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. This vulnerability stems from the parsedacl function in SMB clients, which treats ACEs matching sidunixNFSmode as NFS mo...

CVE-2026-31712

CVE-2026-31712 affects ksmbd in the Linux kernel. A crafted DACL with an undersized ACE can bypass validation in smb_check_perm_dacl(), causing an out-of-bounds read during a subsequent file CREATE. The issue arises when ace->size and the ACE layout permit reading access_req (offset 4) and sid...

ksmbd: require 3 sub-authorities before reading sub_auth[2]

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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...

DEBIAN-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...

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...

CVE-2026-31611

CVE-2026-31611 affects the Linux kernel's ksmbd path. The flaw occurs in parse_dacl() when comparing ACE SIDs to sid_unix_NFS_mode and subsequently reading sid.sub_auth[2] as the file mode. If the SID has only two sub-authorities, an ACE placed at the end of the ACL can cause sid.sub_auth[2] to r...

CVE-2026-31611 ksmbd: require 3 sub-authorities before reading sub_auth[2]

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...

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...

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...