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Vulnerability · Published Sep 16, 2026 · Assigned by Linux

CVE-2026-89840f2fs: validate MOVE_RANGE destination size

High 7.1

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 6% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.1High
Exploit odds (30 days)0.2%top 94.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: f2fs: validate MOVE_RANGE destination size F2FS_IOC_MOVE_RANGE checks the source range, but not the destination end before updating i_size. A source hole can expose this: __clone_blkaddrs() skips NULL_ADDR entries and returns success, so the caller can still extend the destination inode with unchecked pos_out + len. Reject destination overflow and use inode_newsize_ok() before extending the destination inode.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2026-89840
Debian:13linux6.12.113-1DEBIAN-CVE-2026-89840
Debian:14linux7.2.6-1DEBIAN-CVE-2026-89840
Debian:12linux-6.126.12.113-1~deb12u1DEBIAN-CVE-2026-89840
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-89840
Ubuntu:26.04:LTSlinux7.0.0-42.42UBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-89840
Ubuntu:26.04:LTSlinux-aws7.0.0-1016.17UBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-89840
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-89840
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-89840
Ubuntu:26.04:LTSlinux-gcp7.0.0-1016.18UBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-89840
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-hwe-7.07.0.0-42.42~24.04.1UBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-89840
Ubuntu:26.04:LTSlinux-ibm7.0.0-1017.17UBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-89840
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-89840
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1038.42UBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-89840
Ubuntu:26.04:LTSlinux-oem-7.07.0.0-1017.17UBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-89840
Ubuntu:26.04:LTSlinux-oracle7.0.0-1015.16UBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-89840
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-89840
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-89840
Ubuntu:26.04:LTSlinux-riscv7.0.0-42.42.1UBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-riscv-7.07.0.0-42.42.1~24.04.1UBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-89840
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-89840
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-89840

Affected products (as reported)

VendorProductVersions
Linux Linux 4dd6f977fc778e5a0da604e5f8cb2f36d163d27b – before 454de20a5a36c000b75f49337aae8c92045c52424dd6f977fc778e5a0da604e5f8cb2f36d163d27b – before 54c587f3f95ce2d6932a16566db83f73cc4313e14dd6f977fc778e5a0da604e5f8cb2f36d163d27b – before bca61ee5192ea47003722486ae9588a2a4bb47b64dd6f977fc778e5a0da604e5f8cb2f36d163d27b – before db13064669526494cd78ba3a4394063b740e940c4dd6f977fc778e5a0da604e5f8cb2f36d163d27b – before dcae1eeda53149f219dd6af93b3083b7271c1c634dd6f977fc778e5a0da604e5f8cb2f36d163d27b – before e533889fc26aea0cd83c90327063f272061dd820
Linux Linux 4.8

References