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