CVE-2022-50623

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

fpga: prevent integer overflow in dfl_feature_ioctl_set_irq()

The "hdr.count * sizeof(s32)" multiplication can overflow on 32 bit systems leading to memory corruption. Use array_size() to fix that.

This vulnerability does not affect Red Hat Enterprise Linux because the vulnerable code is not present in supported kernel releases. Additionally, the arithmetic overflow condition is restricted to 32-bit architectures, whereas supported enterprise environments run exclusively on 64-bit kernels. Exploitation would also require local access and interaction with specialized FPGA Device Feature List hardware interfaces.