smb: client: fix use-after-free in crypt_message when using async crypto

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Moderate: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 9.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-000189)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000189 advisory. An issue was discovered in the Linux kernel before 5.0.10. SMB2negotiate in fs/cifs/smb2pdu.c has an out- of-bounds read because data structures are incompletely...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-000296)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000296 advisory. An issue was discovered in the Linux kernel before 5.0.10. SMB2read in fs/cifs/smb2pdu.c has a use-after- free. NOTE: this was not fixed correctly in 5.0.10; see the...

PT-2026-27647

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the SMB2 implementation of the Linux kernel where uninitialized variables within the smb2 unlink function can lead to system crashes oops. Specifically, if SMB2 open ini...

PT-2026-8213

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A memory leak exists in the smb2 open file function within the SMB/client component of the Linux kernel. The issue occurs when directories are exported as read-only, and a CIFS mount is...

Unity Linux 20.1060a Security Update: kernel (UTSA-2025-993135)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-993135 advisory. In the Linux kernel, the following vulnerability has been resolved: cifs: Fix warning and UAF when destroy the MR list If the MR allocate failed, the MR recovery wor...

EUVD-2023-60381

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix lost destroy smbd connection when MR allocate failed If the MR allocate failed, the smb direct connection info is NULL, then smbddestroy will directly return, then the connection info will be leaked. Let's set the smb...

EUVD-2023-60391

In the Linux kernel, the following vulnerability has been resolved: ksmbd: avoid out of bounds access in decodepreauthctxt Confirm that the accessed pnegctxt-HashAlgorithms address sits within the SMB request boundary; deassemblenegcontexts only checks that the eight byte smb2negcontext header +...

CVE-2023-54250

In the Linux kernel, the following vulnerability has been resolved: ksmbd: avoid out of bounds access in decodepreauthctxt Confirm that the accessed pnegctxt-HashAlgorithms address sits within the SMB request boundary; deassemblenegcontexts only checks that the eight byte smb2negcontext header +...

CVE-2023-54260

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix lost destroy smbd connection when MR allocate failed If the MR allocate failed, the smb direct connection info is NULL, then smbddestroy will directly return, then the connection info will be leaked. Let's set the smb...

CVE-2023-54203

Summary: CVE-2023-54203 affects the Linux kernel ksmbd path in SMB2/SMB1 negotiation handling. When an SMB1 mount negotiation is processed as SMB2, KASAN detects a slab-out-of-bounds in init_smb2_rsp_hdr, leading to a potential crash or memory access issue. The fix adds explicit SMB1 server opera...

Exploit for Improper Restriction of Operations within the Bounds of a Memory Buffer in Microsoft

Microsoft Windows SMBGhost Vulnerability Checker - CVE-2020-07...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from out-of-bounds access to the ksmbd initsmb2rsphdr function...

PT-2025-54087

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw within the CIFS implementation, specifically in the cifs oplock break function. A race condition can occur with deferred close operations and lease break...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from insufficient validation of SMB request boundaries, which could lead to out-of-bounds access...

Linux Distros Unpatched Vulnerability : CVE-2023-54260

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - cifs: Fix lost destroy smbd connection when MR allocate failed If the MR allocate failed, the smb direct connection info is NULL, then smbddestroy will directly...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992211)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992211 advisory. In the Linux kernel, the following vulnerability has been resolved: cifs: Fix warning and UAF when destroy the MR list If the MR allocate failed, the MR recovery wor...

CVE-2023-53990

In the Linux kernel, the following vulnerability has been resolved: SMB3: Add missing locks to protect deferred close file list cifsdeldeferredclose function has a critical section which modifies the deferred close file list. We must acquire deferredlock before calling cifsdeldeferredclose functi...

SUSE CVE-2023-54076

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix missed ses refcounting Use new cifssmbsesincrefcount helper to get an active reference of @ses and @ses-dfsrootses if set. This will prevent @ses-dfsrootses of being put in the next call to cifsputsmbses and thus...