CVE-2025-38688

In the Linux kernel, the following vulnerability has been resolved: iommufd: Prevent ALIGN overflow When allocating IOVA the candidate range gets aligned to the target alignment. If the range is close to ULONGMAX then the ALIGN can wrap resulting in a corrupted iova. Open code the ALIGN using...

CVE-2025-38688 iommufd: Prevent ALIGN() overflow

In the Linux kernel, the following vulnerability has been resolved: iommufd: Prevent ALIGN overflow When allocating IOVA the candidate range gets aligned to the target alignment. If the range is close to ULONGMAX then the ALIGN can wrap resulting in a corrupted iova. Open code the ALIGN using...

CVE-2025-38688

CVE-2025-38688: In the Linux kernel’s iommufd code, ALIGN() overflow could occur while allocating IOVA ranges near ULONG_MAX, risking overlapping mappings or mapping against reserved ranges. The fix uses get_add_overflow() to guard ALIGN() and consolidates the checks under a single helper. Public...

PT-2025-35961

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw in the iommufd subsystem where an integer overflow can occur during IOVA allocation due to an incorrect alignment calculation using the ALIGN function...