kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache

A flaw was found in the Linux kernel's NFSv4.0 server nfsd. A remote, unauthenticated attacker can exploit this heap overflow vulnerability in the NFSv4.0 LOCK replay cache. By using two cooperating NFSv4.0 clients, where one sets a lock with a large owner string and another requests a conflictin...

Linux Distros Unpatched Vulnerability : CVE-2026-43470

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nfs: return EISDIR on nfs3proccreate if dalias is a dir If we found an alias through nfs3docreate/nfsaddorobtain /dsplicealias which happens to be a dir dentry,...

EUVD-2026-28776

In the Linux kernel, the following vulnerability has been resolved: nfs: return EISDIR on nfs3proccreate if dalias is a dir If we found an alias through nfs3docreate/nfsaddorobtain /dsplicealias which happens to be a dir dentry, we don't return any error, and simply forget about this alias, but t...

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...

UBUNTU-CVE-2026-43470

In the Linux kernel, the following vulnerability has been resolved: nfs: return EISDIR on nfs3proccreate if dalias is a dir If we found an alias through nfs3docreate/nfsaddorobtain /dsplicealias which happens to be a dir dentry, we don't return any error, and simply forget about this alias, but t...

CVE-2026-43371

In the Linux kernel, the following vulnerability has been resolved: net: macb: Shuffle the tx ring before enabling tx Quanyang observed that when using an NFS rootfs on an AMD ZynqMp board, the rootfs may take an extended time to recover after a suspend. Upon investigation, it was determined that...

UBUNTU-CVE-2026-43394

In the Linux kernel, the following vulnerability has been resolved: nfsd: Fix cred ref leak in nfsdnllistenersetdoit. nfsdnllistenersetdoit uses getcurrentcred without putcred. As we can see from other callers, svcxprtcreatefromsa does not require the extra refcount. nfsdnllistenersetdoit is alwa...

CVE-2026-43470

CVE-2026-43470 affects the Linux kernel NFS implementation. When an alias found via nfs3_do_create/nfs_add_or_obtain /d_splice_alias corresponds to a directory, the code could forget the alias while keeping the original negative dentry, causing an oops in nfs_atomic_open_v23/finish_open. The issu...

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...

UBUNTU-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...

PT-2026-39131

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the NFS implementation where the system fails to return an error when a directory alias is found through nfs3 do create, nfs add or obtain, or d splice alias. In such...

Linux Distros Unpatched Vulnerability : CVE-2026-43350

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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 ...

PT-2026-39032

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A problem in the macb driver occurs when transmit is disabled, as the transmit buffer queue pointer resets to the address specified by the transmit buffer queue base address register. Th...

kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache

A flaw was found in the Linux kernel's NFSv4.0 server nfsd. A remote, unauthenticated attacker can exploit this heap overflow vulnerability in the NFSv4.0 LOCK replay cache. By using two cooperating NFSv4.0 clients, where one sets a lock with a large owner string and another requests a conflictin...

kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache

A flaw was found in the Linux kernel's NFSv4.0 server nfsd. A remote, unauthenticated attacker can exploit this heap overflow vulnerability in the NFSv4.0 LOCK replay cache. By using two cooperating NFSv4.0 clients, where one sets a lock with a large owner string and another requests a conflictin...

kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache

A flaw was found in the Linux kernel's NFSv4.0 server nfsd. A remote, unauthenticated attacker can exploit this heap overflow vulnerability in the NFSv4.0 LOCK replay cache. By using two cooperating NFSv4.0 clients, where one sets a lock with a large owner string and another requests a conflictin...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION. 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...

USN-8257-1: Linux kernel (Raspberry Pi) vulnerabilities

Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo Rizzo discovered that some AMD Zen processors did not properly verify the signature of CPU microcode. This flaw is known as EntrySign. A privileged attacker could possibly use this issue to cause load malicious CPU microcod...

AlmaLinux 10 : kernel (ALSA-2026:13566)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:13566 advisory. kernel: Linux kernel: Use-after-free in traffic control actct may lead to denial of service or privilege escalation CVE-2026-23270 kernel: nfsd: fix hea...

RHEL 6 : kernel (RHSA-2026:14823)

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:14823 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: out-of-bound read in...