[PATCH v4 0/3] media: meson: Fix memory leak in error path in

From: Anand Moon <linux.amoon@gmail.com>
To: Neil Armstrong <neil.armstrong@linaro.org>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Kevin Hilman <khilman@baylibre.com>,
	Jerome Brunet <jbrunet@baylibre.com>,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	Hans Verkuil <hverkuil@kernel.org>,
	Maxime Jourdan <mjourdan@baylibre.com>,
	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: Sashiko <sashiko-bot@kernel.org>
Subject: [PATCH v4 0/3] media: meson: Fix memory leak in error path in
Date: Thu, 21 May 2026 13:04:10 +0530	[thread overview]
Message-ID: <20260521073449.10057-1-linux.amoon@gmail.com> (raw)

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 <sashiko-bot@kernel.org>
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