Bug 2385245 (CVE-2023-3866)

Summary: CVE-2023-3866 kernel: ksmbd Chained Request NULL Pointer Dereference
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the Linux kernel in the ksmbd component. The session id and tree id in the compound request are not properly validated. This can result in a NULL pointer dereference issue.
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Description OSIDB Bzimport 2025-07-30 18:35:14 UTC
In the Linux kernel, this specific flaw exists within the handling of ksmbd chained requests. The issue results from dereferencing a NULL pointer. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.