In the Linux kernel, the following vulnerability has been resolved:
cifs: Fix the error length of VALIDATE_NEGOTIATE_INFO message
Commit d5c7076b772a ("smb3: add smb3.1.1 to default dialect list") extend the dialects from 3 to 4, but forget to decrease the extended length when specific the dialect, then the message length is larger than expected.
This maybe leak some info through network because not initialize the message body.
After apply this patch, the VALIDATE_NEGOTIATE_INFO message length is reduced from 28 bytes to 26 bytes.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade python-perf-debuginfoUpgrade kernelUpgrade kernel-headersUpgrade perf-debuginfoUpgrade kernel-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-tools-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-toolsUpgrade kernel-develUpgrade bpftoolUpgrade kernel-livepatch-5.15.75-48.135Upgrade perfUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-livepatch-5.10.155-138.670Upgrade python-perfUpgrade kernel-tools-devel | May 20, 2026 | May 20, 2026 |
| Debian | — | Upgrade linux | Dec 31, 2025 | Dec 31, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernel-tools-libsUpgrade kernel-toolsUpgrade kernel-abi-stablelistsUpgrade python3-perfUpgrade bpftoolUpgrade kernel | Mar 10, 2026 | Mar 10, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Dec 30, 2025 |
| Ubuntu | — | Upgrade linux-aws-5.4Upgrade linux-hwe-5.15Upgrade linux-lowlatencyUpgrade linux-azureUpgrade linuxUpgrade linux-aws-5.15Upgrade linux-ibm-5.4Upgrade linux-azure-fipsUpgrade linux-gcp-fipsUpgrade linux-intel-iotg-5.15Upgrade linux-hwe-5.4Upgrade linux-azure-5.4Upgrade linux-awsUpgrade linux-ibmUpgrade linux-aws-fipsUpgrade linux-raspiUpgrade linux-azure-fdeUpgrade linux-gkeopUpgrade linux-iotUpgrade linux-raspi-5.4Upgrade linux-gcpUpgrade linux-xilinx-zynqmpUpgrade linux-intel-iotgUpgrade linux-oracleUpgrade linux-oracle-5.4Upgrade linux-azure-5.15Upgrade linux-riscv-5.15Upgrade linux-oracle-5.15Upgrade linux-realtimeUpgrade linux-gkeUpgrade linux-gcp-5.4Upgrade linux-lowlatency-hwe-5.15Upgrade linux-gcp-5.15Upgrade linux-nvidiaUpgrade linux-fipsUpgrade linux-bluefieldUpgrade linux-kvm | Jan 6, 2026 | Jan 2, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Dec 30, 2025 |
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