From: David Marchand <david.marchand@redhat.com>
To: Olivier Matz <olivier.matz@6wind.com>
Cc: dev <dev@dpdk.org>,
Lavanya Govindarajan <lavanyax.govindarajan@intel.com>,
Reshma Pattan <reshma.pattan@intel.com>,
dpdk stable <stable@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH] test/mbuf: fix access to freed memory
Date: Wed, 3 Nov 2021 16:00:26 +0100 [thread overview]
Message-ID: <CAJFAV8xYgqmqpCDg+PA0+ad+sKtepZ_A7u221omSaBo8tiRnhA@mail.gmail.com> (raw)
In-Reply-To: <20211029121544.13298-1-olivier.matz@6wind.com>
On Fri, Oct 29, 2021 at 2:16 PM Olivier Matz <olivier.matz@6wind.com> wrote:
>
> Seen by ASan.
>
> In the external buffer mbuf test, we check that the buffer is freed
> by checking that its refcount is 0. This is not a valid condition,
> because it accesses to an already freed area.
>
> Fix this by setting a boolean flag in the callback when rte_free()
> is actually called, and check this flag instead.
>
> Bugzilla ID: 867
> Fixes: 7b295dceea07 ("test/mbuf: add unit test cases")
> Cc: stable@dpdk.org
>
> Reported-by: David Marchand <david.marchand@redhat.com>
> Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
--
David Marchand
next prev parent reply other threads:[~2021-11-03 15:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-29 12:15 Olivier Matz
2021-11-03 15:00 ` David Marchand [this message]
2021-11-04 10:09 ` David Marchand
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