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From: Thomas Monjalon <thomas@monjalon.net>
To: "Dooley, Brian" <brian.dooley@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
	stable@dpdk.org, "Nicolau, Radu" <radu.nicolau@intel.com>,
	Akhil Goyal <gakhil@marvell.com>,
	"Power, Ciara" <ciara.power@intel.com>
Subject: Re: [PATCH] examples/ipsec-secgw: fix partial overflow
Date: Wed, 22 Nov 2023 17:37:47 +0100	[thread overview]
Message-ID: <2090975.KlZ2vcFHjT@thomas> (raw)
In-Reply-To: <SN7PR11MB763993AF1D0FB06051186E48E6B1A@SN7PR11MB7639.namprd11.prod.outlook.com>

> > Case of partial overflow detected with ASan. Added extra padding to cdev_key
> > structure.
> > 
> > This structure is used for the key in hash table.
> > Padding is added to force the struct to use 8 bytes, to ensure memory is
> > notread past this structs boundary (the hash key calculation reads 8 bytes if
> > this struct is size 5 bytes).
> > The padding should be zeroed.
> > If fields are modified in this struct, the padding must be updated to ensure
> > multiple of 8 bytes size overall.
> > 
> > Fixes: d299106e8e31 ("examples/ipsec-secgw: add IPsec sample application")
> > Cc: sergio.gonzalez.monroy@intel.com
> > Cc: stable@dpdk.org
> > 
> > Signed-off-by: Brian Dooley <brian.dooley@intel.com>
> 
> Acked-by: Ciara Power <ciara.power@intel.com>

Applied and made the comment simpler with this:

  uint8_t padding[3]; /* padding to 8-byte size should be zeroed */




  reply	other threads:[~2023-11-22 16:37 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-15 12:31 Brian Dooley
2023-11-15 16:24 ` Power, Ciara
2023-11-22 16:37   ` Thomas Monjalon [this message]
2023-11-23 10:48     ` Dooley, Brian

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