In the Linux kernel, the following vulnerability has been resolved:
RDMA/siw: Fix immediate work request flush to completion queue
Correctly set send queue element opcode during immediate work request flushing in post sendqueue operation, if the QP is in ERROR state. An undefined ocode value results in out-of-bounds access to an array for mapping the opcode between siw internal and RDMA core representation in work completion generation. It resulted in a KASAN BUG report of type 'global-out-of-bounds' during NFSoRDMA testing.
This patch further fixes a potential case of a malicious user which may write undefined values for completion queue elements status or opcode, if the CQ is memory mapped to user land. It avoids the same out-of-bounds access to arrays for status and opcode mapping as described above.
CVSS Details
- CVSS 3.1 Base Score: 7.1
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade bpftoolUpgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade kernel-debuginfoUpgrade kernel-toolsUpgrade kernel-develUpgrade kernel-tools-debuginfoUpgrade python-perf-debuginfoUpgrade kernel-livepatch-5.10.165-143.735Upgrade perfUpgrade kernel-tools-develUpgrade python-perfUpgrade kernel-headersUpgrade kernel-livepatch-5.15.86-53.137Upgrade perf-debuginfo | May 20, 2026 | May 20, 2026 |
| Debian | — | Upgrade linux | Dec 29, 2025 | Dec 29, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Dec 24, 2025 |
| Ubuntu | — | Upgrade linux-gcpUpgrade linux-gcp-5.15Upgrade linux-raspi-5.4Upgrade linux-gcp-fipsUpgrade linux-awsUpgrade linux-lowlatency-hwe-5.15Upgrade linux-nvidia-tegra-5.15Upgrade linux-azure-fdeUpgrade linux-bluefieldUpgrade linux-intel-iot-realtimeUpgrade linux-iotUpgrade linux-azure-5.4Upgrade linux-realtimeUpgrade linux-intel-iotg-5.15Upgrade linux-lowlatencyUpgrade linux-aws-fipsUpgrade linux-gcp-5.4Upgrade linux-riscv-5.15Upgrade linux-gkeUpgrade linuxUpgrade linux-hwe-5.4Upgrade linux-azure-5.15Upgrade linux-oracle-5.15Upgrade linux-aws-5.15Upgrade linux-hwe-5.15Upgrade linux-ibm-5.4Upgrade linux-ibmUpgrade linux-azure-fipsUpgrade linux-gkeopUpgrade linux-aws-5.4Upgrade linux-xilinx-zynqmpUpgrade linux-intel-iotgUpgrade linux-nvidiaUpgrade linux-oracleUpgrade linux-kvmUpgrade linux-azureUpgrade linux-fipsUpgrade linux-raspiUpgrade linux-oracle-5.4 | Jan 6, 2026 | Dec 24, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Dec 24, 2025 |
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