In the Linux kernel, the following vulnerability has been resolved: iommu/riscv: Remove overflows on the invalidation path Since RISC-V supports a sign extended page table it should support a gather->end of ULONG_MAX, but if this happens it will infinite loop because of the overflow. Also avoid overflow computing the length by moving the +1 to the other side of the <

A flaw was found in the Linux kernel's IOMMU (Input/Output Memory Management Unit) component for RISC-V architectures. An integer overflow in the invalidation path can lead to an infinite loop. This vulnerability could allow a local attacker to cause a Denial of Service (DoS) by triggering the overflow condition.

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-2026-53312 https://nvd.nist.gov/vuln/detail/CVE-2026-53312 https://lore.kernel.org/linux-cve-announce/2026062621-CVE-2026-53312-9784@gregkh/T