From: Jakub Kicinski <kuba@kernel.org>
To: Ashutosh Desai <ashutoshdesai993@gmail.com>
Cc: netdev@vger.kernel.org, Eric Dumazet <edumazet@google.com>,
davem@davemloft.net, pabeni@redhat.com, horms@kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] nfc: hci: fix OOB heap read on short HCP frames
Date: Sun, 12 Apr 2026 13:42:18 -0700 [thread overview]
Message-ID: <20260412134218.34cbe88d@kernel.org> (raw)
In-Reply-To: <20260409150825.2217133-1-ashutoshdesai993@gmail.com>
On Thu, 9 Apr 2026 15:08:25 +0000 Ashutosh Desai wrote:
> Suggested-by: Eric Dumazet <edumazet@google.com>
As Eric mentioned elsewhere - he did not suggest any of this,
merely reviewed your submission.
> +++ b/net/nfc/hci/core.c
> @@ -134,6 +134,10 @@ static void nfc_hci_msg_rx_work(struct work_struct *work)
> u8 instruction;
>
> while ((skb = skb_dequeue(&hdev->msg_rx_queue)) != NULL) {
> + if (!pskb_may_pull(skb, NFC_HCI_HCP_HEADER_LEN)) {
> + kfree_skb(skb);
> + continue;
How did a broken packet get enqueued in the first place?
next prev parent reply other threads:[~2026-04-12 20:42 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAKapqNnOF6BO2zE0MwNeM2_Hchp_d-qDQffywCg7Bk-pMcFKpw@mail.gmail.com>
2026-04-09 7:14 ` [PATCH] nfc: hci: fix OOB heap read on short HCP frames Eric Dumazet
2026-04-09 15:08 ` [PATCH v2] " Ashutosh Desai
2026-04-12 20:42 ` Jakub Kicinski [this message]
2026-04-13 0:06 ` Ashutosh Desai
2026-04-13 2:43 ` [PATCH v3] nfc: hci: fix out-of-bounds read in HCP header parsing Ashutosh Desai
2026-04-13 17:55 ` Jakub Kicinski
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