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Thu, 21 May 2026 00:35:01 -0700 (PDT) Received: from rockpi-5b ([45.112.0.230]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-36a45c5decesm783833a91.1.2026.05.21.00.34.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 May 2026 00:35:00 -0700 (PDT) From: Anand Moon To: Neil Armstrong , Mauro Carvalho Chehab , Greg Kroah-Hartman , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Hans Verkuil , Maxime Jourdan , linux-media@vger.kernel.org (open list:MESON VIDEO DECODER DRIVER FOR AMLOGIC SOCS), linux-amlogic@lists.infradead.org (open list:MESON VIDEO DECODER DRIVER FOR AMLOGIC SOCS), linux-staging@lists.linux.dev (open list:STAGING SUBSYSTEM), linux-arm-kernel@lists.infradead.org (moderated list:ARM/Amlogic Meson SoC support), linux-kernel@vger.kernel.org (open list) Subject: [PATCH v4 0/3] media: meson: Fix memory leak in error path in Date: Thu, 21 May 2026 13:04:10 +0530 Message-ID: <20260521073449.10057-1-linux.amoon@gmail.com> X-Mailer: git-send-email 2.50.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260521_003503_015569_1DE8F665 X-CRM114-Status: GOOD ( 13.15 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sashiko Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Following chamges try to fix the memory leak reported by Sashiko Pre-existing issues: - [Critical] The `sess->esparser_queue_work` work item is not canceled before freeing the session context, leading to a potential Use-After-Free vulnerability. - [High] The patch attempts to fix a memory leak reported by kmemleak, but misdiagnoses the root cause and leaves the primary memory leak (the V4L2 control handler) unresolved. - [High] The driver does not verify if `kthread_run()` returns an `ERR_PTR`, leading to a kernel panic when `kthread_stop()` is called. Reported-by: Sashiko Closes: https://lore.kernel.org/all/20260520045905.6ACBA1F000E9@smtp.kernel.org/#t Thanks -Anand Anand Moon (3): media: meson: vdec: Fix memory leak in error path of vdec_open media: meson: vdec: Add error handling for recycle thread creation media: meson: vdec: Cancel esparser work in error and stop paths drivers/staging/media/meson/vdec/vdec.c | 27 +++++++++++++++++++------ 1 file changed, 21 insertions(+), 6 deletions(-) base-commit: 8bc67e4db64aa72732c474b44ea8622062c903f0 -- 2.50.1 From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f49.google.com (mail-pj1-f49.google.com [209.85.216.49]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2EA2039901A for ; Thu, 21 May 2026 07:35:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.49 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; 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Thu, 21 May 2026 00:35:01 -0700 (PDT) Received: from rockpi-5b ([45.112.0.230]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-36a45c5decesm783833a91.1.2026.05.21.00.34.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 May 2026 00:35:00 -0700 (PDT) From: Anand Moon To: Neil Armstrong , Mauro Carvalho Chehab , Greg Kroah-Hartman , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Hans Verkuil , Maxime Jourdan , linux-media@vger.kernel.org (open list:MESON VIDEO DECODER DRIVER FOR AMLOGIC SOCS), linux-amlogic@lists.infradead.org (open list:MESON VIDEO DECODER DRIVER FOR AMLOGIC SOCS), linux-staging@lists.linux.dev (open list:STAGING SUBSYSTEM), linux-arm-kernel@lists.infradead.org (moderated list:ARM/Amlogic Meson SoC support), linux-kernel@vger.kernel.org (open list) Cc: Anand Moon , Sashiko Subject: [PATCH v4 0/3] media: meson: Fix memory leak in error path in Date: Thu, 21 May 2026 13:04:10 +0530 Message-ID: <20260521073449.10057-1-linux.amoon@gmail.com> X-Mailer: git-send-email 2.50.1 Precedence: bulk X-Mailing-List: linux-staging@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Following chamges try to fix the memory leak reported by Sashiko Pre-existing issues: - [Critical] The `sess->esparser_queue_work` work item is not canceled before freeing the session context, leading to a potential Use-After-Free vulnerability. - [High] The patch attempts to fix a memory leak reported by kmemleak, but misdiagnoses the root cause and leaves the primary memory leak (the V4L2 control handler) unresolved. - [High] The driver does not verify if `kthread_run()` returns an `ERR_PTR`, leading to a kernel panic when `kthread_stop()` is called. Reported-by: Sashiko Closes: https://lore.kernel.org/all/20260520045905.6ACBA1F000E9@smtp.kernel.org/#t Thanks -Anand Anand Moon (3): media: meson: vdec: Fix memory leak in error path of vdec_open media: meson: vdec: Add error handling for recycle thread creation media: meson: vdec: Cancel esparser work in error and stop paths drivers/staging/media/meson/vdec/vdec.c | 27 +++++++++++++++++++------ 1 file changed, 21 insertions(+), 6 deletions(-) base-commit: 8bc67e4db64aa72732c474b44ea8622062c903f0 -- 2.50.1 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C11E6CD343F for ; Thu, 21 May 2026 07:35:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; 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Thu, 21 May 2026 00:35:01 -0700 (PDT) Received: from rockpi-5b ([45.112.0.230]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-36a45c5decesm783833a91.1.2026.05.21.00.34.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 May 2026 00:35:00 -0700 (PDT) From: Anand Moon To: Neil Armstrong , Mauro Carvalho Chehab , Greg Kroah-Hartman , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Hans Verkuil , Maxime Jourdan , linux-media@vger.kernel.org (open list:MESON VIDEO DECODER DRIVER FOR AMLOGIC SOCS), linux-amlogic@lists.infradead.org (open list:MESON VIDEO DECODER DRIVER FOR AMLOGIC SOCS), linux-staging@lists.linux.dev (open list:STAGING SUBSYSTEM), linux-arm-kernel@lists.infradead.org (moderated list:ARM/Amlogic Meson SoC support), linux-kernel@vger.kernel.org (open list) Subject: [PATCH v4 0/3] media: meson: Fix memory leak in error path in Date: Thu, 21 May 2026 13:04:10 +0530 Message-ID: <20260521073449.10057-1-linux.amoon@gmail.com> X-Mailer: git-send-email 2.50.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260521_003503_016908_421E071A X-CRM114-Status: GOOD ( 11.46 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sashiko Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org Following chamges try to fix the memory leak reported by Sashiko Pre-existing issues: - [Critical] The `sess->esparser_queue_work` work item is not canceled before freeing the session context, leading to a potential Use-After-Free vulnerability. - [High] The patch attempts to fix a memory leak reported by kmemleak, but misdiagnoses the root cause and leaves the primary memory leak (the V4L2 control handler) unresolved. - [High] The driver does not verify if `kthread_run()` returns an `ERR_PTR`, leading to a kernel panic when `kthread_stop()` is called. Reported-by: Sashiko Closes: https://lore.kernel.org/all/20260520045905.6ACBA1F000E9@smtp.kernel.org/#t Thanks -Anand Anand Moon (3): media: meson: vdec: Fix memory leak in error path of vdec_open media: meson: vdec: Add error handling for recycle thread creation media: meson: vdec: Cancel esparser work in error and stop paths drivers/staging/media/meson/vdec/vdec.c | 27 +++++++++++++++++++------ 1 file changed, 21 insertions(+), 6 deletions(-) base-commit: 8bc67e4db64aa72732c474b44ea8622062c903f0 -- 2.50.1 _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic