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Mon, 12 Jan 2026 03:09:24 -0800 (PST) X-Google-Smtp-Source: AGHT+IE3DqqiVAGDuMadEVug6aPn1DZj+wCnH5DiJ7gmZozwb6jXrl8SRz3fKLb98e1+Nt+IkrwPtA== X-Received: by 2002:a05:6a00:f92:b0:81f:52d9:5fe with SMTP id d2e1a72fcca58-81f52d90cc0mr3092818b3a.33.1768216164086; Mon, 12 Jan 2026 03:09:24 -0800 (PST) Received: from [192.168.0.171] ([49.205.249.58]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-81e4c0f183bsm8967543b3a.42.2026.01.12.03.09.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 12 Jan 2026 03:09:23 -0800 (PST) Message-ID: Date: Mon, 12 Jan 2026 16:39:18 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 5/6] media: iris: gen2: Add sanity check for session stop To: Dikshita Agarwal , Abhinav Kumar , Bryan O'Donoghue , Mauro Carvalho Chehab , Hans Verkuil , Stefan Schmidt , Hans Verkuil , Wangao Wang Cc: linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Bryan O'Donoghue References: <20251229-iris-fixes-v2-0-6dce2063d782@oss.qualcomm.com> <20251229-iris-fixes-v2-5-6dce2063d782@oss.qualcomm.com> Content-Language: en-US From: Vikash Garodia In-Reply-To: <20251229-iris-fixes-v2-5-6dce2063d782@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=auO/yCZV c=1 sm=1 tr=0 ts=6964d665 cx=c_pps a=Qgeoaf8Lrialg5Z894R3/Q==:117 a=ntuG9qRpOVxPRPblRsQ5Fw==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=ERLT3ukgNE3iqUHOUQAA:9 a=QEXdDO2ut3YA:10 a=x9snwWr2DeNwDh03kgHS:22 X-Proofpoint-GUID: rmedR3oqPojBNOh_1aGNszLRJQJaeMCx X-Proofpoint-ORIG-GUID: rmedR3oqPojBNOh_1aGNszLRJQJaeMCx X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTEyMDA4NyBTYWx0ZWRfX+H2+V9IS9LKx PpbOprUkFCLJMSOh1SwkX5PS8J1U14MNrKayGtofl6nLgB7dModpK0feStNceh1UgMIaHQYBVbo LgOaNVT0sYk5Wu59qeksdev8LArImKhxQ5S0/xe7dMfPRfjS9WNPvn2UnJEdnxzgJ70ibbN4Qvy Q8pgvWPC3iPzHn1ju9YBgQ4sqf42bkLbfTk0J7Grdj5GqnWYidO4QaNbCq21j5+AcJjJTuwbGV7 plQ/gL9mKlrrvm81neZFxHjEyewaDjMs4ydqE6Gf+aYrpsUw0hMSupgTr7xVs8i8G8J+ROjUIpz H/EXRrPuUJwCeDoMHwIvxxDeetgSvYfXK46tWEdBNbkVG0UJbaqPCNtXkyM19yCYDsS2ecoPC77 YuZ0XXeJNikhuXJqZw8V5snbrDU5RBbOLMm8QVEWJrz34bPxszZ/3YCErGhe9fTIyYJE3jsRjx1 fkvskFZAdFeyd0jvbZg== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2026-01-12_03,2026-01-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 impostorscore=0 clxscore=1015 malwarescore=0 adultscore=0 spamscore=0 suspectscore=0 priorityscore=1501 lowpriorityscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2512120000 definitions=main-2601120087 On 12/29/2025 12:01 PM, Dikshita Agarwal wrote: > In iris_kill_session, inst->state is set to IRIS_INST_ERROR and > session_close is executed, which will kfree(inst_hfi_gen2->packet). > If stop_streaming is called afterward, it will cause a crash. > > Add a NULL check for inst_hfi_gen2->packet before sendling STOP packet > to firmware to fix that. > > Fixes: 11712ce70f8e ("media: iris: implement vb2 streaming ops") > Signed-off-by: Dikshita Agarwal > --- > drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c b/drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c > index 6a772db2ec33fb002d8884753a41dc98b3a8439d..59e41adcce9aadd7c60bb1d369d68a4954f62aef 100644 > --- a/drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c > +++ b/drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c > @@ -963,6 +963,9 @@ static int iris_hfi_gen2_session_stop(struct iris_inst *inst, u32 plane) > struct iris_inst_hfi_gen2 *inst_hfi_gen2 = to_iris_inst_hfi_gen2(inst); > int ret = 0; > > + if (!inst_hfi_gen2->packet) > + return -EINVAL; > + > reinit_completion(&inst->completion); > > iris_hfi_gen2_packet_session_command(inst, > Reviewed-by: Vikash Garodia