Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: cifs: The xid leak in cifscopyfilerange has been fixed. If the file is used by swap, before returning -EOPNOTSUPP, the xid should be freed. Otherwise, the xid will be leaked...

Astra Linux – Vulnerability in Linux 5.10, Linux

A denial-of-service DOS issue was detected in the smb2ioctlqueryinfo function of the Linux kernel, within the fs/cifs/smb2ops.c Common Internet File System. This issue arises due to an incorrect return value from the memdupuser function. This flaw allows a local, privileged attacker with...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

A use-after-free flaw was discovered in the setupasyncwork function in the KSMBD implementation of the in-kernel Samba server and CIFS services in the Linux kernel. This issue could allow an attacker to crash the system by accessing freed resources...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021544)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021544 advisory. In the Linux kernel, the following vulnerability has been resolved: cifs: fix oops during encryption When running xfstests against Azure the following oops occurred ...

CVE-2026-43215

A flaw was found in the Linux kernel's Common Internet File System CIFS implementation. Incorrect locking mechanisms were used for tcon fields, where the cifstcpseslock was applied too broadly instead of more granular locks. This improper locking could lead to concurrency issues within the kernel...

EUVD-2026-27777

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix locking usage for tcon fields We used to use the cifstcpseslock to protect a lot of objects that are not just the server, ses or tcon lists. We later introduced srvlock, seslock and tclock to protect fields within the...

CVE-2026-43215

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix locking usage for tcon fields We used to use the cifstcpseslock to protect a lot of objects that are not just the server, ses or tcon lists. We later introduced srvlock, seslock and tclock to protect fields within the...

CVE-2026-43215 cifs: Fix locking usage for tcon fields

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix locking usage for tcon fields We used to use the cifstcpseslock to protect a lot of objects that are not just the server, ses or tcon lists. We later introduced srvlock, seslock and tclock to protect fields within the...

CVE-2026-43215

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix locking usage for tcon fields We used to use the cifstcpseslock to protect a lot of objects that are not just the server, ses or tcon lists. We later introduced srvlock, seslock and tclock to protect fields within the...

PT-2026-37555

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the CIFS component where cifs tcp ses lock was used to protect various objects, including tcon fields, instead of using more granular locks. This caused unnecessary...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the incorrect setting of the CIFSMOUNTPOSIXPATHS bit when mounting SMB1 under UNIX. This can lead to th...

PT-2026-36090

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the CIFS Common Internet File System component, certain local variables were not properly reinitialized before a request was replayed. This occurred in several code locations where...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-010951)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010951 advisory. In the Linux kernel, the following vulnerability has been resolved: cifs: Fix xid leak in cifscopyfilerange If the file is used by swap, before return -EOPNOTSUPP,...

Unity Linux 20.1050e / 20.1060e Security Update: kernel (UTSA-2026-007339)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007339 advisory. In the Linux kernel, the following vulnerability has been resolved: cifs: parsedfsreferrals: prevent oob on malformed input Malicious SMB server can send invalid rep...

CVE-2026-23303

In the Linux kernel, the following vulnerability has been resolved: smb: client: Don't log plaintext credentials in cifssetcifscreds When debug logging is enabled, cifssetcifscreds logs the key payload and exposes the plaintext username and password. Remove the debug log to avoid exposing...

The vulnerability of the allocate_mr_list() function in the fs/cifs/smbdirect.c module of the Linux kernel file system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the allocatemrlist function in the fs/cifs/smbdirect.c module of the Linux kernel file system is related to the reutilization of previously freed memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and accessibility of t...

Azure Linux 3.0 Security Update: kernel (CVE-2024-49996)

The version of kernel installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-49996 advisory. - In the Linux kernel, the following vulnerability has been resolved: cifs: Fix buffer overflow when parsing N...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002739)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002739 advisory. The Linux kernel before version 4.11 is vulnerable to a NULL pointer dereference in fs/cifs/cifsencrypt.c:setupntlmv2rsp that allows an attacker controlling a CIFS...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002106)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002106 advisory. Race condition in the smbsendrqst function in fs/cifs/transport.c in the Linux kernel before 3.7.2 allows local users to cause a denial of service NULL pointer...

kernel: smb: client: Fix use-after-free in cifs_fill_dirent

A use-after-free flaw was found in cifsfilldirent in fs/cifs/readdir.c in smb client in the Linux Kernel. This flaw could allow an attacker to crash the system due to race problem. This vulnerability could even lead to a kernel information leak problem...