CVE-2026-98162 Linux CVE debrief

Who should care

Linux kernel maintainers, Linux kernel users, vulnerability management teams, security teams, and operators responsible for Linux kernel deployments should verify Linux kernel versions to assess exposure and apply necessary patches or mitigations. These stakeholders should review the official CVE record and NVD entry for more information on the vulnerability and its impact on their systems.

Why it matters

A vulnerability in the Linux kernel has been resolved, which could lead to a tree connection leak in smb2_tree_connect(). Linux kernel maintainers and users should verify Linux kernel versions to assess exposure.

• Verify Linux kernel versions to assess exposure

Technical summary

The Linux kernel vulnerability (CVE-2026-98162) could lead to a tree connection leak in smb2_tree_connect() when ksmbd_iov_pin_rsp() fails. This issue has been resolved in the Linux kernel. The vulnerability affects Linux kernel deployments, and maintainers and users should verify versions to assess exposure. The official CVE record and NVD entry provide additional information on the vulnerability. Users should review these sources and apply necessary patches or mitigations to prevent exploitation. The vulnerability is related to the smb/server component and requires careful review of Linux kernel versions.

Defensive priority

Verify Linux kernel versions and assess exposure.

Recommended defensive actions

• Verify Linux kernel versions
• Assess exposure
• Apply vendor patches
• Review compensating controls
• Monitor for exposure
• Track exceptions
• Perform asset inventory

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. The official CVE Program record (CVE-2026-98162) and NVD detail page (CVE-2026-98162) offer source-provided CVE metadata and vulnerability assessments. However, the details about the vulnerability's impact, affected systems, and exploitation methods are not explicitly mentioned. Further verification and review of Linux kernel versions are necessary to assess exposure. The source references (ref-3 and ref-4) may provide additional context, but their details are not available.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.