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virtio_console: Use strscpy() to instead of strncpy()
author
Bo Liu
<liubo03@inspur.com>
Wed, 18 Jan 2023 01:29:44 +0000
(20:29 -0500)
committer
Greg Kroah-Hartman
<gregkh@linuxfoundation.org>
Fri, 20 Jan 2023 12:07:54 +0000
(13:07 +0100)
The implementation of strscpy() is more robust and safer.
That's now the recommended way to copy NUL-terminated strings.
Signed-off-by: Bo Liu <liubo03@inspur.com>
Link:
https://lore.kernel.org/r/20230118012944.2436-1-liubo03@inspur.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/char/virtio_console.c
patch
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diff --git
a/drivers/char/virtio_console.c
b/drivers/char/virtio_console.c
index
6a82111
..
d5ac4d9
100644
(file)
--- a/
drivers/char/virtio_console.c
+++ b/
drivers/char/virtio_console.c
@@
-1666,9
+1666,8
@@
static void handle_control_message(struct virtio_device *vdev,
"Not enough space to store port name\n");
break;
}
- strncpy(port->name, buf->buf + buf->offset + sizeof(*cpkt),
- name_size - 1);
- port->name[name_size - 1] = 0;
+ strscpy(port->name, buf->buf + buf->offset + sizeof(*cpkt),
+ name_size);
/*
* Since we only have one sysfs attribute, 'name',