Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fixed a potential out-of-bounds write issue in getfileallinfo for compound requests. When a compound request consists of QUERYDIRECTORY + QUERYINFO FILEALLINFORMATION, and the first command consumes nearly the entire...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been fixed: ksmbd: Fixed an out-of-bounds write issue in smb2getea. smb2getea applies a 4-byte alignment padding using memset after writing each EA entry. The bounds check on buffreelen is performed before the memcpy operation, but the...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: ksmbd: Fixed an issue where shareconf was freed after use, in compound requests. smb2getksmbdtcon reuses work-tcon in compound requests without validating tcon-tstate. ksmbdtreeconnlookup checks that tstate is equal to...

CVE-2026-53383

The CVE-2026-53383 issue affects the Linux kernel’s ksmbd component where a COMPOUND request could bypass validation of the session state. Specifically, smb2_check_user_session() reused work->sess for operations beyond the first in a COMPOUND, validating only SessionId and not rechecking work-...

CVE-2026-53383 ksmbd: reject non-VALID session in compound request branch

In the Linux kernel, the following vulnerability has been resolved: ksmbd: reject non-VALID session in compound request branch smb2checkusersession takes a shortcut for any operation that is not the first in a COMPOUND request: it reuses work-sess the session bound by the first operation and...

CVE-2026-53383 ksmbd: reject non-VALID session in compound request branch

In the Linux kernel, the following vulnerability has been resolved: ksmbd: reject non-VALID session in compound request branch smb2checkusersession takes a shortcut for any operation that is not the first in a COMPOUND request: it reuses work-sess the session bound by the first operation and...

PT-2026-61088

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A remote NULL-pointer dereference exists in the ksmbd component of the Linux kernel. The smb2 check user session function fails to re-verify that a session state is SMB2 SESSION VALID fo...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fixed the OOB write issue 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 might write beyond...

SUSE CVE-2026-31705

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out-of-bounds write in smb2getea EA alignment smb2getea applies 4-byte alignment padding via memset after writing each EA entry. The bounds check on buffreelen is performed before the value memcpy, but the alignment...

CVE-2026-31705

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out-of-bounds write in smb2getea EA alignment smb2getea applies 4-byte alignment padding via memset after writing each EA entry. The bounds check on buffreelen is performed before the value memcpy, but the alignment...

EUVD-2026-26514

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out-of-bounds write in smb2getea EA alignment smb2getea applies 4-byte alignment padding via memset after writing each EA entry. The bounds check on buffreelen is performed before the value memcpy, but the alignment...

CVE-2026-31705 ksmbd: fix out-of-bounds write in smb2_get_ea() EA alignment

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out-of-bounds write in smb2getea EA alignment smb2getea applies 4-byte alignment padding via memset after writing each EA entry. The bounds check on buffreelen is performed before the value memcpy, but the alignment...

CVE-2026-31705 ksmbd: fix out-of-bounds write in smb2_get_ea() EA alignment

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out-of-bounds write in smb2getea EA alignment smb2getea applies 4-byte alignment padding via memset after writing each EA entry. The bounds check on buffreelen is performed before the value memcpy, but the alignment...

CVE-2026-31705

The CVE-2026-31705 issue affects the ksmbd component of the Linux kernel, where an out-of-bounds write occurs in smb2_get_ea() during EA alignment padding. After writing each EA entry, a 4-byte alignment padding is applied with memset() unconditionally, potentially overwriting adjacent kernel hea...

Linux Kernel Security Vulnerabilities

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 the smb2getea function’s memset operation, where the remaining space after the EA alignment is no...

CVE-2026-31705: Out-of-bounds Write

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out-of-bounds write in smb2getea EA alignment smb2getea applies 4-byte alignment padding via memset after writing each EA entry. The bounds check on buffreelen is performed before the value memcpy, but the alignment...

ksmbd: fix potencial OOB in get_file_all_info() for compound requests

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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...

EUVD-2026-24640

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...

EUVD-2026-24641

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix potencial OOB in getfileallinfo for compound requests When a compound request consists of QUERYDIRECTORY + QUERYINFO FILEALLINFORMATION and the first command consumes nearly the entire maxtranssize, getfileallinfo woul...