Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: smb: client: fixed potential OOBs in smb2ParseContexts Validated offsets and lengths before dereferencing to create contexts in smb2ParseContexts. This fix addresses the following OOPs when accessing invalid create contexts fr...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ksmbd: A missing return value check bug has been fixed. In the smb2sendinterimresp function, if ksmbdallocworkstruct fails to allocate a node, it returns a NULL pointer to the inwork pointer. This can lead to an illegal memory...

Astra Linux – Vulnerability in Linux 5.15

A issue was discovered in ksmbd within the Linux kernel versions 5.15 through 5.19, prior to 5.19.2. There is an out-of-bounds read and an OOPS error for SMB2write, when a large length is present in the zero DataOffset case. source-iocs-preserved const=SMB2WRITE...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ksmbd: a out-of-bounds error in initsmb2rsphdr has been fixed. If a client sends a SMB2 negotiate request and then a SMB1 negotiate request, initsmb2rsphdr is called for the SMB1 negotiate request, since needneg is set to false...

Astra Linux – Vulnerability in Wireshark

The SMB2 protocol dissector infinite loop in Wireshark versions 4.6.0 to 4.6.4, and 4.4.0 to 4.4.14 allows for denial of service attacks...

Astra Linux – Vulnerability in Wireshark

The SMB2 protocol dissector in Wireshark versions 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows for denial of service attacks...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fixed a slab-out-of-bounds issue in smb2allocaterspbuf. If -ProtocolId is set to SMB2 TRANSFORMPROTONUM, the validation of the request size could be skipped. If the request size is smaller than sizeofstruct smb2queryinfore...

Astra Linux – Vulnerability in Linux 5.15

A issue was discovered in ksmbd within the Linux kernel versions 5.15 through 5.18, prior to 5.18.18. fs/ksmbd/smb2pdu.c lacks length validation in the non-padding case of smb2write...

Astra Linux – Vulnerability in Linux 5.15

A issue was discovered in ksmbd within the Linux kernel versions 5.15 through 5.19, prior to 5.19.2. The file fs/ksmbd/smb2misc.c contains an out-of-bounds read and an OOPS error related to the SMB2TREECONNECT function...

Astra Linux – Vulnerability in Linux 5.15

A issue was discovered in ksmbd within the Linux kernel versions 5.15 through 5.19, prior to 5.19.2. The file fs/ksmbd/smb2pdu.c contains a use-after-free condition and an OOPS error related to SMB2TREEDISCONNECT...

WindowsProtocolTestSuites v4.26.9.0

Windows Protocol Test Suites Windows Protocol Test Suites provide interoperability testing against the implementation of Windows open specifications including File Services, Identity Management, Remote Desktop and etc. Originally developed for in-house testing of the Microsoft Open Specifications...

SUSE CVE-2026-72422

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

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: smb: client: Rejected overlapping data areas in SMB2 responses. The commit 53b7c271f06b “smb: client: restrict implied bcc0 exemptions to responses without a data area” limited the implied bcc0 length exception to responses that ...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Rejects repeated SMB2 NEGOTIATE requests An unauthenticated client can send multiple successful SMB2 NEGOTIATE requests on one connection before SESSIONSETUP. While the connection is in KSMBDSESSNEEDSETUP,...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: cifs: preventing use-after-free by freeing the cfile later. In smb2compoundop, there is a potential use-after-free that may lead to difficult debugging issues in the future. This issue was identified during stress testing with th...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Rejects undersized DACLs before parsing ACEs The parsedacl function limits the number of attacker-controlled ACE entries by comparing it with the minimum number of ACE entries that fit within the DACL size. The DACL size...

Titanis v0.9.333

Introduction Titanis is a library of protocol implementations and command line utilities, written in C, for interacting with Windows environments. It uses .NET 8 and is cross-platform Windows and Linux. Some of the protocols implemented: SMB2 MS-SMB2 SMB 2.x and 3.x up to 3.1.1 Message security...

CVE-2026-72422

A flaw was found in ksmbd, the in-kernel SMB3 server for Linux. A remote attacker could exploit a use-after-free vulnerability by sending specially crafted concurrent SMB2 NEGOTIATE requests on the same connection. This could lead to memory corruption, potentially allowing the attacker to execute...

CVE-2026-72381

A flaw was found in ksmbd, the in-kernel SMB3 server for Linux. A remote attacker can exploit a race condition by initiating two concurrent SMB2 durable reconnects with the same persistent ID. This can lead to a use-after-free error, where freed memory is accessed, potentially causing system...

Linux Distros Unpatched Vulnerability : CVE-2026-72422

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 of conn-preauthinfo in concurrent SMB2 NEGOTIATE conn-preauthinfo is shared connection state struct preauthintegrityinfo, kmalloc-96...