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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3b0b323cd3csm5753094a91.3.2026.11.05.18.36.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 05 Nov 2026 18:36:46 -0800 (PST) Message-ID: Date: Fri, 6 Nov 2026 10:36:42 +0800 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] wifi: ath11k: Reject short management RX frames To: Jiale Yao , Jeff Johnson , Venkateswara Naralasetty , Govindaraj Saminathan , Shashidhar Lakkavalli , Ganesh Sesetti , Manikanta Pubbisetty , linux-wireless@vger.kernel.org, ath11k@lists.infradead.org, linux-kernel@vger.kernel.org References: <20260926114037.3231795-1-yaojiale02@163.com> From: Baochen Qiang Content-Language: en-US In-Reply-To: <20260926114037.3231795-1-yaojiale02@163.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMTA2MDAxMCBTYWx0ZWRfX73HcLqJgRlhN r7n3mibx971nzufcmNjeIQf2CsVcIEaZtPQM3GnvSlGPmiKuUAqnAtk/pcXsgYE93fbZEKuCx+d 4T+MuxRdNw0ndrN/k482253BErOqlJo1Gwr3rUtWY1XXTDkSkybhrZHCbYOuZGKDyS/CUCTXKcW HKoPUGoswBPSJmGW3/K9kxd9tDyh1psuEzpgXoCjM6ptXZMdg7GA5kr3xB8qU91GPPgTot6Blj+ 5IUamix/C7n/MbvjMqjzSE2wHzpV8E7qFNcBMIC9nxBb1HunvXyC7ZZJd8nraxBl6lkA/PB6NhX W834lzQ+4gWr6xXj/I7JFfIJDnwCMphmerBeJgHkcSGkyQnXI9UCqQLv8b+jCH25yHwV+lM8826 Mv3MMGvKoyuy6FlHw5UYyBLf42xBHcvRVsmz99pK6LuAamAvhGX0O/2G88i9x50CxHt4Avj5K51 2CyNKPr9td/ZkR9Txeg== X-Proofpoint-Spam-Info: AW1haW4tMjYxMTA2MDAxMCBTYWx0ZWRfX9K/jbDBUhPum +KyCoAaxjtxHqXyxAUdXSkeAQPHofDH73Btd1jF9Ifs+5BXr7VAy//foImEbi6hbuZydppRepG+ YRj0FpCRY2h9JAGeIUQztw8Q7wwFxQ8= X-Proofpoint-ORIG-GUID: jnohTUjauloricYFOeQB_jpKqFNgTrfA X-Authority-Analysis: v=2.4 cv=GpzXaU1C c=1 sm=1 tr=0 ts=6aed3d40 cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=zJRp6_cAMcgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=Byx-y9mGAAAA:8 a=EUspDBNiAAAA:8 a=nvCuiLfjozt6xqLnoboA:9 a=QEXdDO2ut3YA:10 a=ZXulRonScM0A:10 a=mQ_c8vxmzFEMiUWkPHU9:22 X-Proofpoint-GUID: jnohTUjauloricYFOeQB_jpKqFNgTrfA X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.138,FMLib:17.12.100.49 definitions=2026-11-05_06,2026-11-04_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 lowpriorityscore=0 suspectscore=0 adultscore=0 malwarescore=0 priorityscore=1501 phishscore=0 bulkscore=0 clxscore=1015 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2611040001 definitions=main-2611060010 On 9/26/2026 7:40 PM, Jiale Yao wrote: > ath11k_pull_mgmt_rx_params_tlv() verifies that the firmware-reported frame > length fits in the WMI event, but does not ensure that it can hold an IEEE > 802.11 management header. It then sets skb->len to that reported length. > > ath11k_mgmt_rx_event() subsequently reads frame_control and other header > fields without another length check. A firmware event with a short buf_len > can therefore cause an out-of-bounds read. > > Reject frames shorter than a three-address IEEE 802.11 header before > adjusting the skb to expose the frame. > > Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices") > Signed-off-by: Jiale Yao Reviewed-by: Baochen Qiang