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Message-ID: <bca41096-0011-4a19-8c31-3273749e92fe@broadcom.com>
Date: Wed, 28 Feb 2024 13:54:43 +0100
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Subject: Re: [PATCH v2] wifi: brcm80211: handle pmk_op allocation failure
To: Duoming Zhou <duoming@zju.edu.cn>, linux-kernel@vger.kernel.org
Cc: brcm80211-dev-list.pdl@broadcom.com, brcm80211@lists.linux.dev,
 linux-wireless@vger.kernel.org, justinstitt@google.com,
 jisoo.jang@yonsei.ac.kr, petr.tesarik.ext@huawei.com,
 quic_alokad@quicinc.com, hdegoede@redhat.com, keescook@chromium.org,
 johannes.berg@intel.com, kvalo@kernel.org
References: <20240228063408.7006-1-duoming@zju.edu.cn>
From: Arend van Spriel <arend.vanspriel@broadcom.com>
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In-Reply-To: <20240228063408.7006-1-duoming@zju.edu.cn>
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On 2/28/2024 7:34 AM, Duoming Zhou wrote:
> The kzalloc() in brcmf_pmksa_v3_op() will return null if the
> physical memory has run out. As a result, if we dereference
> the null value, the null pointer dereference bug will happen.
> 
> Return -ENOMEM from brcmf_pmksa_v3_op() if kzalloc() fails
> for pmk_op.
> 
> Fixes: a96202acaea4 ("wifi: brcmfmac: cfg80211: Add support for PMKID_V3 operations")

Thanks!

Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
> Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
> ---
> Changes in v2:
>    - Drop the new label and just return -ENOMEM.
> 
>   drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 3 +++
>   1 file changed, 3 insertions(+)

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