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[129.46.96.20]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-32678dcedf4sm10043488eec.5.2026.08.17.16.46.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Aug 2026 16:46:35 -0700 (PDT) From: Jeff Johnson Date: Mon, 17 Aug 2026 16:46:34 -0700 Subject: [PATCH ath-next] wifi: ath11k: fix reg_info_store leak in ath11k_service_ready_ext_event() Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260817-reg_info_store-leak-v1-1-77025a99b074@oss.qualcomm.com> X-B4-Tracking: v=1; b=H4sIAFmdg2oC/32NUQqDMBBEryL73ZUkpaL96j2KSDAbXapJm1ixS O7e1AP0Z2B4zJsdIgWmCNdih0ArR/YuF3kqoB+1GwjZ5A5KqErUQmGgoWNnfRcXHwgn0g+U2ta yP1OlGwt5+QxkeTusd9DLiI62BdpMRv7NPsfdKg/+17xKlKiEaRpTm4ux6uZjLF9vPfV+nssc0 KaUvuaKWrvHAAAA X-Change-ID: 20260802-reg_info_store-leak-1af81c3e6a9f To: Jeff Johnson Cc: linux-wireless@vger.kernel.org, ath11k@lists.infradead.org, linux-kernel@vger.kernel.org, Jeff Johnson X-Mailer: b4 0.14.3 X-Proofpoint-GUID: GPVRp5Ag3_q7hpTmr69ockhCFztj6zxT X-Proofpoint-ORIG-GUID: GPVRp5Ag3_q7hpTmr69ockhCFztj6zxT X-Proofpoint-Spam-Info: AW1haW4tMjYwODE3MDE4MiBTYWx0ZWRfX/vH3hBjyfs9B vkDAqGVwltCrEtJqiohSCo0iULgQY7sauJmlaed+lAx+g8DAg4CxGGNSjuF2YgWOS54gPLwA02w oUKO0/Li9WFTrkegmgw1w8ZGfjQAlrg= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODE3MDE4MiBTYWx0ZWRfX/jDZgK2mybOY Hrnhgpkje5i+IsZB0s97Nhhf3dSGAakTKwvB/YIxplbOVACoBpicNMTfCJOrsUGR6zE7Z+X1Bc6 yLDfXXfKESs/GE2Az3FFSXk4WFrGQP2m87FCDP27NUKQFuLZeOEaxsGXIFfE84+/lWo4W1Ce7CO 87drPLo3DaSQqPpKodByfbDd2Y+YtHsbkTgqSBVg7qkg3Tl5K3qMEZwtwbiNrUvPl9mXHV76GuT ULf9sbRTDLZT1tm9rzGFHKg/ZcrYnL0/MFr2Yz9wN6mjfMgW/bHsCbyiZucNeyWJcIAcVSPMS+W oRGGRzFAKuk9n2WHRf81AnQtoSgZuJ39IZKuiQCl7bpE7IUrSLpo9lAtlCTSoI42C+JqGwrL8QR 3EihxTw8lONFE/COBEsyxQ0/QB7Ekg2rQRjFYO+KpxqW6p9BwrQE0Pt1l0ffrXwec2zhfzD7vbs c1CiamH2xUnyWAJrz2A== X-Authority-Analysis: v=2.4 cv=UslT8ewB c=1 sm=1 tr=0 ts=6a839d5d cx=c_pps a=Oh5Dbbf/trHjhBongsHeRQ==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=rJkE3RaqiGZ5pbrm-msn:22 a=EUspDBNiAAAA:8 a=ioZH6r-_hHwHCcFRKkYA:9 a=QEXdDO2ut3YA:10 a=_Vgx9l1VpLgwpw_dHYaR:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-17_04,2026-08-12_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 clxscore=1015 impostorscore=0 suspectscore=0 phishscore=0 bulkscore=0 priorityscore=1501 malwarescore=0 spamscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608170182 Currently, while processing the WMI Service Ready Ext event, the iterator in ath11k_service_ready_ext_event() can dispatch the HAL Regulatory Capabilities handler ath11k_wmi_tlv_ext_soc_hal_reg_caps_parse() which can allocate ab->reg_info_store. If a subsequent failure occurs during iteration, the ab->reg_info_store allocation is leaked. Directly free and clear the pointer on the error path. Note that the normal cleanup function ath11k_reg_free() cannot be used since other regulatory-related fields are not yet populated at this point. Compile tested only. Fixes: 7004bdceef60 ("wifi: ath11k: store cur_regulatory_info for each radi= o") Assisted-by: Claude:claude-sonnet-4-6 Signed-off-by: Jeff Johnson Reviewed-by: Baochen Qiang --- drivers/net/wireless/ath/ath11k/wmi.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/a= th/ath11k/wmi.c index bbca275a8289..08fd6795ed9e 100644 --- a/drivers/net/wireless/ath/ath11k/wmi.c +++ b/drivers/net/wireless/ath/ath11k/wmi.c @@ -5136,6 +5136,15 @@ static int ath11k_service_ready_ext_event(struct ath= 11k_base *ab, =20 err: kfree(svc_rdy_ext.mac_phy_caps); + + /* + * During TLV iteration the WMI_TAG_SOC_HAL_REG_CAPABILITIES + * handler may have allocated ab->reg_info_store, so free it + * on error to avoid a memory leak + */ + kfree(ab->reg_info_store); + ab->reg_info_store =3D NULL; + ath11k_wmi_free_dbring_caps(ab); return ret; } --- base-commit: 8150c22bc80caef4ba8391eb98b25e9f7c6cb487 change-id: 20260802-reg_info_store-leak-1af81c3e6a9f