In the Linux kernel, the following vulnerability has been resolved:
ext4: improve error handling from ext4_dirhash()
The ext4_dirhash() will *almost* never fail, especially when the hash tree feature was first introduced. However, with the addition of support of encrypted, casefolded file names, that function can most certainly fail today.
So make sure the callers of ext4_dirhash() properly check for failures, and reflect the errors back up to their callers.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernelUpgrade bpftoolUpgrade kernel-debuginfo-common-x86_64Upgrade perf-debuginfoUpgrade perfUpgrade kernel-livepatch-5.15.117-72.142Upgrade kernel-develUpgrade kernel-debuginfoUpgrade kernel-toolsUpgrade kernel-headersUpgrade kernel-debuginfo-common-aarch64Upgrade python-perfUpgrade kernel-tools-debuginfoUpgrade kernel-tools-develUpgrade bpftool-debuginfoUpgrade python-perf-debuginfo | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel-debuginfoUpgrade bpftoolUpgrade kernel-libbpf-develUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-develUpgrade kernel-tools-develUpgrade kernel-libbpf-staticUpgrade kernel-livepatch-6.1.29-47.49Upgrade kernelUpgrade python3-perfUpgrade kernel-headersUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-tools-debuginfoUpgrade bpftool-debuginfoUpgrade perfUpgrade kernel-libbpfUpgrade perf-debuginfoUpgrade python3-perf-debuginfoUpgrade kernel-tools | Oct 24, 2025 | Oct 1, 2025 |
| Debian | — | Upgrade linux | Oct 3, 2025 | Oct 3, 2025 |
| Huawei Euleros 2_0_sp11 | — | Upgrade kernel-toolsUpgrade kernel-tools-libsUpgrade kernelUpgrade bpftoolUpgrade kernel-abi-stablelistsUpgrade python3-perf | Mar 17, 2026 | Mar 17, 2026 |
| Huawei Euleros 2_0_sp13 | — | Upgrade bpftoolUpgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade kernelUpgrade kernel-tools-libsUpgrade python3-perf | Feb 3, 2026 | Feb 2, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Oct 1, 2025 |
| Ubuntu | — | Upgrade linux-raspiUpgrade linux-nvidia-tegra-5.15Upgrade linux-lowlatency-hwe-5.15Upgrade linux-ibm-5.15Upgrade linux-gkeUpgrade linux-lowlatencyUpgrade linux-bluefieldUpgrade linuxUpgrade linux-azure-fdeUpgrade linux-riscv-5.15Upgrade linux-aws-5.15Upgrade linux-oracle-5.15Upgrade linux-awsUpgrade linux-realtimeUpgrade linux-nvidia-tegraUpgrade linux-intel-iotg-5.15Upgrade linux-nvidia-tegra-igxUpgrade linux-azure-5.15Upgrade linux-xilinx-zynqmpUpgrade linux-gcp-5.15Upgrade linux-kvmUpgrade linux-intel-iotgUpgrade linux-gkeopUpgrade linux-hwe-5.15Upgrade linux-ibmUpgrade linux-nvidiaUpgrade linux-azureUpgrade linux-gcpUpgrade linux-intel-iot-realtimeUpgrade linux-oracle | Oct 10, 2025 | Oct 1, 2025 |
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