CVE-2026-53271

A flaw was found in the ksmbd component of the Linux kernel. A remote attacker could exploit a NULL-dereference vulnerability in the oplock/lease break notifiers. This occurs because opinfo-conn is read without proper checks, allowing a concurrent Server Message Block SMB2 LOGOFF to set op-conn t...

Astra Linux – Vulnerability in Linux 5.15

A flaw was discovered in the ksmbd component of the Linux kernel, a high-performance in-kernel SMB server. The specific flaw occurs during the handling of SMB2LOGOFF commands. The issue arises from the lack of proper validation of a pointer before accessing it. An attacker can exploit this...

Microsoft SRV2.SYS SMB2 Logoff Remote Kernel NULL Pointer Dereference

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'Microsoft SRV2.SYS SMB2 Logoff Remote Kernel NULL Pointer Dereference', 'Description' = %q This module triggers a NULL pointer dereference in the...

CVE-2023-32257

A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the processing of SMB2SESSIONSETUP and SMB2LOGOFF commands. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage th...

AZL-27762 CVE-2023-32257 affecting package kernel for versions less than 5.15.135.1-2

A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the processing of SMB2SESSIONSETUP and SMB2LOGOFF commands. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage th...

AZL-27763 CVE-2023-32258 affecting package kernel for versions less than 5.15.135.1-2

A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the processing of SMB2LOGOFF and SMB2CLOSE commands. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this...