crypto: iaa - Fix potential use after free bug

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: crypto: iaa - Fix potential use after free bug The free_device_compression_mode(iaa_device, device_mode) function frees "device_mode" but it iss passed to iaa_compression_modes[i]->free() a few lines later resulting in a use after free. The good news is that, so far as I can tell, nothing implements the ->free() function and the use after free happens in dead code. But, with this fix, when something does implement it, we'll be ready. :)

References

• https://git.kernel.org/stable/c/b5d534b473e2c8d3e4560be2dd6c12a8eb9d61e9
• https://git.kernel.org/stable/c/c66f0be993ba52410edab06124c54ecf143b05c1
• https://git.kernel.org/stable/c/e0d3b845a1b10b7b5abdad7ecc69d45b2aab3209