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...

CVE-2026-31709

In the Linux kernel, the following vulnerability has been resolved: smb: client: validate the whole DACL before rewriting it in cifsacl buildsecdesc and idmodetocifsacl derive a DACL pointer from a server-supplied dacloffset and then use the incoming ACL to rebuild the chmod/chown security...

CVE-2026-31693 cifs: some missing initializations on replay

In the Linux kernel, the following vulnerability has been resolved: cifs: some missing initializations on replay In several places in the code, we have a label to signify the start of the code where a request can be replayed if necessary. However, some of these places were missing the necessary...

The vulnerability of the nfsd_init_dirlist_pages() function in the fs/nfsd/nfsproc.c module, which is part of the Linux kernel’s Network File System support, allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the nfsdinitdirlistpages function in the fs/nfsd/nfsproc.c module, which is part of the Linux kernel’s Network File System support, involves copying buffers without checking their size—a classic buffer overflow attack. Exploiting this vulnerability could allow an attacker to...

Moderate: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

USN-8180-5 linux-ibm, linux-ibm-5.15 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; - Block layer subsystem; - Drivers core; - Bluetooth drivers; - DMA engine subsystem; - GPU...

The vulnerability of the NFSD component in the Linux operating system’s kernel allows a hacker to trigger a service failure.

The vulnerability of the NFSD component in the Linux operating system’s kernel is related to the dereferencing of a pointer whose expiration time has expired. Exploiting this vulnerability can allow an attacker to trigger a service failure...

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...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013709)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013709 advisory. In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a potential data corruption We must ensure that the subrequests are joined back into the...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the netfs mechanism’s issue during retries when reading abandoned files. This issue may lead to...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-011392)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011392 advisory. A use-after-free flaw was found in smb2isstatusiotimeout in CIFS in the Linux Kernel. After CIFS transfers response data to a system call, there are still local...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013098)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013098 advisory. In the Linux kernel, the following vulnerability has been resolved: nfs4setupreaddir: insufficient locking for -dparent-dinode dereferencing Theoretically it's an...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-011395)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011395 advisory. In the Linux kernel, the following vulnerability has been resolved: NFSD: Define a proclayoutcommit for the FlexFiles layout type Avoid a crash if a pNFS client shou...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-010875)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010875 advisory. In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a potential data corruption We must ensure that the subrequests are joined back into the...

Unity Linux 20.1050e / 20.1070e Security Update: kernel (UTSA-2026-010974)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010974 advisory. In the Linux kernel, the following vulnerability has been resolved: NFSD: free copynotify stateid in nfs4freeolstateid Typically copynotify stateid is freed either...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013008)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013008 advisory. In the Linux kernel, the following vulnerability has been resolved: smb: client: fix memory leak in cifsconstructtcon When having a multiuser mount with domain=...

Ubuntu 22.04 LTS : Linux kernel (NVIDIA) vulnerabilities (USN-8187-1)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8187-1 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in...

USN-8187-1: Linux kernel (NVIDIA) 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; - Block layer subsystem; - Drivers core; - Bluetooth drivers; - DMA engine subsystem; - GPU...

USN-8186-1 linux-intel-iot-realtime, linux-realtime 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; - Block layer subsystem; - Drivers core; - Bluetooth drivers; - DMA engine subsystem; - GPU...

USN-8180-2: Linux kernel (FIPS) 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; - Block layer subsystem; - Drivers core; - Bluetooth drivers; - DMA engine subsystem; - GPU...