From: Raslan Darawsheh <rasland@nvidia.com>
To: Shani Peretz <shperetz@nvidia.com>, dev@dpdk.org
Cc: stable@dpdk.org, Dariusz Sosnowski <dsosnowski@nvidia.com>,
Viacheslav Ovsiienko <viacheslavo@nvidia.com>,
Bing Zhao <bingz@nvidia.com>, Ori Kam <orika@nvidia.com>,
Suanming Mou <suanmingm@nvidia.com>,
Matan Azrad <matan@nvidia.com>,
Gregory Etelson <getelson@nvidia.com>
Subject: Re: [PATCH] net/mlx5: fix heap-buffer-overflow in sample group match
Date: Tue, 24 Mar 2026 14:26:45 +0200 [thread overview]
Message-ID: <ca399ed0-d6fe-4ba0-8589-1fdb4c76832b@nvidia.com> (raw)
In-Reply-To: <20260315084404.94506-1-shperetz@nvidia.com>
Hi,
On 15/03/2026 10:44 AM, Shani Peretz wrote:
> The cached group match callback compares serialized actions
> using memcmp with the size of the new actions buffer.
> When the new actions serialize to a larger buffer than an existing
> cached entry, memcmp reads past the cached entry's heap allocation,
> causing a heap-buffer-overflow detected by AddressSanitizer.
>
> Add a size comparison before the memcmp so that entries with
> different serialized sizes are rejected as non-matching immediately,
> avoiding the out-of-bounds read.
>
> Fixes: d986f04d6529 ("net/mlx5: add functions for non-template flow sample")
> Cc: stable@dpdk.org
>
> Signed-off-by: Shani Peretz <shperetz@nvidia.com>
> Acked-by: Dariusz Sosnowski <dsosnowski@nvidia.com>
Patch applied to next-net-mlx,
Kindest regards
Raslan Darawsheh
prev parent reply other threads:[~2026-03-24 12:26 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-15 8:44 [PATCH] net/mlx5: fix heap-buffer-overflow in sample group match Shani Peretz
2026-03-24 12:26 ` Raslan Darawsheh [this message]
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