CVE-2026-53383

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...

EUVD-2026-45505

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...

CVE-2026-53383

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...

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-...

PT-2026-61333

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix durable reconnect error path file lifetime After a durable reconnect succeeds, ksmbd reopen durable fd republishes the same ksmbd file into the session volatile-id table. If smb2 open then takes a later error path,...

PT-2026-61457

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A null pointer dereference exists in the proc show files function within the ksmbd module. This occurs when an SMB2 client opens a file using a durable v2 handle and then performs an SMB...

PT-2026-61458

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A null pointer dereference exists in the ksmbd module. During durable-handle session teardown, the session fd check function sets op-conn to NULL for matching opinfo entries, but these...

PT-2026-61088

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ksmbd module during the handling of SMB2 compound requests. The smb2 check user session function fails to verify if a session is in the SMB2 SESSION VALID state fo...

PT-2026-61226

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds read exists in the smb check perm dacl function within the ksmbd module. This issue occurs during ACE-walk loops when a transposed bounds check fails to properly validat...

PT-2026-61456

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A memory leak exists in the ksmbd module within the set posix acl entries dacl function. The issue occurs when the system detects a DACL Discretionary Access Control List size overflow...

SUSE CVE-2026-53046

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free from async crypto on Qualcomm crypto engine ksmbdcryptmessage sets a NULL completion callback on AEAD requests and does not handle the -EINPROGRESS return code from async hardware crypto engines like the...

Linux Distros Unpatched Vulnerability : CVE-2026-53271

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: fix NULL-deref of opinfo-conn in oplock/lease break notifiers smb2oplockbreaknoti and smb2leasebreaknoti read opinfo-conn into a local with neither...

SUSE CVE-2026-53198

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free of a deferred filelock on double SMB2CANCEL A deferred byte-range lock an SMB2LOCK that blocks registers an async work on conn-asyncrequests via setupasyncwork, with cancelfn = smb2removeblockedlock and...

CVE-2026-53198

A flaw was found in ksmbd, a Linux kernel module that provides an in-kernel SMB server. An authenticated SMB client can trigger a use-after-free vulnerability by sending a double SMB2CANCEL request for the same asynchronous operation. This can lead to memory corruption, potentially allowing an...

CVE-2026-53010

A flaw was found in the Linux kernel's ksmbd component. During a durable reconnect process in the smb2open function, a reference to a durable file descriptor is prematurely dropped. This can lead to a use-after-free vulnerability, potentially resulting in system instability or a denial of service...

CVE-2026-53271

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix NULL-deref of opinfo-conn in oplock/lease break notifiers smb2oplockbreaknoti and smb2leasebreaknoti read opinfo-conn into a local with neither READONCE nor a NULL check. Both run from oplockbreak after opinfogetlist h...

CVE-2026-53198

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free of a deferred filelock on double SMB2CANCEL A deferred byte-range lock an SMB2LOCK that blocks registers an async work on conn-asyncrequests via setupasyncwork, with cancelfn = smb2removeblockedlock and...

UBUNTU-CVE-2026-53198

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free of a deferred filelock on double SMB2CANCEL A deferred byte-range lock an SMB2LOCK that blocks registers an async work on conn-asyncrequests via setupasyncwork, with cancelfn = smb2removeblockedlock and...