From: patchwork-bot+netdevbpf@kernel.org
To: Michael Bommarito <michael.bommarito@gmail.com>
Cc: mani@kernel.org, davem@davemloft.net, edumazet@google.com,
kuba@kernel.org, pabeni@redhat.com, horms@kernel.org,
netdev@vger.kernel.org, linux-arm-msm@vger.kernel.org,
stable@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post()
Date: Sat, 13 Jun 2026 01:50:08 +0000 [thread overview]
Message-ID: <178131540813.1328827.18042311383082528410.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260611125455.2352279-1-michael.bommarito@gmail.com>
Hello:
This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:
On Thu, 11 Jun 2026 08:54:55 -0400 you wrote:
> qrtr_endpoint_post() validates an incoming packet with
>
> if (!size || len != ALIGN(size, 4) + hdrlen)
> goto err;
>
> where size comes from the wire. On 32-bit, size_t is 32 bits and
> ALIGN(size, 4) wraps to 0 for size >= 0xfffffffd, so the check
> passes and skb_put_data(skb, data + hdrlen, size) writes past the
> hdrlen-sized skb and oopses the kernel. 64-bit is unaffected.
>
> [...]
Here is the summary with links:
- net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post()
https://git.kernel.org/netdev/net/c/20054869770c
You are awesome, thank you!
--
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prev parent reply other threads:[~2026-06-13 1:50 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-11 12:54 [PATCH] net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post() Michael Bommarito
2026-06-12 17:12 ` Simon Horman
2026-06-13 1:50 ` patchwork-bot+netdevbpf [this message]
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