What’s Vulnerable › Vulnerabilities

CVE-2026-72026: irqchip/irq-riscv-imsic-early: Fix fwnode leak on state setup failure

• 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: 2026-08-15 · updated 2026-08-17

Description

In the Linux kernel, the following vulnerability has been resolved: irqchip/irq-riscv-imsic-early: Fix fwnode leak on state setup failure imsic_early_acpi_init() allocates a firmware node before setting up the IMSIC state. If imsic_setup_state() fails, the function returns without freeing the allocated fwnode. Free the fwnode and clear the global pointer on this error path, matching the cleanup already done when imsic_early_probe() fails. [ tglx: Use a common cleanup path instead of copying code around ]

Affected products

• Linux kernel: 6.12 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1358126fbed104e5657955d3ba029b283687ba02
• https://git.kernel.org/stable/c/a27f17bad38c5fea3c73281517869af0089a0451
• https://git.kernel.org/stable/c/a5a367756926de1c21a013ea5ed7fc2219f4cb4f
• https://git.kernel.org/stable/c/b321a046d7717225c07ba3f4b7b0a4758c2f9d58

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