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 bpftool-debuginfoUpgrade kernel-headersUpgrade perf-debuginfoUpgrade python-perf-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debuginfoUpgrade kernelUpgrade kernel-tools-develUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-livepatch-5.10.155-138.670Upgrade perfUpgrade bpftoolUpgrade kernel-develUpgrade kernel-livepatch-5.15.75-48.135Upgrade python-perfUpgrade kernel-tools | May 20, 2026 | May 20, 2026 |
| Debian | — | Upgrade linux | Dec 31, 2025 | Dec 31, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade python3-perfUpgrade kernelUpgrade kernel-abi-stablelistsUpgrade bpftoolUpgrade kernel-tools-libsUpgrade kernel-tools | Mar 10, 2026 | Mar 10, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Dec 30, 2025 |
| Ubuntu | — | Upgrade linux-riscv-5.15Upgrade linux-azure-5.15Upgrade linux-gcp-5.4Upgrade linux-gkeUpgrade linux-xilinx-zynqmpUpgrade linux-oracle-5.4Upgrade linux-oracleUpgrade linux-gcpUpgrade linux-oracle-5.15Upgrade linux-gcp-5.15Upgrade linux-fipsUpgrade linux-realtimeUpgrade linux-nvidiaUpgrade linux-raspi-5.4Upgrade linux-kvmUpgrade linux-bluefieldUpgrade linux-intel-iotgUpgrade linux-lowlatency-hwe-5.15Upgrade linux-gkeopUpgrade linux-azure-fipsUpgrade linux-ibm-5.4Upgrade linux-gcp-fipsUpgrade linux-ibmUpgrade linuxUpgrade linux-lowlatencyUpgrade linux-awsUpgrade linux-aws-5.4Upgrade linux-raspiUpgrade linux-aws-fipsUpgrade linux-intel-iotg-5.15Upgrade linux-azure-5.4Upgrade linux-hwe-5.4Upgrade linux-azureUpgrade linux-iotUpgrade linux-hwe-5.15Upgrade linux-aws-5.15 | 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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