EUVD-2026-59079

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use opener credentials for FSCTL mutations SETSPARSE, SETZERODATA and SETCOMPRESSION operate on an open SMB handle but call VFS xattr, fallocate or fileattr helpers with the current ksmbd worker credentials. Those helpers...

CVE-2026-68457 ksmbd: use opener credentials for FSCTL mutations

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use opener credentials for FSCTL mutations SETSPARSE, SETZERODATA and SETCOMPRESSION operate on an open SMB handle but call VFS xattr, fallocate or fileattr helpers with the current ksmbd worker credentials. Those helpers...

CVE-2026-68457 ksmbd: use opener credentials for FSCTL mutations

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use opener credentials for FSCTL mutations SETSPARSE, SETZERODATA and SETCOMPRESSION operate on an open SMB handle but call VFS xattr, fallocate or fileattr helpers with the current ksmbd worker credentials. Those helpers...

Linux Distros Unpatched Vulnerability : CVE-2026-74494

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: reject repeated SMB2 NEGOTIATE requests Unauthenticated client can send multiple successful SMB2 NEGOTIATE requests on one connection before SESSIONSETUP...

Linux Distros Unpatched Vulnerability : CVE-2026-72382

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: reject undersized DACLs before parsing ACEs parsedacl limits the attacker-controlled ACE count by comparing it with the number of minimal ACEs that fit i...

PT-2026-72610

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free of conn-preauth info in concurrent SMB2 NEGOTIATE conn-preauth info is shared connection state struct preauth integrity info, kmalloc-96 that is allocated and freed by the SMB2 NEGOTIATE handler and read...

PT-2026-72569

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free of fp-owner.name in durable handle owner check Two concurrent SMB2 durable reconnects DH2C/DHnC on the same persistent id race the fp-owner.name compare-read in ksmbd vfs compare durable owner against th...

PT-2026-72946

In the Linux kernel, the following vulnerability has been resolved: ksmbd: reject repeated SMB2 NEGOTIATE requests Unauthenticated client can send multiple successful SMB2 NEGOTIATE requests on one connection before SESSION SETUP. While the connection is in KSMBD SESS NEED SETUP, smb2 handle...

PT-2026-72233

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix stack buffer overflow in multichannel session-key copy Commit 4b706360ffb7 "ksmbd: fix multichannel binding and enforce channel limit" moved the binding-path session key out of the session-wide sess-sess key CIFS KEY...

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...

Linux Distros Unpatched Vulnerability : CVE-2026-74522

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: fix use-after-free in closefiletableids A ksmbdfile can remain alive after logical close while another session holds a temporary reference obtained throu...

PT-2026-72680

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in same client has lease same client has lease returns an opinfo pointer from ci-m op list after dropping ci-m lock without taking a reference. smb grant oplock then dereferences that pointer in copy lea...

PT-2026-72570

In the Linux kernel, the following vulnerability has been resolved: ksmbd: reject undersized DACLs before parsing ACEs parse dacl limits the attacker-controlled ACE count by comparing it with the number of minimal ACEs that fit in the DACL size. The DACL size field is 16 bits, but the expression...

PT-2026-72169

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the ksmbd module, the SET SPARSE, SET ZERO DATA, and SET COMPRESSION operations use current worker credentials instead of the credentials captured when the SMB handle was opened. This...

PT-2026-72974

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in close file table ids A ksmbd file can remain alive after logical close while another session holds a temporary reference obtained through ksmbd lookup fd inode. ksmbd close fd currently marks the file...

Linux Distros Unpatched Vulnerability : CVE-2026-68457

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: use opener credentials for FSCTL mutations SETSPARSE, SETZERODATA and SETCOMPRESSION operate on an open SMB handle but call VFS xattr, fallocate or...

The vulnerability of the ksmbd component in the Linux operating system’s kernel allows a hacker to trigger a service failure.

The vulnerability of the ksmbd component in the Linux operating system’s kernel is related to the lack of data security mechanisms. Exploiting this vulnerability can allow an attacker to cause service failures...

SUSE CVE-2026-68381

In the Linux kernel, the following vulnerability has been resolved: ksmbd: pin conn during async oplock break notification smb2oplockbreaknoti and smb2leasebreaknoti store a ksmbdconn pointer in an async ksmbdwork and then queue that work on ksmbd-io. The work only increments conn-rcount, which...

CVE-2026-68431

A flaw was found in ksmbd in the Linux kernel. When handling Server Message Block version 2 SMB2 transform requests, the system fails to validate the minimum Protocol Data Unit PDU size. An unauthenticated remote attacker can send a specially crafted, short transform packet, bypassing security...