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-aarch64Upgrade python-perfUpgrade kernel-headersUpgrade kernel-debuginfoUpgrade kernel-livepatch-5.15.117-72.142Upgrade kernel-tools-develUpgrade perf-debuginfoUpgrade kernel-toolsUpgrade kernel-develUpgrade kernel-tools-debuginfoUpgrade python-perf-debuginfoUpgrade perfUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade bpftool | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel-tools-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-libbpfUpgrade kernel-debuginfo-common-aarch64Upgrade perf-debuginfoUpgrade perfUpgrade python3-perf-debuginfoUpgrade kernel-toolsUpgrade kernel-libbpf-develUpgrade kernelUpgrade kernel-headersUpgrade kernel-tools-develUpgrade kernel-debuginfo-common-x86_64Upgrade bpftoolUpgrade kernel-develUpgrade kernel-debuginfoUpgrade python3-perfUpgrade kernel-libbpf-staticUpgrade kernel-livepatch-6.1.29-47.49 | 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 python3-perfUpgrade kernel-abi-stablelists | Mar 17, 2026 | Mar 17, 2026 |
| Huawei Euleros 2_0_sp13 | — | Upgrade bpftoolUpgrade kernel-toolsUpgrade kernel-abi-stablelistsUpgrade 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-nvidia-tegra-5.15Upgrade linux-lowlatencyUpgrade linux-raspiUpgrade linux-awsUpgrade linux-ibm-5.15Upgrade linux-nvidia-tegraUpgrade linux-oracle-5.15Upgrade linux-aws-5.15Upgrade linux-riscv-5.15Upgrade linux-lowlatency-hwe-5.15Upgrade linux-bluefieldUpgrade linux-gkeUpgrade linuxUpgrade linux-realtimeUpgrade linux-ibmUpgrade linux-azure-5.15Upgrade linux-intel-iotgUpgrade linux-intel-iot-realtimeUpgrade linux-gcp-5.15Upgrade linux-azureUpgrade linux-nvidiaUpgrade linux-nvidia-tegra-igxUpgrade linux-hwe-5.15Upgrade linux-oracleUpgrade linux-intel-iotg-5.15Upgrade linux-xilinx-zynqmpUpgrade linux-gcpUpgrade linux-gkeopUpgrade linux-kvm | Oct 10, 2025 | Oct 1, 2025 |
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