USN-7865-1: Linux kernel (FIPS) vulnerabilities

Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered that the Linux kernel contained insufficient branch predictor isolation between a guest and a userspace hypervisor for certain processors. This flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this t...

Important: kernel-livepatch-6.1.147-172.266

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: net/sched: Fix backlog accounting in qdiscdequeueinternal CVE-2025-39677 In the Linux kernel, the following vulnerability has been resolved: fs/buffer: fix use-after-free when call bhread helper CVE-2025-39691 In...

RockyLinux 9 : kernel (RLSA-2025:19105)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2025:19105 advisory. kernel: vsock/virtio: Validate length in packet header before skbput CVE-2025-39718 kernel: NFS: Fix filehandle bounds checking in nfsfhtodentry...

USN-7795-5 linux-raspi-5.4 vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Ext4 file system; - Network file system NFS server daemon; - Packet sockets; - Network traffic control; - VMware...

USN-7835-5: Linux kernel (Oracle) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - PowerPC architecture; - x86 architecture; - ACPI drivers; - Ublk userspace block driver; -...

USN-7835-5 linux-oracle-6.8 vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - PowerPC architecture; - x86 architecture; - ACPI drivers; - Ublk userspace block driver; -...

kernel: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry()

A flaw out of boundary read in the Linux kernel NFS functionality was found in the way connected user sends malicious data to the server. A remote user could use this flaw to crash the system...

RLSA-2025:19105 Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: vsock/virtio: Validate length in packet header before skbput CVE-2025-39718 kernel: NFS: Fix filehandle bounds checking in nfsfhtodentry CVE-2025-39730 kernel: ALSA: hda/ca0132: Fix buffe...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989354)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989354 advisory. In the Linux kernel, the following vulnerability has been resolved: NFSv4: Fix an Oops in pnfsmarkrequestcommit when doing ODIRECT Fix an Oopsable condition in...

The vulnerability of the nfs_pageio_do_add_request() function in the fs/nfs/pagelist.c module of the Linux file system support module allows a hacker to cause a service failure.

The vulnerability of the nfspageiodoaddrequest function in the fs/nfs/pagelist.c module of the Linux file system support module is related to improper control of resource identifiers “resource injection”. Exploiting this vulnerability could allow an attacker to cause service failures...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988943)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988943 advisory. In the Linux kernel, the following vulnerability has been resolved: NFSv4: Don't hold the layoutget locks across multiple RPC calls When doing layoutget as part of t...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989770)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989770 advisory. In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix iasize underflow iattr::iasize is a lofft, which is a signed 64-bit type. NFSv3 and NFS...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989943)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989943 advisory. In the Linux kernel, the following vulnerability has been resolved: NFSv4.2: fix reference count leaks in nfs42proccopynotify You don't often get email from...

kernel security update

An update is available for kernel. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The kernel packages contain the Linux kernel, the core of any Linux operating...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: NFS: Fixed a race condition when updating an existing write request. After the nfslockandjoinrequests function checks whether the request is still attached to the mapping, nothing prevents a call to nfs inoderemoverequest from...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: sunrpc: Fixing the handling of server-side TLS alerts Scott Mayhew discovered a security exploit in NFS over TLS, specifically in the tlsalertrecv function. This exploit stemmed from a misunderstanding by the system that it could...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: NFS: Fixed the setting of capabilities when automatically mounting a new filesystem. Capabilities cannot be inherited when crossing into a new filesystem. They need to be reset to their minimum defaults, and then checked again...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: NFS: Fixed the filehandle bounds checking in nfsfhtodentry. The function needs to check the minimum filehandle length before it can access the embedded filehandle...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: NFSv4/pNFS: Fixed a race condition related to waking up the NFSLAYOUTDRAIN task. We identified several systems where tasks were stuck in a writeback state, waiting for the same page lock. Additionally, one task was waiting for th...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: nfsd: Initialize ssc before laundromatwork to prevent NULL dereference In nfs4statestartnet, laundromatwork may access nfsd4sscexpireumount through nfs4laundromat. If nfsd4ssc is not initialized, this can lead to a NULL pointer...