What’s Vulnerable › Vulnerabilities

CVE-2025-68766: irqchip/mchp-eic: Fix error code in mchp_eic_domain_alloc()

• Severity: unknown
• 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: 2026-01-05 · updated 2026-10-14

Description

In the Linux kernel, the following vulnerability has been resolved: irqchip/mchp-eic: Fix error code in mchp_eic_domain_alloc() If irq_domain_translate_twocell() sets "hwirq" to >= MCHP_EIC_NIRQ (2) then it results in an out of bounds access. The code checks for invalid values, but doesn't set the error code. Return -EINVAL in that case, instead of returning success.

Affected products

• Linux kernel: 5.16 — fixed in 6.19

How to fix

Upgrade to a fixed version: Linux kernel 6.19. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/09efe7cfbf919c4d763bc425473fcfee0dc98356
• https://git.kernel.org/stable/c/324c60a67c4b9668497940f667db14d216cc7b1b
• https://git.kernel.org/stable/c/3873afcb57614c1aaa5b6715554d6d1c22cac95a
• https://git.kernel.org/stable/c/7dbc0d40d8347bd9de55c904f59ea44bcc8dedb7
• https://git.kernel.org/stable/c/c21c606ad398eeb86a0f3aaff9ba4f2665e286c6
• https://git.kernel.org/stable/c/efd65e2e2fd96f7aaa5cb07d79bbbfcfc80aa552

Get alerted when CVE-2025-68766 or the next vulnerability affects your stack