What’s Vulnerable › Vulnerabilities

CVE-2022-50623: fpga: prevent integer overflow in dfl_feature_ioctl_set_irq()

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-08 · updated 2026-08-04

Description

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.

Affected products

• Linux kernel: 5.9 — fixed in 6.1

How to fix

Upgrade to a fixed version: Linux kernel 6.1. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1b5a931594f7ffd26d706614c37d4da0f2ffb6e7
• https://git.kernel.org/stable/c/939bc5453b8cbdde9f1e5110ce8309aedb1b501a
• https://git.kernel.org/stable/c/940253af8b3865b76de8d1b46bcd4a700104852e
• https://git.kernel.org/stable/c/b94605f5cb99e90c8ca91523597a40e1bd59546b
• https://git.kernel.org/stable/c/f59861946fa51bcc1f305809e4ebc1013b0ee61c

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