Potential Vulnerability in Cloned Code

[tlnguyen-smu]

This PR fixes a potential security vulnerability in kvm_irqfd() that was cloned from https://github.com/torvalds/linux but did not receive the security patch.

Details:

Affected Function: kvm_irqfd() in virt/kvm/eventfd.c Original Fix: https://github.com/torvalds/linux/commit/36ae3c0a36b7456432fedce38ae2f7bd3e01a563

What this PR does:

This PR applies the same security patch that was applied to the original repository to eliminate the potential vulnerability in the cloned code.

References:

• https://github.com/torvalds/linux/commit/36ae3c0a36b7456432fedce38ae2f7bd3e01a563
• https://nvd.nist.gov/vuln/detail/cve-2017-1000252

Please review and merge this PR to ensure your repository is protected against this potential vulnerability.