What’s Vulnerable › Vulnerabilities

CVE-2026-53057: iommu/riscv: Add IOTINVAL after updating DDT/PDT entries

• Severity: high (CVSS 8.8 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: 2026-06-24 · updated 2026-07-21

Description

In the Linux kernel, the following vulnerability has been resolved: iommu/riscv: Add IOTINVAL after updating DDT/PDT entries Add riscv_iommu_iodir_iotinval() to perform required TLB and context cache invalidations after updating DDT or PDT entries, as mandated by the RISC-V IOMMU specification (Section 6.3.1 and 6.3.2).

Affected products

• Linux kernel: from 6.13 before 6.18.33; from 6.19 before 7.0.10 — fixed in 6.18.33, 7.0.10

How to fix

Upgrade to a fixed version: Linux kernel 6.18.33, 7.0.10. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3f917d9bff68600f77561900f3145bd4706dc840
• https://git.kernel.org/stable/c/d99d1c13faa793ff1abab0d20ab6473c838081b3
• https://git.kernel.org/stable/c/f5c262b544975e067ea265fc7403aefbbea8563e

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