From: Kalle Valo <kvalo@kernel.org>
To: Dmitry Antipov <dmantipov@yandex.ru>
Cc: Jeff Johnson <jjohnson@kernel.org>,
linux-wireless@vger.kernel.org, lvc-project@linuxtesting.org,
Fedor Pchelkin <pchelkin@ispras.ru>,
ath10k@lists.infradead.org
Subject: Re: [PATCH] wifi: ath10k: add extra output check in ath10k_wmi_event_debug_print()
Date: Fri, 10 Jan 2025 14:28:36 +0200 [thread overview]
Message-ID: <87ed1asvij.fsf@kernel.org> (raw)
In-Reply-To: <20250110115024.1497597-1-dmantipov@yandex.ru> (Dmitry Antipov's message of "Fri, 10 Jan 2025 14:50:24 +0300")
Dmitry Antipov <dmantipov@yandex.ru> writes:
> In 'ath10k_wmi_event_debug_print()', passing skb of the very weird
> layout may produce debug output of the zero length. In such a case,
> 'if (skb->data[i - 1] == '\n')' will trigger an access beyond skb data
> boundaries. So fix this by adding an extra check whether at least one
> byte of the debug output was really emitted. Compile tested only.
>
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
>
> Suggested-by: Fedor Pchelkin <pchelkin@ispras.ru>
> Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Adding ath10k list.
--
https://patchwork.kernel.org/project/linux-wireless/list/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
prev parent reply other threads:[~2025-01-10 12:28 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-10 11:50 [PATCH] wifi: ath10k: add extra output check in ath10k_wmi_event_debug_print() Dmitry Antipov
2025-01-10 12:28 ` Kalle Valo [this message]
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