CVE-2026-98901

Medium

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix lease break and ack state handling Do not skip valid lease states containing WRITE_CACHING when breaking level-II/read leases for writes and truncates. Handle lease break acknowledgments according to the SMB2 rule that the acknowledged state must be a subset of the server's break target. Apply the acknowledged state directly and keep the break pending on failed ACKs.

SeverityMedium
CVSS5.4
Exploit probability—
ProductMicrosoft Azl3 Kernel
PublishedOct 23, 2026
First seenOct 23, 2026

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
microsoft azl3_kernel_6.6.157.1-1No range specified—

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CVE-2026-98901 · Microsoft Azl3 Kernel · Dark Radar