Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: xfrm: Duplicate SPI Handling CVE-2025-39797 kernel: lib/buildid: use kernelread for sleepable context CVE-2026-23002 kernel: futex: Drop CLONETHREAD requirement for private default hash...

Linux Distros Unpatched Vulnerability : CVE-2026-53396

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nfsd: fix posixacl leak and ignored error in nfsd4createfile nfsd4createfile has two bugs in its ACL handling: The return value of nfsd4acltoattr is silently...

CVE-2026-53395

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix dead ACL conflict guard in nfsd4create nfsd4create steals create-crdpacl/crpacl into the local nfsdattrs via the designated initializer, then immediately sets the source pointers to NULL. The subsequent conflict guard...

CVE-2026-53395

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix dead ACL conflict guard in nfsd4create nfsd4create steals create-crdpacl/crpacl into the local nfsdattrs via the designated initializer, then immediately sets the source pointers to NULL. The subsequent conflict guard...

CVE-2026-53395 nfsd: fix dead ACL conflict guard in nfsd4_create

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix dead ACL conflict guard in nfsd4create nfsd4create steals create-crdpacl/crpacl into the local nfsdattrs via the designated initializer, then immediately sets the source pointers to NULL. The subsequent conflict guard...

CVE-2026-53395

Summary (concrete details from provided documents): CVE-2026-53395 affects the Linux kernel NFS server (nfsd). In nfsd4_create, the code steals create->cr_dpacl/cr_pacl into a local nfsd_attrs via a designated initializer and then nils the source pointers. The subsequent conflict guard tests t...

PT-2026-61101

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The nfsd4 create file function contains two issues related to Access Control List ACL handling. First, the return value of the nfsd4 acl to attr function is ignored. If the conversion fr...

UBUNTU-CVE-2026-53244

In the Linux kernel, the following vulnerability has been resolved: VFS: fix possible failure to unlock in nfsd4createfile atomiccreate in fs/namei.c drops the reference to the dentry when it returns an error. This behaviour was imported into dentrycreate so that it will drop the reference if an...

CVE-2026-53244

In the Linux kernel, the following vulnerability has been resolved: VFS: fix possible failure to unlock in nfsd4createfile atomiccreate in fs/namei.c drops the reference to the dentry when it returns an error. This behaviour was imported into dentrycreate so that it will drop the reference if an...

EUVD-2026-39195

In the Linux kernel, the following vulnerability has been resolved: VFS: fix possible failure to unlock in nfsd4createfile atomiccreate in fs/namei.c drops the reference to the dentry when it returns an error. This behaviour was imported into dentrycreate so that it will drop the reference if an...

CVE-2026-53244 VFS: fix possible failure to unlock in nfsd4_create_file()

In the Linux kernel, the following vulnerability has been resolved: VFS: fix possible failure to unlock in nfsd4createfile atomiccreate in fs/namei.c drops the reference to the dentry when it returns an error. This behaviour was imported into dentrycreate so that it will drop the reference if an...

PT-2026-52339

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A failure to unlock the parent directory occurs in the nfsd4 create file function. This happens when the NFSD exports a filesystem using atomic create and that function returns an error...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: nfsd: Fixed the reference leak in nfsd4addrdaccesstowrdeleg. The nfsd4addrdaccesstowrdeleg function overwrites fp-fifdsORDONLY unconditionally with a newly acquired nfsdfile. However, if the client already has a SHAREACCESSREA...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-007031)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007031 advisory. In the Linux kernel, the following vulnerability has been resolved: nfsd: handle getclientlocked failure in nfsd4setclientidconfirm Lei Lu recently reported that...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007623)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007623 advisory. In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix crash in nfsd4readrelease When tracing is enabled, the tracenfsdreaddone trace point...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-006703)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006703 advisory. In the Linux kernel, the following vulnerability has been resolved: nfsd: handle getclientlocked failure in nfsd4setclientidconfirm Lei Lu recently reported that...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-006697)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006697 advisory. In the Linux kernel, the following vulnerability has been resolved: NFSD: Avoid calling OPDESC with ops-opnum == OPILLEGAL OPDESC simply indexes into nfsd4ops by the...

EulerOS 2.0 SP10 : kernel (EulerOS-SA-2026-1313)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : scsi: mpt3sas: Fix crash in transport port remove by using iocinfoCVE-2025-40115 scsi: target: Fix WRITESAME No Data Buffer crashCVE-2022-21546...

ROS-20260119-7368

A vulnerability in the nfsd4runcbwork function of the nfs4callback.c component of the Linux kernel is related to improper control of resource identifiers. Exploitation of the vulnerability could allow an attacker to cause a denial of service...

CVE-2025-71090

A reference leak flaw was found in the Linux kernel's NFSv4 server nfsd. The nfsd4addrdaccesstowrdeleg function overwrites file pointers without releasing existing references, causing nfsdfile reference leaks. On server shutdown, these leaked references trigger a BUG in kmemcachedestroy as object...