Astra Linux – Vulnerability found in Linux 6.1, Linux 5.10, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: cifs: Fixed a UAF in cifsdemultiplexthread There is a UAF when performing xfstests on cifs: BUG: KASAN: Use-after-free in smb2isnetworknamedeleted+0x27/0x160 Reading a size 4 value at address ffff88810103fc08 by task cifsd/923...

PT-2026-106504

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the SMB client. The clean demultiplex info function cancels the server-echo delayed work but fails to cancel server-reconnect. This can lead to a...

Unity Linux 20.1050e / 20.1060e Security Update: kernel (UTSA-2026-007234)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007234 advisory. In the Linux kernel, the following vulnerability has been resolved: cifs: Fix UAF in cifsdemultiplexthread There is a UAF when xfstests on cifs: BUG: KASAN:...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-006728)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006728 advisory. In the Linux kernel, the following vulnerability has been resolved: cifs: Fix UAF in cifsdemultiplexthread There is a UAF when xfstests on cifs: BUG: KASAN:...

Linux SMB Client Heap Buffer Overflow DoS

The vulnerability of the cifsdemultiplexthread function in the fs/smb/client/connect.c module, which is part of the SMB client support in Linux kernel, is related to improper memory release memory leak. Exploiting this vulnerability could allow an attacker to cause a service failure...

Linux SMB Client Heap Buffer Overflow DoS

The vulnerability of the cleandemultiplexinfo function in the fs/smb/client/connect.c module of the SMB client support library in Linux operating systems is related to improper resource locking. Exploiting this vulnerability could allow an attacker to cause a service failure...

cifs: Fix UAF in cifs_demultiplex_thread()

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CLSA-2025-1755707175 kernel: Fix of CVE-2023-52572

cifs: Fix UAF in cifsdemultiplexthread CVE-2023-52572...

kernel: Fix of CVE-2023-52572

cifs: Fix UAF in cifsdemultiplexthread CVE-2023-52572...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: scsi: target: Fix WRITESAME No Data Buffer crash In newer version of the SBC specs, we have a NDOB bit that indicates there is no data buffer that gets written out. If this bit is set using commands like...

kernel: smb: client: Fix use-after-free of network namespace.

A flaw was found in the Linux kernel's Server Message Block SMB client. Improper reference counting allows kernel sockets to persist after their associated network namespace has been released. A local attacker with permission to create and destroy network namespaces—such as in containerized...

Linux kernel CIFS Code Execution

The vulnerability of the cifsdemultiplexthread function in the cifs component of the Linux kernel lies in the use of memory after it is freed. Exploiting this vulnerability allows a remote attacker to execute arbitrary code...

SUSE CVE-2023-52572

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix UAF in cifsdemultiplexthread There is a UAF when xfstests on cifs: BUG: KASAN: use-after-free in smb2isnetworknamedeleted+0x27/0x160 Read of size 4 at addr ffff88810103fc08 by task cifsd/923 CPU: 1 PID: 923 Comm: cifsd...

DEBIAN-CVE-2023-52572

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix UAF in cifsdemultiplexthread There is a UAF when xfstests on cifs: BUG: KASAN: use-after-free in smb2isnetworknamedeleted+0x27/0x160 Read of size 4 at addr ffff88810103fc08 by task cifsd/923 CPU: 1 PID: 923 Comm: cifsd...

CVE-2023-52572

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix UAF in cifsdemultiplexthread There is a UAF when xfstests on cifs: BUG: KASAN: use-after-free in smb2isnetworknamedeleted+0x27/0x160 Read of size 4 at addr ffff88810103fc08 by task cifsd/923 CPU: 1 PID: 923 Comm: cifsd...

AZL-54137 CVE-2023-52572 affecting package kernel for versions less than 5.15.182.1-1

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix UAF in cifsdemultiplexthread There is a UAF when xfstests on cifs: BUG: KASAN: use-after-free in smb2isnetworknamedeleted+0x27/0x160 Read of size 4 at addr ffff88810103fc08 by task cifsd/923 CPU: 1 PID: 923 Comm: cifsd...

UBUNTU-CVE-2023-52572

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix UAF in cifsdemultiplexthread There is a UAF when xfstests on cifs: BUG: KASAN: use-after-free in smb2isnetworknamedeleted+0x27/0x160 Read of size 4 at addr ffff88810103fc08 by task cifsd/923 CPU: 1 PID: 923 Comm: cifsd...

PT-2023-8800

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.1.0-rc4+ Description The issue is related to a use-after-free UAF vulnerability in the cifs demultiplex thread function. This vulnerability can be exploited by an attacker to potentially execute arbitrary code...