CVE-2022-50830

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> auxdisplay: hd44780: Fix potential memory leak in hd44780_remove()<br /> <br /> hd44780_probe() allocates a memory chunk for hd with kzalloc() and<br /> makes "lcd-&gt;drvdata-&gt;hd44780" point to it. When we call hd44780_remove(),<br /> we should release all relevant memory and resource. But "lcd-&gt;drvdata<br /> -&gt;hd44780" is not released, which will lead to a memory leak.<br /> <br /> We should release the "lcd-&gt;drvdata-&gt;hd44780" in hd44780_remove() to fix<br /> the memory leak bug.