CVE-2026-43490

The CVE-2026-43490 entry concerns the Linux kernel ksmbd SMB server. The flaw arises in smb_inherit_dacl() where the code validates a fixed SID header but not the variable-length SID described by sid.num_subauth, allowing a malformed inheritable ACE to advertise more subauthorities than present. ...

PT-2026-41267

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the ksmbd module, the smb inherit dacl function fails to verify that the variable-length Security Identifier SID described by sid.num subauth is fully contained within the Access...

Linux Distros Unpatched Vulnerability : CVE-2026-43490

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: validate inherited ACE SID length smbinheritdacl walks the parent directory DACL loaded from the security descriptor xattr. It verifies that each ACE...

Updated ntfs-3g packages fix security vulnerability

In NTFS-3G 2022.10.3 before 2026.2.25, a heap buffer overflow exists in ntfsbuildpermissionsposix in acls.c that allows an attacker to corrupt heap memory in the SUID-root ntfs-3g binary by crafting a malicious NTFS image. The overflow is triggered on the READ path stat, readdir, open when...

CVE-2026-31709

In the Linux kernel, the following vulnerability has been resolved: smb: client: validate the whole DACL before rewriting it in cifsacl buildsecdesc and idmodetocifsacl derive a DACL pointer from a server-supplied dacloffset and then use the incoming ACL to rebuild the chmod/chown security...

CVE-2026-31709 smb: client: validate the whole DACL before rewriting it in cifsacl

In the Linux kernel, the following vulnerability has been resolved: smb: client: validate the whole DACL before rewriting it in cifsacl buildsecdesc and idmodetocifsacl derive a DACL pointer from a server-supplied dacloffset and then use the incoming ACL to rebuild the chmod/chown security...

CVE-2026-31709

In the Linux kernel SMB client (cifsacl), CVE-2026-31709 arises from insufficient validation of a server-provided DACL when rewriting security descriptors. The fix extends structural validation to ensure the DACL header, size, and per-ACE bounds are checked before any rewrite paths (replace_sids_...

CVE-2026-31709

In the Linux kernel, the following vulnerability has been resolved: smb: client: validate the whole DACL before rewriting it in cifsacl buildsecdesc and idmodetocifsacl derive a DACL pointer from a server-supplied dacloffset and then use the incoming ACL to rebuild the chmod/chown security...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from incomplete DACL validation in the functions buildsecdesc and idmodetocifsacl. This vulnerability...

USN-8192-2 ntfs-3g vulnerabilities

USN-8192-1 fixed vulnerabilities in NTFS-3G. This update provides the corresponding update to Ubuntu 26.04 LTS. Original advisory details: Jeffrey Bencteux discovered that NTFS-3G incorrectly handled certain UTF-8 sequences. An attacker could use this issue to cause NTFS-3G to crash, resulting in...

SUSE CVE-2026-31611

In the Linux kernel, the following vulnerability has been resolved: ksmbd: require 3 sub-authorities before reading subauth2 parsedacl compares each ACE SID against sidunixNFSmode and on match reads sid.subauth2 as the file mode. If sidunixNFSmode is the prefix S-1-5-88-3 with numsubauth = 2 then...

Linux Distros Unpatched Vulnerability : CVE-2026-31611

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: require 3 sub-authorities before reading subauth2 parsedacl compares each ACE SID against sidunixNFSmode and on match reads sid.subauth2 as the file mode...

CVE-2026-31611

In the Linux kernel, the following vulnerability has been resolved: ksmbd: require 3 sub-authorities before reading subauth2 parsedacl compares each ACE SID against sidunixNFSmode and on match reads sid.subauth2 as the file mode. If sidunixNFSmode is the prefix S-1-5-88-3 with numsubauth = 2 then...

EUVD-2026-25504

In the Linux kernel, the following vulnerability has been resolved: ksmbd: require 3 sub-authorities before reading subauth2 parsedacl compares each ACE SID against sidunixNFSmode and on match reads sid.subauth2 as the file mode. If sidunixNFSmode is the prefix S-1-5-88-3 with numsubauth = 2 then...

CVE-2026-31611

In the Linux kernel, the following vulnerability has been resolved: ksmbd: require 3 sub-authorities before reading subauth2 parsedacl compares each ACE SID against sidunixNFSmode and on match reads sid.subauth2 as the file mode. If sidunixNFSmode is the prefix S-1-5-88-3 with numsubauth = 2 then...

PT-2026-34963

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the ksmbd module, the parse dacl function compares each Access Control Entry ACE Security Identifier SID against sid unix NFS mode. If sid unix NFS mode is the prefix S-1-5-88-3 with...

SUSE CVE-2026-31432

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix OOB write in QUERYINFO for compound requests When a compound request such as READ + QUERYINFOSecurity is received, and the first command READ consumes most of the response buffer, ksmbd could write beyond the allocated...

CVE-2026-31432

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix OOB write in QUERYINFO for compound requests When a compound request such as READ + QUERYINFOSecurity is received, and the first command READ consumes most of the response buffer, ksmbd could write beyond the allocated...

CVE-2026-31432

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix OOB write in QUERYINFO for compound requests When a compound request such as READ + QUERYINFOSecurity is received, and the first command READ consumes most of the response buffer, ksmbd could write beyond the allocated...

CVE-2026-31432 ksmbd: fix OOB write in QUERY_INFO for compound requests

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix OOB write in QUERYINFO for compound requests When a compound request such as READ + QUERYINFOSecurity is received, and the first command READ consumes most of the response buffer, ksmbd could write beyond the allocated...