CVE-2026-74521

A flaw was found in ksmbd, a Linux kernel module that provides an in-kernel Server Message Block SMB server. This vulnerability stems from a logic error in how ClientGUIDs, which are unique client identifiers, are compared. The strncmp function, used for this comparison, stops at the first null...

CVE-2026-72492

A flaw was found in ksmbd, the in-kernel SMB3 server for Linux. This memory corruption vulnerability, known as a use-after-free, occurs when the system attempts to use memory after it has been released. A remote attacker could trigger this by performing a concurrent close operation during lease...

SUSE CVE-2026-74521

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use memcmp to compare ClientGUIDs ClientGUID is a fixed-size binary value and can contain embedded NUL bytes. strncmp stops comparing at the first NUL byte, so different ClientGUID values can incorrectly be treated as equa...

CVE-2026-74521

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use memcmp to compare ClientGUIDs ClientGUID is a fixed-size binary value and can contain embedded NUL bytes. strncmp stops comparing at the first NUL byte, so different ClientGUID values can incorrectly be treated as equa...

UBUNTU-CVE-2026-74521

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use memcmp to compare ClientGUIDs ClientGUID is a fixed-size binary value and can contain embedded NUL bytes. strncmp stops comparing at the first NUL byte, so different ClientGUID values can incorrectly be treated as equa...

CVE-2026-74521

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use memcmp to compare ClientGUIDs ClientGUID is a fixed-size binary value and can contain embedded NUL bytes. strncmp stops comparing at the first NUL byte, so different ClientGUID values can incorrectly be treated as equa...

CVE-2026-74521 ksmbd: use memcmp() to compare ClientGUIDs

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use memcmp to compare ClientGUIDs ClientGUID is a fixed-size binary value and can contain embedded NUL bytes. strncmp stops comparing at the first NUL byte, so different ClientGUID values can incorrectly be treated as equa...

EUVD-2026-59714

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use memcmp to compare ClientGUIDs ClientGUID is a fixed-size binary value and can contain embedded NUL bytes. strncmp stops comparing at the first NUL byte, so different ClientGUID values can incorrectly be treated as equa...

CVE-2026-74521

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use memcmp to compare ClientGUIDs ClientGUID is a fixed-size binary value and can contain embedded NUL bytes. strncmp stops comparing at the first NUL byte, so different ClientGUID values can incorrectly be treated as equa...

CVE-2026-74521

The CVE-2026-74521 vulnerability affects the Linux kernel’s ksmbd component, where ClientGUIDs were compared with strncmp() and could misclassify distinct GUIDs that contain embedded NUL bytes. The fix uses memcmp() to compare all SMB2_CLIENT_GUID_SIZE bytes in SMB3 multichannel session binding a...

CVE-2026-74521 ksmbd: use memcmp() to compare ClientGUIDs

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use memcmp to compare ClientGUIDs ClientGUID is a fixed-size binary value and can contain embedded NUL bytes. strncmp stops comparing at the first NUL byte, so different ClientGUID values can incorrectly be treated as equa...

PT-2026-72973

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use memcmp to compare ClientGUIDs ClientGUID is a fixed-size binary value and can contain embedded NUL bytes. strncmp stops comparing at the first NUL byte, so different ClientGUID values can incorrectly be treated as equa...

Linux Distros Unpatched Vulnerability : CVE-2026-74521

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: use memcmp to compare ClientGUIDs ClientGUID is a fixed-size binary value and can contain embedded NUL bytes. strncmp stops comparing at the first NUL...

SUSE CVE-2026-68388

In the Linux kernel, the following vulnerability has been resolved: smb/client: handle overlapping allocated ranges in fallocate smb3simplefallocaterange can skip holes when an allocated range returned by the server starts before the current fallocate offset. The skipped hole is not zero-filled,...

CVE-2026-68130

A flaw was found in ksmbd, a kernel module for SMB3 protocol server in the Linux kernel. An authenticated attacker can exploit a vulnerability in the NTLM NT LAN Manager authentication process. By manipulating specific fields in the NTLM authentication blob, an attacker can cause a victim's sessi...

UBUNTU-CVE-2026-68388

In the Linux kernel, the following vulnerability has been resolved: smb/client: handle overlapping allocated ranges in fallocate smb3simplefallocaterange can skip holes when an allocated range returned by the server starts before the current fallocate offset. The skipped hole is not zero-filled,...

CVE-2026-68388

In the Linux kernel, the following vulnerability has been resolved: smb/client: handle overlapping allocated ranges in fallocate smb3simplefallocaterange can skip holes when an allocated range returned by the server starts before the current fallocate offset. The skipped hole is not zero-filled,...

Linux Distros Unpatched Vulnerability : CVE-2026-68388

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - smb/client: handle overlapping allocated ranges in fallocate smb3simplefallocaterange can skip holes when an allocated range returned by the server starts befor...

CVE-2026-64390

In the Linux kernel, the following vulnerability has been resolved: ksmbd: track the connection owning a byte-range lock SMB2LOCK adds each granted byte-range lock to both the file lock list and the lock list of the connection which handled the request. The final close and durable handle paths,...

CVE-2026-64389 ksmbd: validate NTLMv2 response before updating session key

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate NTLMv2 response before updating session key ksmbdauthntlmv2 derives the NTLMv2 session key into sess-sesskey before it verifies the NTLMv2 response. ksmbddecodentlmsspauthblob then continues into KEYXCH even when...