SUSE-SU-2026:20168-1 Security update for the Linux Kernel RT (Live Patch 1 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise kernel 6.12.0-160000.6.1 fixes various security issues The following security issues were fixed: - CVE-2025-39963: iouring: fix incorrect iokiocb reference in iolinkskb bsc1251982. - CVE-2025-40204: sctp: Fix MAC comparison to be constant-time bsc1253437....

CVE-2026-22980

In the Linux kernel, the following vulnerability has been resolved: nfsd: provide locking for v4endgrace Writing to v4endgrace can race with server shutdown and result in memory being accessed after it was freed - reclaimstrhashtbl in particularly. We cannot hold nfsdmutex across the nfsd4endgrac...

CVE-2026-22980 nfsd: provide locking for v4_end_grace

In the Linux kernel, the following vulnerability has been resolved: nfsd: provide locking for v4endgrace Writing to v4endgrace can race with server shutdown and result in memory being accessed after it was freed - reclaimstrhashtbl in particularly. We cannot hold nfsdmutex across the nfsd4endgrac...

Azure Linux 3.0 Security Update: kernel (CVE-2025-22025)

The version of kernel installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-22025 advisory. - In the Linux kernel, the following vulnerability has been resolved: nfsd: put dlstid if fail to queue dlreca...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-003056)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003056 advisory. The NFSv4 server in the Linux kernel before 4.11.3 does not properly validate the layout type when processing the NFSv4 pNFS GETDEVICEINFO or LAYOUTGET operand in a...

kernel: NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL

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 op's operation number, without range checking that value. It assumes callers are careful to avoid calling it with an out-of-bounds...

kernel: nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm()

A vulnerability has been identified in the Linux kernel's Network File System NFS daemon that could allow for a Denial of Service and in worst case scenario Arbitrary Code Execution. This Use-After-Free flaw arises from a race condition when the kernel handles the confirmation of an NFS client...

kernel: nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm()

A vulnerability has been identified in the Linux kernel's Network File System NFS daemon that could allow for a Denial of Service and in worst case scenario Arbitrary Code Execution. This Use-After-Free flaw arises from a race condition when the kernel handles the confirmation of an NFS client...

RHEL 9 : kernel-rt (RHSA-2026:0534)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:0534 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirement...

CVE-2025-71090

The CVE-2025-71090 entry concerns a Linux kernel vulnerability in the NFS server (nfsd). The issue is a reference-leak in nfsd4_add_rdaccess_to_wrdeleg(): fp->fi_fds[O_RDONLY] is overwritten with a newly acquired nfsd_file without releasing the prior reference if SHARE_ACCESS_READ exists, and ...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: nfsd: Fixed the reference count leak in nfsdsetfhdentry. nfsd exports a “pseudo root filesystem” which is used by NFSv4 to find the various exported filesystems using LOOKUP requests from a known root filehandle. NFSv3 uses th...

SUSE CVE-2023-54276

In the Linux kernel, the following vulnerability has been resolved: nfsd: move init of percpu replycachestats counters back to nfsdinitnet Commit f5f9d4a314da "nfsd: move reply cache initialization into nfsd startup" moved the initialization of the reply cache into nfsd startup, but didn't accoun...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-993255)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-993255 advisory. In the Linux kernel, the following vulnerability has been resolved: NFSD: fix use-after-free on source server when doing inter-server copy Use-after-free occurred wh...

UBUNTU-CVE-2023-54276

In the Linux kernel, the following vulnerability has been resolved: nfsd: move init of percpu replycachestats counters back to nfsdinitnet Commit f5f9d4a314da "nfsd: move reply cache initialization into nfsd startup" moved the initialization of the reply cache into nfsd startup, but didn't accoun...

CVE-2022-50861

In the Linux kernel, the following vulnerability has been resolved: NFSD: Finish converting the NFSv2 GETACL result encoder The xdrstream conversion inadvertently left some code that set the pagelen of the send buffer. The XDR stream encoders should handle this automatically now. This oversight...

CVE-2023-54276

In the Linux kernel, the following vulnerability has been resolved: nfsd: move init of percpu replycachestats counters back to nfsdinitnet Commit f5f9d4a314da "nfsd: move reply cache initialization into nfsd startup" moved the initialization of the reply cache into nfsd startup, but didn't accoun...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992519)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992519 advisory. In the Linux kernel, the following vulnerability has been resolved: nfsd: under NFSv4.1, fix double svcxprtput on rpccreate failure On error situation...

PT-2025-54105

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel’s Network File System daemon nfsd related to the initialization of per-CPU reply cache statistics counters. A previous commit moved the initialization o...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

SUSE CVE-2025-40273

In the Linux kernel, the following vulnerability has been resolved: NFSD: free copynotify stateid in nfs4freeolstateid Typically copynotify stateid is freed either when parent's stateid is being close/freed or in nfsd4laundromat if the stateid hasn't been used in a lease period. However, in case...