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 Enterprise Linux 10 Not affected kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Not affected kernel Red Hat Enterprise Linux 9 Not affected kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-53057 https://nvd.nist.gov/vuln/detail/CVE-2026-53057 https://lore.kernel.org/linux-cve-announce/2026062401-CVE-2026-53057-fa94@gregkh/T