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 perf-debuginfoUpgrade kernel-livepatch-5.15.86-53.137Upgrade python-perf-debuginfoUpgrade python-perfUpgrade perfUpgrade kernel-headersUpgrade kernel-livepatch-5.10.165-143.735Upgrade kernel-tools-develUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-debuginfo-common-x86_64Upgrade bpftoolUpgrade kernel-develUpgrade bpftool-debuginfoUpgrade kernel-toolsUpgrade kernelUpgrade kernel-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-raspiUpgrade linux-intel-iotg-5.15Upgrade linux-hwe-5.15Upgrade linux-hwe-5.4Upgrade linux-ibmUpgrade linux-azure-fipsUpgrade linux-kvmUpgrade linux-xilinx-zynqmpUpgrade linux-aws-5.15Upgrade linux-aws-5.4Upgrade linux-nvidiaUpgrade linux-oracle-5.15Upgrade linux-oracleUpgrade linuxUpgrade linux-azureUpgrade linux-azure-5.15Upgrade linux-ibm-5.4Upgrade linux-gkeopUpgrade linux-riscv-5.15Upgrade linux-intel-iotgUpgrade linux-oracle-5.4Upgrade linux-fipsUpgrade linux-aws-fipsUpgrade linux-gcp-5.4Upgrade linux-gkeUpgrade linux-lowlatencyUpgrade linux-bluefieldUpgrade linux-gcpUpgrade linux-gcp-5.15Upgrade linux-realtimeUpgrade linux-gcp-fipsUpgrade linux-raspi-5.4Upgrade linux-nvidia-tegra-5.15Upgrade linux-awsUpgrade linux-azure-fdeUpgrade linux-lowlatency-hwe-5.15Upgrade linux-azure-5.4Upgrade linux-intel-iot-realtimeUpgrade linux-iot | 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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