CVE-2026-53057 iommu/riscv: Add IOTINVAL after updating DDT/PDT entries
Missing TLB invalidation in RISC-V IOMMU driver could lead to stale cache entries, potentially causing undefined behavior or security issues.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-53057?
CVE-2026-53057 is a high-severity vulnerability in Linux kernel, published on 24 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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).
Which versions are affected by CVE-2026-53057?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-53057?
Apply the vendor's patch.
Is CVE-2026-53057 being exploited?
There is no known exploitation of CVE-2026-53057 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-53057, DEBIAN-CVE-2026-53057, GHSA-fjm2-575q-p7vq, UBUNTU-CVE-2026-53057.