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Vulnerability · Published Sep 16, 2026 · Assigned by Linux

CVE-2026-89838f2fs: limit recovery filename logging to stored length

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 94.3% 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: limit recovery filename logging to stored length F2FS stores recovery filenames as a length plus a fixed-size i_name buffer. The buffer is not NUL-terminated, but recover_inode() and recover_dentry() print it with %s. For a 255-byte filename, recovery logging can read past i_name into the following raw inode fields. Print the name with a precision bounded by i_namelen and F2FS_NAME_LEN.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2026-89838
Debian:13linux6.12.113-1DEBIAN-CVE-2026-89838
Debian:14linux7.2.6-1DEBIAN-CVE-2026-89838
Debian:12linux-6.126.12.113-1~deb12u1DEBIAN-CVE-2026-89838
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-89838
Ubuntu:26.04:LTSlinux7.0.0-42.42UBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-89838
Ubuntu:26.04:LTSlinux-aws7.0.0-1016.17UBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-89838
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-89838
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-89838
Ubuntu:26.04:LTSlinux-gcp7.0.0-1016.18UBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-89838
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-hwe-7.07.0.0-42.42~24.04.1UBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-89838
Ubuntu:26.04:LTSlinux-ibm7.0.0-1017.17UBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-89838
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-89838
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1038.42UBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-89838
Ubuntu:26.04:LTSlinux-oem-7.07.0.0-1017.17UBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-89838
Ubuntu:26.04:LTSlinux-oracle7.0.0-1015.16UBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-89838
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-89838
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-89838
Ubuntu:26.04:LTSlinux-riscv7.0.0-42.42.1UBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-riscv-7.07.0.0-42.42.1~24.04.1UBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-89838
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-89838
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-89838

Affected products (as reported)

VendorProductVersions
Linux Linux f356fe0cba0e3523e538987916bd2acedd4e6f41 – before b8ac8b14b9d92dd2e1cb05fa8994f41f701fbf28f356fe0cba0e3523e538987916bd2acedd4e6f41 – before 450ab2e5dbe0ef6e3ed73214256565f6f003d62af356fe0cba0e3523e538987916bd2acedd4e6f41 – before 3d02c7c8446f5d6793ac67f93bf3f84bf24e3f25f356fe0cba0e3523e538987916bd2acedd4e6f41 – before e754120f8ede55cc773ade108cf7e5b17c859c46f356fe0cba0e3523e538987916bd2acedd4e6f41 – before 7ab1780074943508534343e1e5e5ab0c9ef9dd7bf356fe0cba0e3523e538987916bd2acedd4e6f41 – before 35c5abccd0924b02ad34126f562d93c8d75b0831f356fe0cba0e3523e538987916bd2acedd4e6f41 – before 317d32e1a8deaf1c01c388badc667334c39e62caf356fe0cba0e3523e538987916bd2acedd4e6f41 – before 01027b2fcb74dade59fb833b51023f6593b6a9a2
Linux Linux 3.11

References