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From: Thomas Monjalon <thomas.monjalon@6wind.com>
To: "Carew, Alan" <alan.carew@intel.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH] librte_eal: FreeBSD contigmem prevent possible	buffer overrun during module unload.
Date: Mon, 20 Oct 2014 23:48:01 +0200
Message-ID: <3008758.TcMj3bSWGZ@xps13> (raw)
In-Reply-To: <E115CCD9D858EF4F90C690B0DCB4D8972262CA4C@IRSMSX108.ger.corp.intel.com>

> > The maximum mount contiguous memory regions for FreeBSD is limited by
> > RTE_CONTIGMEM_MAX_NUM_BUFS, a pointer to each region is stored in
> > static void * contigmem_buffers[RTE_CONTIGMEM_MAX_NUM_BUFS]
> > 
> > A user can specify a greater amount via hw.contigmem.num_buffers,
> > while the allocation logic will prevent this allocation from occuring the logic
> > in contigmem_unload() will attempt to free hw.contigmem.num_buffers and
> > an overrun occurs.
> > 
> > This patch limits the freeing to a maximum of
> > 
> > Signed-off-by: Alan Carew <alan.carew@intel.com>
> Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>



      reply	other threads:[~2014-10-20 21:40 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-14 12:18 Alan Carew
2014-10-16 19:32 ` De Lara Guarch, Pablo
2014-10-20 21:48   ` Thomas Monjalon [this message]

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