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