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 kernel-debuginfo-common-x86_64Upgrade bpftoolUpgrade kernelUpgrade kernel-tools-debuginfoUpgrade kernel-toolsUpgrade kernel-debuginfo-common-aarch64Upgrade perfUpgrade python-perf-debuginfoUpgrade perf-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-tools-develUpgrade kernel-headersUpgrade kernel-debuginfoUpgrade kernel-develUpgrade kernel-livepatch-5.15.117-72.142Upgrade python-perf | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel-debuginfoUpgrade python3-perfUpgrade kernel-develUpgrade kernelUpgrade kernel-tools-develUpgrade kernel-livepatch-6.1.29-47.49Upgrade kernel-headersUpgrade kernel-libbpf-staticUpgrade kernel-libbpf-develUpgrade bpftoolUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-toolsUpgrade kernel-libbpfUpgrade bpftool-debuginfoUpgrade perf-debuginfoUpgrade kernel-tools-debuginfoUpgrade python3-perf-debuginfoUpgrade perfUpgrade kernel-debuginfo-common-aarch64 | Oct 24, 2025 | Oct 1, 2025 |
| Debian | — | Upgrade linux | Oct 3, 2025 | Oct 3, 2025 |
| Huawei Euleros 2_0_sp11 | — | Upgrade kernel-abi-stablelistsUpgrade python3-perfUpgrade kernelUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade bpftool | Mar 17, 2026 | Mar 17, 2026 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-abi-stablelistsUpgrade bpftoolUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade kernelUpgrade python3-perf | Feb 3, 2026 | Feb 2, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Oct 1, 2025 |
| Ubuntu | — | Upgrade linux-intel-iotg-5.15Upgrade linux-nvidia-tegra-igxUpgrade linux-hwe-5.15Upgrade linux-azure-5.15Upgrade linux-xilinx-zynqmpUpgrade linux-nvidiaUpgrade linux-azureUpgrade linux-intel-iot-realtimeUpgrade linux-gkeopUpgrade linux-kvmUpgrade linux-intel-iotgUpgrade linux-oracleUpgrade linux-ibmUpgrade linux-gcpUpgrade linux-gcp-5.15Upgrade linux-raspiUpgrade linux-bluefieldUpgrade linux-nvidia-tegraUpgrade linux-nvidia-tegra-5.15Upgrade linux-ibm-5.15Upgrade linux-lowlatencyUpgrade linux-gkeUpgrade linux-aws-5.15Upgrade linux-lowlatency-hwe-5.15Upgrade linux-riscv-5.15Upgrade linuxUpgrade linux-realtimeUpgrade linux-awsUpgrade linux-oracle-5.15 | Oct 10, 2025 | Oct 1, 2025 |
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