GHSA-2XF4-CG6J-VHGQ symfony/polyfill-intl-idn: xn-- labels with ASCII-only Punycode payloads are treated as equivalent to their decoded form

Description symfony/polyfill-intl-idn provides a userland implementation of idntoutf8 and idntoascii for runtimes that lack the intl extension. Its Idn::process method decodes labels prefixed with xn-- using Punycode but never enforces the validity criterion added in UTS 46 revision 33 Section 4...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: ksmbd: It is required that the ACE size be of a minimum value in smbcheckpermdacl. Both ACE-walking loops in smbcheckpermdacl only protect against a remaining buffer being undersized, but not against an ACE whose declared ace-siz...

Astra Linux - уязвимость в linux-6.1, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: ksmbd: corrected the incorrect validation of the numaces field in smbacl. The parsedcal function validates numaces to allocate an array of posixacestatearray. If numaces exceeds ULONGMAX / sizeofstruct smbace++, it results in an...

SUSE CVE-2026-43490

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate inherited ACE SID length smbinheritdacl walks the parent directory DACL loaded from the security descriptor xattr. It verifies that each ACE contains the fixed SID header before using it, but does not verify that...

CVE-2026-43490

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate inherited ACE SID length smbinheritdacl walks the parent directory DACL loaded from the security descriptor xattr. It verifies that each ACE contains the fixed SID header before using it, but does not verify that...

CVE-2026-43490 ksmbd: validate inherited ACE SID length

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate inherited ACE SID length smbinheritdacl walks the parent directory DACL loaded from the security descriptor xattr. It verifies that each ACE contains the fixed SID header before using it, but does not verify that...

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 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 are security vulnerabilities in the Linux kernel. These vulnerabilities stem from the fact that ksmbd does not verify the SID length of inherited ACEs in the...

SUSE CVE-2026-43350

In the Linux kernel, the following vulnerability has been resolved: smb: client: require a full NFS mode SID before reading mode bits parsedacl treats an ACE SID matching sidunixNFSmode as an NFS mode SID and reads sid.subauth2 to recover the mode bits. That assumes the ACE carries three...

Linux kernel smb_check_perm_dacl function out-of-bounds read vulnerability

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. The Linux kernel suffers from an out-of-bounds read vulnerability. The vulnerability stems from insufficient ACE size validation in the smbcheckpermdacl function of ksmbd, whic...

EUVD-2026-28634

In the Linux kernel, the following vulnerability has been resolved: smb: client: require a full NFS mode SID before reading mode bits parsedacl treats an ACE SID matching sidunixNFSmode as an NFS mode SID and reads sid.subauth2 to recover the mode bits. That assumes the ACE carries three...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: media: ivsc: Fixed a crash during shutdown due to missing meicldevdisable calls. Both the ACE and CSI drivers lack a meicldevdisable call in their remove function. This causes the meicl client to remain in the meidevice-filelist...

SUSE CVE-2026-31704

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use checkaddoverflow to prevent u16 DACL size overflow setposixaclentriesdacl and setntacldacl accumulate ACE sizes in u16 variables. When a file has many POSIX ACL entries, the accumulated size can wrap past 65535, causin...

CVE-2026-31709

A flaw was found in the Linux kernel's Server Message Block SMB client, specifically within the cifsacl functionality. A malicious SMB server could provide a malformed Discretionary Access Control List DACL that claims to contain more Access Control Entries ACEs than are actually present. This...

CVE-2026-31712

In the Linux kernel, the following vulnerability has been resolved: ksmbd: require minimum ACE size in smbcheckpermdacl Both ACE-walk loops in smbcheckpermdacl only guard against an under-sized remaining buffer, not against an ACE whose declared ace-size is smaller than the struct it claims to...

CVE-2026-31704

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use checkaddoverflow to prevent u16 DACL size overflow setposixaclentriesdacl and setntacldacl accumulate ACE sizes in u16 variables. When a file has many POSIX ACL entries, the accumulated size can wrap past 65535, causin...

EUVD-2026-26521

In the Linux kernel, the following vulnerability has been resolved: ksmbd: require minimum ACE size in smbcheckpermdacl Both ACE-walk loops in smbcheckpermdacl only guard against an under-sized remaining buffer, not against an ACE whose declared ace-size is smaller than the struct it claims to...

CVE-2026-31712

In the Linux kernel, the following vulnerability has been resolved: ksmbd: require minimum ACE size in smbcheckpermdacl Both ACE-walk loops in smbcheckpermdacl only guard against an under-sized remaining buffer, not against an ACE whose declared ace-size is smaller than the struct it claims to...

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...

CVE-2026-31712

In the Linux kernel, the following vulnerability has been resolved: ksmbd: require minimum ACE size in smbcheckpermdacl Both ACE-walk loops in smbcheckpermdacl only guard against an under-sized remaining buffer, not against an ACE whose declared ace-size is smaller than the struct it claims to...