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