Low [CVE-2026-53057] Add IOTINVAL after updating DDT/PDT entries
This low-severity Red Hat Linux advisory covers CVE-2026-53057.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
VulniPulse record published Record updated
Summary
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).
A flaw was found in the Linux kernel, specifically within the Input/Output Memory Management Unit (IOMMU) for RISC-V architectures. This vulnerability occurs because the system does not properly clear out old memory translation information, known as Translation Lookaside Buffer (TLB) and context cache entries, after updating critical memory tables.
An attacker could potentially exploit this oversight to access or alter data incorrectly, leading to data integrity issues or the disclosure of sensitive information. Red Hat severity: Low.
Weakness: CWE-524. Red Hat lists Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9 as not affected.
Is CVE-2026-53057 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-53057 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2026-53057?
The advisory VulniPulse tracks names no fixed release. Follow Red Hat's guidance for workarounds and updates.
Confirm against the vendor advisory before you patch.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.
Official advisory · medium-confidence parse· fetched 14 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists. Confirm against the vendor advisory.
Official advisory · medium-confidence parse· fetched 14 days ago·verify at source
Mitigation
The source record does not include mitigation steps. That does not mean no fix exists. Read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 14 days ago·verify at source
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