CVE-2022-50355

In the Linux kernel, the following vulnerability has been resolved:

staging: vt6655: fix some erroneous memory clean-up loops

In some initialization functions of this driver, memory is allocated with 'i' acting as an index variable and increasing from 0. The commit in "Fixes" introduces some clean-up codes in case of allocation failure, which free memory in reverse order with 'i' decreasing to 0. However, there are some problems:

• The case i=0 is left out. Thus memory is leaked.
• In case memory allocation fails right from the start, the memory freeing loops will start with i=-1 and invalid memory locations will be accessed.

One of these loops has been fixed in commit c8ff91535880 ("staging: vt6655: fix potential memory leak"). Fix the remaining erroneous loops.

Red Hat Enterprise Linux is not affected by this vulnerability because the upstream staging vt6655 wireless driver is not built or shipped in supported kernels. The flaw involves improper memory cleanup during device initialization failure, which could lead to invalid memory access or leaks under specific allocation errors. Because this staging driver is absent from production kernel builds, default deployments carry no operational risk.