SUSE CVE-2026-23427

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in durable v2 replay of active file handles parsedurablehandlecontext unconditionally assigns dhinfo-fp-conn to the current connection when handling a DURABLEREQV2 context with SMB2FLAGSREPLAYOPERATION...

EUVD-2026-18659

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in durable v2 replay of active file handles parsedurablehandlecontext unconditionally assigns dhinfo-fp-conn to the current connection when handling a DURABLEREQV2 context with SMB2FLAGSREPLAYOPERATION...

EUVD-2026-18661

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free of shareconf in compound request smb2getksmbdtcon reuses work-tcon in compound requests without validating tcon-tstate. ksmbdtreeconnlookup checks tstate == TREECONNECTED on the initial lookup path, but...

CVE-2026-23428

A flaw was found in ksmbd, a component of the Linux kernel. This use-after-free vulnerability occurs during the processing of Server Message Block version 2 SMB2 compound requests. An attacker could exploit this by sending a specially crafted sequence of SMB2 commands, causing the system to attem...

UBUNTU-CVE-2026-23428

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free of shareconf in compound request smb2getksmbdtcon reuses work-tcon in compound requests without validating tcon-tstate. ksmbdtreeconnlookup checks tstate == TREECONNECTED on the initial lookup path, but...

CVE-2026-23428

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free of shareconf in compound request smb2getksmbdtcon reuses work-tcon in compound requests without validating tcon-tstate. ksmbdtreeconnlookup checks tstate == TREECONNECTED on the initial lookup path, but...

CVE-2026-23427 ksmbd: fix use-after-free in durable v2 replay of active file handles

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in durable v2 replay of active file handles parsedurablehandlecontext unconditionally assigns dhinfo-fp-conn to the current connection when handling a DURABLEREQV2 context with SMB2FLAGSREPLAYOPERATION...

CVE-2026-23427

Summary: CVE-2026-23427 affects ksmbd in the Linux kernel and has been fixed to address a use-after-free in durable v2 replay of active SMB file handles. The root cause is that parse_durable_handle_context() unconditionally assigns dh_info->fp->conn to the current connection when handling D...

CVE-2026-23428 ksmbd: fix use-after-free of share_conf in compound request

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free of shareconf in compound request smb2getksmbdtcon reuses work-tcon in compound requests without validating tcon-tstate. ksmbdtreeconnlookup checks tstate == TREECONNECTED on the initial lookup path, but...

OESA-2026-1832 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbdtreeconnectput under concurrency Under high concurrency, A tree-connection object tcon is freed on a disconnect path while...

ROS-20260403-73-0002

A vulnerability in the smb2sesssetup function of the fs/smb/server/smb2pdu.c module of the ksmbd component of the Linux operating system kernel is related to the ability to use memory after it has been freed. Exploitation of the vulnerability could allow an attacker acting remotely to cause a...

PT-2026-30123

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.0.0-rc3+ Description The Linux kernel contains a use-after-free flaw within the ksmbd component, specifically in how it handles share configurations during compound requests. The smb2 get ksmbd tcon function...

PT-2026-30122

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.0.0-rc3+ Description The Linux kernel contained a use-after-free flaw within the ksmbd component, specifically in the handling of durable v2 replay operations involving active file handles. The parse durable...

CVE-2026-23364

A flaw was found in ksmbd, a Linux kernel module. This vulnerability stems from the use of a non-constant time memory comparison function when verifying Message Authentication Codes MACs. A remote attacker could exploit this timing difference to conduct a timing attack, potentially leading to the...

SUSE CVE-2026-23364

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Compare MACs in constant time To prevent timing attacks, MAC comparisons need to be constant-time. Replace the memcmp with the correct function, cryptomemneq...

CVE-2026-23364

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Compare MACs in constant time To prevent timing attacks, MAC comparisons need to be constant-time. Replace the memcmp with the correct function, cryptomemneq...

PT-2026-34275

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds write exists in ksmbd when processing compound requests, such as READ combined with QUERY INFOSecurity. If the initial command consumes most of the response buffer, ksmb...

Linux Distros Unpatched Vulnerability : CVE-2026-23364

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: Compare MACs in constant time To prevent timing attacks, MAC comparisons need to be constant-time. Replace the memcmp with the correct function,...

ROS-20260324-73-0002

A vulnerability in the generateencryptionkey function of the ksmbd component of the Linux kernel is related to the dereferencing of a NULL pointer. Exploitation of the vulnerability could allow an attacker to cause a denial of service...

The vulnerability of the ksmbd_tree_conn_lookup() function in the fs/ksmbd/mgmt/tree_connect.c module of the SMB-server kernel subsystem of the Linux operating system allows a hacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the ksmbdtreeconnlookup function in the fs/ksmbd/mgmt/treeconnect.c module of the SMB-server subsystem of the Linux operating system is related to the reutilization of previously freed memory. Exploiting this vulnerability could allow an attacker to compromise the...