still trigger OOM relatively easily once the memory gets sufficiently fragmented.
How does UDP deal with this?
-- Rémi Denis-Courmont http://www.remlab.net/ http://fi.linkedin.com/in/remidenis -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |