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[].
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-tools-develUpgrade python-perf-debuginfoUpgrade kernelUpgrade bpftoolUpgrade kernel-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade perf-debuginfoUpgrade bpftool-debuginfoUpgrade python-perfUpgrade kernel-livepatch-5.15.108-65.141Upgrade kernel-debuginfo-common-aarch64Upgrade kernel-develUpgrade kernel-toolsUpgrade kernel-livepatch-4.14.355-280.710Upgrade kernel-tools-debuginfoUpgrade perfUpgrade kernel-livepatch-5.10.220-209.867 | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade kernel-develUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfoUpgrade kernel-libbpfUpgrade kernel-libbpf-develUpgrade kernel-headersUpgrade python3-perf-debuginfoUpgrade kernelUpgrade python3-perfUpgrade kernel-tools-develUpgrade kernel-libbpf-staticUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debuginfo-common-aarch64Upgrade kernel-toolsUpgrade bpftool-debuginfoUpgrade perfUpgrade perf-debuginfoUpgrade bpftoolUpgrade kernel-livepatch-6.1.25-37.47 | Oct 24, 2025 | Oct 7, 2025 |
| Debian | — | Upgrade linux | Oct 9, 2025 | Oct 9, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-abi-stablelistsUpgrade kernelUpgrade python3-perfUpgrade bpftoolUpgrade kernel-toolsUpgrade kernel-tools-libs | Feb 3, 2026 | Feb 2, 2026 |
| Redhat_linux | — | Upgrade kernelNo solution existsUpgrade kernel-rt | Jun 17, 2026 | Oct 7, 2025 |
| Ubuntu | — | Upgrade linux-kvmUpgrade linux-oracleUpgrade linux-azure-5.15Upgrade linux-lowlatencyUpgrade linux-lowlatency-hwe-5.15Upgrade linux-intel-iotgUpgrade linux-riscv-5.15Upgrade linux-oracle-5.15Upgrade linux-nvidia-tegraUpgrade linux-xilinx-zynqmpUpgrade linux-ibm-5.15Upgrade linux-gcp-5.15Upgrade linux-azure-fdeUpgrade linux-realtimeUpgrade linux-ibmUpgrade linux-intel-iotg-5.15Upgrade linux-bluefieldUpgrade linux-gkeUpgrade linux-gkeopUpgrade linux-gcpUpgrade linux-nvidiaUpgrade linux-intel-iot-realtimeUpgrade linux-azureUpgrade linux-raspiUpgrade linux-hwe-5.15Upgrade linux-aws-5.15Upgrade linux-nvidia-tegra-5.15Upgrade linux-awsUpgrade linuxUpgrade linux-nvidia-tegra-igx | 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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