In the Linux kernel, the following vulnerability has been resolved:
crypto: lib/mpi - avoid null pointer deref in mpi_cmp_ui()
During NVMeTCP Authentication a controller can trigger a kernel oops by specifying the 8192 bit Diffie Hellman group and passing a correctly sized, but zeroed Diffie Hellamn value. mpi_cmp_ui() was detecting this if the second parameter was 0, but 1 is passed from dh_is_pubkey_valid(). This causes the null pointer u->d to be dereferenced towards the end of mpi_cmp_ui()
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-debuginfoUpgrade python-perf-debuginfoUpgrade kernel-headersUpgrade kernelUpgrade kernel-tools-debuginfoUpgrade kernel-livepatch-5.15.133-86.144Upgrade kernel-develUpgrade perfUpgrade perf-debuginfoUpgrade kernel-tools-develUpgrade kernel-debuginfo-common-aarch64Upgrade bpftool-debuginfoUpgrade kernel-livepatch-5.10.197-186.748Upgrade kernel-toolsUpgrade kernel-debuginfo-common-x86_64Upgrade bpftoolUpgrade kernel-livepatch-4.14.326-245.539Upgrade python-perf | May 20, 2026 | May 20, 2026 |
| Debian | — | Upgrade linux | Dec 10, 2025 | Dec 10, 2025 |
| Huawei Euleros 2_0_sp10 | — | Upgrade python3-perfUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade kernel-abi-stablelistsUpgrade kernel | Mar 17, 2026 | Mar 16, 2026 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade python3-perfUpgrade kernelUpgrade kernel-tools-libsUpgrade bpftool | Mar 10, 2026 | Mar 10, 2026 |
| Ubuntu | — | Upgrade linux-azure-fde-5.15Upgrade linux-oracle-5.15Upgrade linux-intel-iotgUpgrade linux-nvidia-tegraUpgrade linux-ibmUpgrade linux-ibm-5.15Upgrade linux-riscv-5.15Upgrade linux-fipsUpgrade linux-aws-5.4Upgrade linux-hwe-5.15Upgrade linux-oracleUpgrade linux-ibm-5.4Upgrade linux-raspiUpgrade linux-azure-5.15Upgrade linux-aws-fipsUpgrade linux-aws-5.15Upgrade linux-lowlatencyUpgrade linux-azure-fipsUpgrade linux-xilinx-zynqmpUpgrade linux-oracle-5.4Upgrade linux-nvidiaUpgrade linux-gkeopUpgrade linux-azureUpgrade linux-kvmUpgrade linux-intel-iotg-5.15Upgrade linux-gkeUpgrade linuxUpgrade linux-hwe-5.4Upgrade linux-gcp-fipsUpgrade linux-lowlatency-hwe-5.15Upgrade linux-gcpUpgrade linux-azure-5.4Upgrade linux-awsUpgrade linux-realtimeUpgrade linux-raspi-5.4Upgrade linux-gcp-5.15Upgrade linux-bluefieldUpgrade linux-nvidia-tegra-igxUpgrade linux-iotUpgrade linux-intel-iot-realtimeUpgrade linux-nvidia-tegra-5.15Upgrade linux-gcp-5.4 | Dec 11, 2025 | Dec 9, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Dec 9, 2025 |
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