CVE-2026-89636

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/14f60e959b5ac813715ff72e127beb3584ddabf6
https://git.kernel.org/stable/c/3ff9462bb7a06d8d32a1dc02d39580b078ec9e55
https://git.kernel.org/stable/c/5baab40404a9393bcc0b7b8f1950bf2c307e0984
https://git.kernel.org/stable/c/7507bd1885643d0461a6017767492450af1ce2a3
https://git.kernel.org/stable/c/9ab46a13798a61d9d020b01d4e57efdabe6624fa
https://git.kernel.org/stable/c/b1b741cf8e7ce1b91d937e23decd3d3358748700

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-11 20:19

Updated : 2026-09-14 13:19

NVD link : CVE-2026-89636

Mitre link : CVE-2026-89636

CVE.ORG link : CVE-2026-89636

JSON object : View

Products Affected

No product.

CWE

No CWE.

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