iommu/riscv: Remove overflows on the invalidation path

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Summary

CVECVE-2026-53312
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-26 20:17:24 UTC
Updated2026-06-30 14:44:27 UTC
DescriptionIn 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 <

Risk And Classification

EPSS: 0.001540000 probability, percentile 0.049690000 (date 2026-07-03)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 488ffbf181718b9ad8c1838cb249d60973e78eda 9f0632b0d4246675fa221aa1a3bffadf9c6bd9ac git Not specified
CNA Linux Linux affected 488ffbf181718b9ad8c1838cb249d60973e78eda e4b7687784153481de45fd39fb97ba3919605c0c git Not specified
CNA Linux Linux affected 488ffbf181718b9ad8c1838cb249d60973e78eda 40a13b49957937427bc23e78eb50679df4396a47 git Not specified
CNA Linux Linux affected 6.13 Not specified
CNA Linux Linux unaffected 6.13 semver Not specified
CNA Linux Linux unaffected 6.18.33 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.10 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/9f0632b0d4246675fa221aa1a3bffadf9c6bd9ac 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e4b7687784153481de45fd39fb97ba3919605c0c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/40a13b49957937427bc23e78eb50679df4396a47 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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