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Vulnerability · Published Feb 27, 2025 · Assigned by Linux

CVE-2025-21724iommufd/iova_bitmap: Fix shift-out-of-bounds in iova_bitmap_offset_to_index()

High 7.8

In plain English

A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.8High
Exploit odds (30 days)0.2%top 91.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: iommufd/iova_bitmap: Fix shift-out-of-bounds in iova_bitmap_offset_to_index() Resolve a UBSAN shift-out-of-bounds issue in iova_bitmap_offset_to_index() where shifting the constant "1" (of type int) by bitmap->mapped.pgshift (an unsigned long value) could result in undefined behavior. The constant "1" defaults to a 32-bit "int", and when "pgshift" exceeds 31 (e.g., pgshift = 63) the shift operation overflows, as the result cannot be represented in a 32-bit type. To resolve this, the constant is updated to "1UL", promoting it to an unsigned long type to match the operand's type.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.129-1DEBIAN-CVE-2025-21724
Debian:13linux6.12.13-1DEBIAN-CVE-2025-21724
Debian:14linux6.12.13-1DEBIAN-CVE-2025-21724
Ubuntu:24.04:LTSlinux6.8.0-64.67UBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-aws6.8.0-1032.34UBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1032.34~22.04.1UBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-azure6.8.0-1034.39UBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-azure-6.116.11.0-1015.15~24.04.1UBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1034.39~22.04.1UBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-azure-nvidia6.8.0-1022.23UBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-gcp6.8.0-1033.35UBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-gcp-6.116.11.0-1015.15~24.04.1UBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1033.35~22.04.1UBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-gke6.8.0-1028.32UBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1015.17UBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-hwe-6.116.11.0-26.26~24.04.1UBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-64.67~22.04.1UBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-ibm6.8.0-1029.29UBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1029.29~22.04.1UBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-64.67.1UBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.116.11.0-1014.15~24.04.1UBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-64.67.1~22.04.1UBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1031.34UBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-nvidia-6.116.11.0-1010.10UBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1031.34~22.04.1UBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1031.34.1UBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1008.8UBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-oem-6.116.11.0-1022.22UBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1031.31UBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-oracle6.8.0-1029.30UBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1029.30~22.04.1UBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-raspi6.8.0-1031.35UBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-64.67~22.04.1UBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-21724
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-21724
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1017.18UBUNTU-CVE-2025-21724

Affected products (as reported)

VendorProductVersions
Linux Linux 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 – before 44d9c94b7a3f29a3e07c4753603a35e9b28842a358ccf0190d19d9a8a41f8a02b9e06742b58df4a1 – before 38ac76fc06bc6826a3e4b12a98efbe98432380a958ccf0190d19d9a8a41f8a02b9e06742b58df4a1 – before d5d33f01b86af44b23eea61ee309e4ef22c0cdfe58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 – before b1f8453b8ff1ab79a03820ef608256c499769cb658ccf0190d19d9a8a41f8a02b9e06742b58df4a1 – before e24c1551059268b37f6f40639883eafb281b8b9c
Linux Linux 6.1

References