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