From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Hans Verkuil <hverkuil-cisco@xs4all.nl>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Sasha Levin <sashal@kernel.org>,
m.szyprowski@samsung.com, linux-samsung-soc@vger.kernel.org,
linux-media@vger.kernel.org
Subject: [PATCH AUTOSEL 5.10 03/14] media: s5p_cec: limit msg.len to CEC_MAX_MSG_SIZE
Date: Tue, 1 Nov 2022 07:29:59 -0400 [thread overview]
Message-ID: <20221101113012.800271-3-sashal@kernel.org> (raw)
In-Reply-To: <20221101113012.800271-1-sashal@kernel.org>
From: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[ Upstream commit 93f65ce036863893c164ca410938e0968964b26c ]
I expect that the hardware will have limited this to 16, but just in
case it hasn't, check for this corner case.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/cec/platform/s5p/s5p_cec.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/media/cec/platform/s5p/s5p_cec.c b/drivers/media/cec/platform/s5p/s5p_cec.c
index 028a09a7531e..102f1af01000 100644
--- a/drivers/media/cec/platform/s5p/s5p_cec.c
+++ b/drivers/media/cec/platform/s5p/s5p_cec.c
@@ -115,6 +115,8 @@ static irqreturn_t s5p_cec_irq_handler(int irq, void *priv)
dev_dbg(cec->dev, "Buffer overrun (worker did not process previous message)\n");
cec->rx = STATE_BUSY;
cec->msg.len = status >> 24;
+ if (cec->msg.len > CEC_MAX_MSG_SIZE)
+ cec->msg.len = CEC_MAX_MSG_SIZE;
cec->msg.rx_status = CEC_RX_STATUS_OK;
s5p_cec_get_rx_buf(cec, cec->msg.len,
cec->msg.msg);
--
2.35.1
next prev parent reply other threads:[~2022-11-01 11:34 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-01 11:29 [PATCH AUTOSEL 5.10 01/14] media: rkisp1: Initialize color space on resizer sink and source pads Sasha Levin
2022-11-01 11:29 ` [PATCH AUTOSEL 5.10 02/14] media: rkisp1: Zero v4l2_subdev_format fields in when validating links Sasha Levin
2022-11-01 11:29 ` Sasha Levin [this message]
2022-11-01 11:30 ` [PATCH AUTOSEL 5.10 04/14] media: cros-ec-cec: limit msg.len to CEC_MAX_MSG_SIZE Sasha Levin
2022-11-01 11:30 ` [PATCH AUTOSEL 5.10 05/14] media: dvb-frontends/drxk: initialize err to 0 Sasha Levin
2022-11-01 11:30 ` [PATCH AUTOSEL 5.10 06/14] media: meson: vdec: fix possible refcount leak in vdec_probe() Sasha Levin
2022-11-01 11:30 ` [PATCH AUTOSEL 5.10 07/14] media: atomisp: Ensure that USERPTR pointers are page aligned Sasha Levin
2022-11-01 11:30 ` [PATCH AUTOSEL 5.10 08/14] media: atomisp: Fix v4l2_fh resource leak on open errors Sasha Levin
2022-11-01 11:30 ` [PATCH AUTOSEL 5.10 09/14] ACPI: APEI: Fix integer overflow in ghes_estatus_pool_init() Sasha Levin
2022-11-01 11:30 ` [PATCH AUTOSEL 5.10 10/14] hwrng: bcm2835 - use hwrng_msleep() instead of cpu_relax() Sasha Levin
2022-11-01 11:30 ` [PATCH AUTOSEL 5.10 11/14] scsi: core: Restrict legal sdev_state transitions via sysfs Sasha Levin
2022-11-01 11:30 ` [PATCH AUTOSEL 5.10 12/14] HID: saitek: add madcatz variant of MMO7 mouse device ID Sasha Levin
2022-11-01 11:30 ` [PATCH AUTOSEL 5.10 13/14] drm/amdgpu: set vm_update_mode=0 as default for Sienna Cichlid in SRIOV case Sasha Levin
2022-11-01 11:30 ` [PATCH AUTOSEL 5.10 14/14] i2c: xiic: Add platform module alias Sasha Levin
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