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VULNERABILITIES

CVE-2026-89636 Details

Description

In the Linux kernel, the following vulnerability has been resolved: smb: client: clear ce->tgthint in free_tgts() When free_tgts() frees all structures in ce->tlist, ce->tgthint is left pointing to one of the freed cache_dfs_tgt structures. If ce->tgthint is not reset before it is used later, it results in a use-after-free. Set ce->tgthint to NULL in free_tgts() after the elements are freed to reflect that no elements remain.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: kernel.orgCVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/14f60e959b5ac813715ff72e127beb3584ddabf6 kernel.org
https://git.kernel.org/stable/c/3ff9462bb7a06d8d32a1dc02d39580b078ec9e55 kernel.org
https://git.kernel.org/stable/c/5baab40404a9393bcc0b7b8f1950bf2c307e0984 kernel.org
https://git.kernel.org/stable/c/7507bd1885643d0461a6017767492450af1ce2a3 kernel.org
https://git.kernel.org/stable/c/9ab46a13798a61d9d020b01d4e57efdabe6624fa kernel.org

see all 6 references

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-89636
NVD Published Date:
Sep 11, 2026
NVD Last Modified:
Sep 14, 2026
Source:
kernel.org
CVE-2026-89636 Details - Not Deferred