From: Olivier Matz <olivier.matz@6wind.com>
To: David Marchand <david.marchand@redhat.com>
Cc: dev@dpdk.org, dkozlyuk@nvidia.com, stable@dpdk.org,
Reshma Pattan <reshma.pattan@intel.com>
Subject: Re: [PATCH] test/mbuf: fix mbuf data content check
Date: Thu, 3 Feb 2022 10:47:21 +0100 [thread overview]
Message-ID: <YfukqQNLoR73D3yz@platinum> (raw)
In-Reply-To: <20220203093912.25032-1-david.marchand@redhat.com>
On Thu, Feb 03, 2022 at 10:39:12AM +0100, David Marchand wrote:
> When allocating a mbuf, its data content is most of the time zero'd but
> nothing ensures this. This is especially wrong when building with
> RTE_MALLOC_DEBUG, where data is poisoned to 0x6b on free.
>
> This test reserves MBUF_TEST_DATA_LEN2 bytes in the mbuf data segment,
> and sets this data to 0xcc.
> Calling strlen(), the test may try to read more than MBUF_TEST_DATA_LEN2
> which has been noticed when memory had been poisoned.
>
> The mbuf data content is checked right after, so we can simply remove
> strlen().
>
> Fixes: 7b295dceea07 ("test/mbuf: add unit test cases")
> Cc: stable@dpdk.org
>
> Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
next prev parent reply other threads:[~2022-02-03 9:47 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-03 9:39 David Marchand
2022-02-03 9:47 ` Olivier Matz [this message]
2022-02-11 7:56 ` David Marchand
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