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Vulnerability · Published Jun 18, 2025 · Assigned by Linux

CVE-2022-50020ext4: avoid resizing to a partial cluster size

Medium 5.5

In plain English

A medium-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 11% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 89.0% 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: ext4: avoid resizing to a partial cluster size This patch avoids an attempt to resize the filesystem to an unaligned cluster boundary. An online resize to a size that is not integral to cluster size results in the last iteration attempting to grow the fs by a negative amount, which trips a BUG_ON and leaves the fs with a corrupted in-memory superblock.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8kernel4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8kernel-abi-stablelists4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8kernel-core4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8kernel-cross-headers4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8kernel-debug4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8kernel-debug-core4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8kernel-debug-devel4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8kernel-debug-modules4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8kernel-debug-modules-extra4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8kernel-devel4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8kernel-doc4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8kernel-headers4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8kernel-modules4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8kernel-modules-extra4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8kernel-rt4.18.0-553.66.1.rt7.407.el8_10ALSA-2025:12753
AlmaLinux:8kernel-rt-core4.18.0-553.66.1.rt7.407.el8_10ALSA-2025:12753
AlmaLinux:8kernel-rt-debug4.18.0-553.66.1.rt7.407.el8_10ALSA-2025:12753
AlmaLinux:8kernel-rt-debug-core4.18.0-553.66.1.rt7.407.el8_10ALSA-2025:12753
AlmaLinux:8kernel-rt-debug-devel4.18.0-553.66.1.rt7.407.el8_10ALSA-2025:12753
AlmaLinux:8kernel-rt-debug-modules4.18.0-553.66.1.rt7.407.el8_10ALSA-2025:12753
AlmaLinux:8kernel-rt-debug-modules-extra4.18.0-553.66.1.rt7.407.el8_10ALSA-2025:12753
AlmaLinux:8kernel-rt-devel4.18.0-553.66.1.rt7.407.el8_10ALSA-2025:12753
AlmaLinux:8kernel-rt-modules4.18.0-553.66.1.rt7.407.el8_10ALSA-2025:12753
AlmaLinux:8kernel-rt-modules-extra4.18.0-553.66.1.rt7.407.el8_10ALSA-2025:12753
AlmaLinux:8kernel-tools4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8kernel-tools-libs4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8kernel-tools-libs-devel4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8kernel-zfcpdump4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8kernel-zfcpdump-core4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8kernel-zfcpdump-devel4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8kernel-zfcpdump-modules4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8perf4.18.0-553.66.1.el8_10ALSA-2025:12752
AlmaLinux:8python3-perf4.18.0-553.66.1.el8_10ALSA-2025:12752
Debian:12linux6.0.2-1DEBIAN-CVE-2022-50020
Debian:13linux6.0.2-1DEBIAN-CVE-2022-50020
Debian:14linux6.0.2-1DEBIAN-CVE-2022-50020
Rocky Linux:8kernel0:4.18.0-553.66.1.el8_10RLSA-2025:12752
Rocky Linux:8kernel-rt0:4.18.0-553.66.1.rt7.407.el8_10RLSA-2025:12753
Ubuntu:22.04:LTSlinux5.15.0-53.59UBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-aws5.15.0-1023.27UBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-azure5.15.0-1023.29UBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1024.30.1UBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-gcp5.15.0-1022.29UBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-gke5.15.0-1020.25UBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1008.12UBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-ibm5.15.0-1018.21UBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1018.23UBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-kvm5.15.0-1021.26UBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-53.59UBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1015.15UBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-oracle5.15.0-1022.28UBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-raspi5.15.0-1018.20UBUNTU-CVE-2022-50020
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-50020
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-50020
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-50020
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-50020

Affected products (as reported)

VendorProductVersions
Linux Linux d77147ff443b255d82c907a632c825b2cc610b10 – before 7bdfb01fc5f6b3696728aeb527c50386e0ee09a1d77147ff443b255d82c907a632c825b2cc610b10 – before a6805b3dcf5cd41f2ae3a03dca43411135b99849d77147ff443b255d82c907a632c825b2cc610b10 – before 80288883294c5b4ed18bae0d8bd9c4a12f297074d77147ff443b255d82c907a632c825b2cc610b10 – before 72b850a2a996f72541172e7cf686d54a2b29bcd8d77147ff443b255d82c907a632c825b2cc610b10 – before 0082e99a9074ff88eff729c70c93454c8588d8e1d77147ff443b255d82c907a632c825b2cc610b10 – before 69cb8e9d8cd97cdf5e293b26d70a9dee3e35e6bd
Linux Linux 4.15

References