In the Linux kernel, the following vulnerability has been resolved:
nvme-pci: fix mempool alloc size
Convert the max size to bytes to match the units of the divisor that calculates the worst-case number of PRP entries.
The result is used to determine how many PRP Lists are required. The code was previously rounding this to 1 list, but we can require 2 in the worst case. In that scenario, the driver would corrupt memory beyond the size provided by the mempool.
While unlikely to occur (you'd need a 4MB in exactly 127 phys segments on a queue that doesn't support SGLs), this memory corruption has been observed by kfence.
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 kernel-debuginfoUpgrade kernelUpgrade kernel-tools-develUpgrade kernel-tools-debuginfoUpgrade kernel-develUpgrade bpftoolUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-livepatch-5.15.90-54.138Upgrade perfUpgrade bpftool-debuginfoUpgrade kernel-livepatch-5.10.165-143.735Upgrade kernel-toolsUpgrade kernel-debuginfo-common-x86_64Upgrade python-perfUpgrade kernel-headersUpgrade python-perf-debuginfoUpgrade perf-debuginfo | May 20, 2026 | May 20, 2026 |
| Debian | — | Upgrade linux | Dec 29, 2025 | Dec 29, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade bpftoolUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade python3-perfUpgrade kernel-abi-stablelistsUpgrade kernel | Mar 10, 2026 | Mar 10, 2026 |
| Redhat_linux | — | Upgrade kernel-rtNo solution existsUpgrade kernel | Jul 17, 2026 | Dec 24, 2025 |
| Rocky_linux | — | Upgrade kernel-modules-extraUpgrade kernel-debug-modulesUpgrade kernel-coreUpgrade perf-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-rt-debug-modulesUpgrade python3-perf-debuginfoUpgrade kernel-rt-debuginfoUpgrade kernel-rt-debug-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debug-debuginfoUpgrade kernel-tools-libsUpgrade kernel-rt-debuginfo-common-x86_64Upgrade kernel-debug-modules-extraUpgrade kernel-modulesUpgrade kernel-rt-kvmUpgrade kernel-toolsUpgrade kernel-rtUpgrade kernel-rt-modulesUpgrade kernel-rt-debug-modules-extraUpgrade kernel-rt-debug-develUpgrade kernel-tools-libs-develUpgrade kernel-rt-develUpgrade kernel-rt-debug-kvmUpgrade kernelUpgrade kernel-rt-debug-coreUpgrade kernel-rt-coreUpgrade kernel-debuginfoUpgrade kernel-develUpgrade perfUpgrade kernel-tools-debuginfoUpgrade kernel-rt-debugUpgrade python3-perfUpgrade kernel-debug-develUpgrade kernel-debug-coreUpgrade kernel-debugUpgrade bpftoolUpgrade kernel-rt-modules-extra | Oct 7, 2026 | Oct 6, 2026 |
| Ubuntu | — | Upgrade linux-aws-5.15Upgrade linux-azure-fdeUpgrade linux-gcp-5.15Upgrade linux-realtimeUpgrade linux-gcpUpgrade linux-nvidia-tegra-5.15Upgrade linux-bluefieldUpgrade linux-awsUpgrade linux-lowlatency-hwe-5.15Upgrade linux-intel-iot-realtimeUpgrade linux-oracleUpgrade linux-gkeopUpgrade linux-intel-iotg-5.15Upgrade linux-riscv-5.15Upgrade linux-gkeUpgrade linux-kvmUpgrade linux-ibmUpgrade linux-hwe-5.15Upgrade linux-nvidiaUpgrade linux-azure-5.15Upgrade linuxUpgrade linux-intel-iotgUpgrade linux-azureUpgrade linux-raspiUpgrade linux-lowlatencyUpgrade linux-oracle-5.15 | 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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