This is a note to let you know that I've just added the patch titled
iio: core: fix memleak in iio_device_register_sysfs
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
iio-core-fix-memleak-in-iio_device_register_sysfs.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 95a0d596bbd0552a78e13ced43f2be1038883c81 Mon Sep 17 00:00:00 2001
From: Dinghao Liu <dinghao.liu@xxxxxxxxxx>
Date: Fri, 8 Dec 2023 15:31:19 +0800
Subject: iio: core: fix memleak in iio_device_register_sysfs
From: Dinghao Liu <dinghao.liu@xxxxxxxxxx>
commit 95a0d596bbd0552a78e13ced43f2be1038883c81 upstream.
When iio_device_register_sysfs_group() fails, we should
free iio_dev_opaque->chan_attr_group.attrs to prevent
potential memleak.
Fixes: 32f171724e5c ("iio: core: rework iio device group creation")
Signed-off-by: Dinghao Liu <dinghao.liu@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20231208073119.29283-1-dinghao.liu@xxxxxxxxxx
Cc: <Stable@xxxxxxxxxxxxxxx>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/iio/industrialio-core.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -1610,10 +1610,13 @@ static int iio_device_register_sysfs(str
ret = iio_device_register_sysfs_group(indio_dev,
&iio_dev_opaque->chan_attr_group);
if (ret)
- goto error_clear_attrs;
+ goto error_free_chan_attrs;
return 0;
+error_free_chan_attrs:
+ kfree(iio_dev_opaque->chan_attr_group.attrs);
+ iio_dev_opaque->chan_attr_group.attrs = NULL;
error_clear_attrs:
iio_free_chan_devattr_list(&iio_dev_opaque->channel_attr_list);
Patches currently in stable-queue which might be from dinghao.liu@xxxxxxxxxx are
queue-5.15/iio-core-fix-memleak-in-iio_device_register_sysfs.patch
queue-5.15/net-mlx5e-fix-a-potential-double-free-in-fs_any_crea.patch
