In the Linux kernel, the following vulnerability has been resolved:
NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL
OPDESC() simply indexes into nfsd4_ops[] by the op's operation number, without range checking that value. It assumes callers are careful to avoid calling it with an out-of-bounds opnum value.
nfsd4_decode_compound() is not so careful, and can invoke OPDESC() with opnum set to OP_ILLEGAL, which is 10044 -- well beyond the end of nfsd4_ops[].
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade python-perf-debuginfoUpgrade kernelUpgrade bpftoolUpgrade kernel-debuginfoUpgrade kernel-tools-develUpgrade kernel-livepatch-5.10.220-209.867Upgrade kernel-debuginfo-common-aarch64Upgrade kernel-livepatch-4.14.355-280.710Upgrade bpftool-debuginfoUpgrade perf-debuginfoUpgrade kernel-toolsUpgrade kernel-develUpgrade kernel-livepatch-5.15.108-65.141Upgrade perfUpgrade kernel-tools-debuginfoUpgrade python-perf | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel-debuginfoUpgrade kernel-libbpf-develUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-tools-debuginfoUpgrade kernelUpgrade kernel-develUpgrade kernel-libbpf-staticUpgrade kernel-tools-develUpgrade kernel-headersUpgrade kernel-libbpfUpgrade python3-perfUpgrade python3-perf-debuginfoUpgrade perf-debuginfoUpgrade kernel-livepatch-6.1.25-37.47Upgrade kernel-debuginfo-common-aarch64Upgrade bpftool-debuginfoUpgrade kernel-toolsUpgrade perfUpgrade bpftool | Oct 24, 2025 | Oct 7, 2025 |
| Debian | — | Upgrade linux | Oct 9, 2025 | Oct 9, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-tools-libsUpgrade kernelUpgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade bpftoolUpgrade python3-perf | Feb 3, 2026 | Feb 2, 2026 |
| Redhat_linux | — | No solution existsUpgrade kernel-rtUpgrade kernel | Jun 17, 2026 | Oct 7, 2025 |
| Ubuntu | — | Upgrade linux-azureUpgrade linuxUpgrade linux-nvidia-tegra-igxUpgrade linux-nvidia-tegra-5.15Upgrade linux-hwe-5.15Upgrade linux-awsUpgrade linux-raspiUpgrade linux-aws-5.15Upgrade linux-oracleUpgrade linux-ibm-5.15Upgrade linux-riscv-5.15Upgrade linux-gcp-5.15Upgrade linux-nvidia-tegraUpgrade linux-intel-iotg-5.15Upgrade linux-oracle-5.15Upgrade linux-azure-5.15Upgrade linux-kvmUpgrade linux-intel-iotgUpgrade linux-xilinx-zynqmpUpgrade linux-lowlatency-hwe-5.15Upgrade linux-nvidiaUpgrade linux-gkeUpgrade linux-intel-iot-realtimeUpgrade linux-ibmUpgrade linux-gcpUpgrade linux-bluefieldUpgrade linux-realtimeUpgrade linux-gkeopUpgrade linux-lowlatency | Oct 10, 2025 | Oct 7, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 15, 2025 | Oct 7, 2025 |
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