CVE-2026-31437

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix NULL pointer dereference in netfsunbufferedwrite on retry When a write subrequest is marked NETFSSREQNEEDRETRY, the retry path in netfsunbufferedwrite unconditionally calls stream-preparewrite without checking if it is...

CVE-2026-31438 netfs: Fix kernel BUG in netfs_limit_iter() for ITER_KVEC iterators

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix kernel BUG in netfslimititer for ITERKVEC iterators When a process crashes and the kernel writes a core dump to a 9P filesystem, kernelwrite creates an ITERKVEC iterator. This iterator reaches netfslimititer via...

PT-2026-34343

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A kernel BUG occurs in the netfs limit iter function when handling ITER KVEC iterators. This happens when a process crashes and the kernel attempts to write a core dump to a 9P filesyste...

Linux Distros Unpatched Vulnerability : CVE-2026-31438

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfs: Fix kernel BUG in netfslimititer for ITERKVEC iterators When a process crashes and the kernel writes a core dump to a 9P filesystem, kernelwrite creates ...

Linux kernel 安全漏洞

The Linux kernel is the core used by 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 a kernel bug in netfs when processing the ITERKVEC iterator. This bug may cause the core dum...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013491)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013491 advisory. In the Linux kernel, the following vulnerability has been resolved: fs/9p: only translate RWX permissions for plain 9P2000 Garbage in plain 9P2000's perm bits is...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-013739)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013739 advisory. In the Linux kernel, the following vulnerability has been resolved: net/9p: fix double req put in p9fdcancelled Syzkaller reports a KASAN issue as below: general...

Unity Linux 20.1050e / 20.1070e Security Update: kernel (UTSA-2026-011368)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011368 advisory. In the Linux kernel, the following vulnerability has been resolved: fs/9p: only translate RWX permissions for plain 9P2000 Garbage in plain 9P2000's perm bits is...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007620)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007620 advisory. In the Linux kernel, the following vulnerability has been resolved: net/9p: fix double req put in p9fdcancelled Syzkaller reports a KASAN issue as below: general...

Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS : kvmtool vulnerabilities (USN-8172-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8172-1 advisory. It was discovered that kvmtool did not properly manage memory under certain circumstances. A malicious guest attacker...

USN-8172-1 kvmtool vulnerabilities

It was discovered that kvmtool did not properly manage memory under certain circumstances. A malicious guest attacker could use this issue to cause kvmtool to crash, leading to a denial of service, or possibly execute arbitrary code on the host system. CVE-2021-45464 It was discovered that kvmtoo...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-006629)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006629 advisory. In the Linux kernel, the following vulnerability has been resolved: net: 9p: fix refcount leak in p9readwork error handling p9reqput need to be called when...

The vulnerability of the p9_read_work() function in the net/9p/trans_fd.c module of the Linux operating system allows a hacker to cause a service failure.

The vulnerability of the p9readwork function in the net/9p/transfd.c module of the Linux kernel is related to errors during the update of the reference counter. Exploiting this vulnerability could allow an attacker to cause a service failure...

The vulnerability of the p9_tag_alloc() function in the net/9p/client.c module of the 9P protocol implementation in the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the p9tagalloc function in the net/9p/client.c module of the 9P protocol implementation in the Linux operating system is related to the reutilization of previously freed memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity...

USN-8033-7 linux-intel-iotg-5.15, linux-xilinx-zynqmp 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: - Nios II architecture; - Sun Sparc architecture; - User-Mode Linux UML; - x86 architecture; - Block layer subsystem;...

USN-8033-7: Linux kernel 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: - Nios II architecture; - Sun Sparc architecture; - User-Mode Linux UML; - x86 architecture; - Block layer subsystem;...

USN-8033-3 linux-aws-fips, linux-fips, linux-gcp-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: - Nios II architecture; - Sun Sparc architecture; - User-Mode Linux UML; - x86 architecture; - Block layer subsystem;...

USN-8033-2: Linux kernel 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: - Nios II architecture; - Sun Sparc architecture; - User-Mode Linux UML; - x86 architecture; - Block layer subsystem;...

ROS-20260202-73-0053

A vulnerability in the p9clientwrite function of the 9p/net component of the Linux kernel is related to pointer dereferencing errors. Exploitation of the vulnerability could allow an attacker to cause a denial of service...

Azure Linux 3.0 Security Update: kernel (CVE-2025-37879)

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-2025-37879 advisory. - In the Linux kernel, the following vulnerability has been resolved: 9p/net: fix improper handling of bogus...