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From: Thomas Monjalon <thomas@monjalon.net>
To: "Parthasarathy, JananeeX M" <jananeex.m.parthasarathy@intel.com>
Cc: stable@dpdk.org, "Dumitrescu, Cristian" <cristian.dumitrescu@intel.com>,
David Marchand <david.marchand@redhat.com>, dev <dev@dpdk.org>, "Pattan,
Reshma" <reshma.pattan@intel.com>, "Singh,
Jasvinder" <jasvinder.singh@intel.com>
Date: Thu, 04 Jul 2019 23:25:32 +0200
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Subject: Re: [dpdk-stable] [PATCH] lib/table: fix table autotest ut crashes
in ipv6
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02/07/2019 13:50, Dumitrescu, Cristian:
> From: David Marchand [mailto:david.marchand@redhat.com]
> On Tue, Jul 2, 2019 at 1:22 PM Jananee Parthasarathy <jananeex.m.parthasarathy@intel.com<mailto:jananeex.m.parthasarathy@intel.com>> wrote:
> Unit test table_autotest results in segmentation fault.
> Crash occurs in test_table_lpm_ipv6_combined().
>
> Variable 'nht_pos0' used as array subscript is not initialized
> in rte_table_lpm_ipv6_entry_add(). It will not be assigned,
> if a rule does not exist.
>
> In such case a junk number or invalid array index might result in
> segmentation fault due to array out of bounds when
> lpm->nht_users is used with such invalid array index.
>
> Fix is to initialize the variables used for array subscript.
>
> Bugzilla ID: 285
>
> Fixes: d89a5bce1d ("lpm6: extend next hop field")
> Cc: stable@dpdk.org<mailto:stable@dpdk.org>
>
> Signed-off-by: Jananee Parthasarathy <jananeex.m.parthasarathy@intel.com<mailto:jananeex.m.parthasarathy@intel.com>>
[...]
> It fixes the segfault I saw, leaving the ack to the maintainer.
> Tested-by: David Marchand <david.marchand@redhat.com<mailto:david.marchand@redhat.com>>
>
> Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
Applied, thanks