CVE-2026-53312

Summary

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 <

Affected Software

VendorProductVersion RangeStatus
LinuxLinux488ffbf181718b9ad8c1838cb249d60973e78eda < 9f0632b0d4246675fa221aa1a3bffadf9c6bd9acaffected
LinuxLinux488ffbf181718b9ad8c1838cb249d60973e78eda < e4b7687784153481de45fd39fb97ba3919605c0caffected
LinuxLinux488ffbf181718b9ad8c1838cb249d60973e78eda < 40a13b49957937427bc23e78eb50679df4396a47affected
LinuxLinux6.13affected
LinuxLinux0 < 6.13unaffected
LinuxLinux6.18.33 <= 6.18.*unaffected
LinuxLinux7.0.10 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References