CVE-2025-21756

CVE-2025-21756 — 利用实验室 仅供教育和授权的安全研究目的使用。 描述 CVE-2025-21756 是 Linux 内核 vsock （虚拟套接字）子系统中的一个 释放后使用（UAF） 漏洞，于 2025 年 2 月 26 日披露。它允许本地攻击者在受影响的 Linux 系统上将 权限提升至 root 。 CVSS v3.1： 7.8（高） 向量： AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CWE： CWE-416（释放后使用） 受影响组件： net/vmwvsock/afvsock.c 受影响内核： Linux...

DEBIAN-CVE-2026-98252

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: fix refcount bug in iwpmgetnlmsgrequest iwpmgetnlmsgrequest initializes refcount after listaddtail making it accessible to global list where another CPU can krefget on nlmsgrequest causing a refcount "addition on 0" bu...

AZL-106278 CVE-2026-98252 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: fix refcount bug in iwpmgetnlmsgrequest iwpmgetnlmsgrequest initializes refcount after listaddtail making it accessible to global list where another CPU can krefget on nlmsgrequest causing a refcount "addition on 0" bu...

CVE-2026-98252

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: fix refcount bug in iwpmgetnlmsgrequest iwpmgetnlmsgrequest initializes refcount after listaddtail making it accessible to global list where another CPU can krefget on nlmsgrequest causing a refcount "addition on 0" bu...

UBUNTU-CVE-2026-98252

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: fix refcount bug in iwpmgetnlmsgrequest iwpmgetnlmsgrequest initializes refcount after listaddtail making it accessible to global list where another CPU can krefget on nlmsgrequest causing a refcount "addition on 0" bu...

CVE-2026-98252

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: fix refcount bug in iwpmgetnlmsgrequest iwpmgetnlmsgrequest initializes refcount after listaddtail making it accessible to global list where another CPU can krefget on nlmsgrequest causing a refcount "addition on 0" bu...

CVE-2026-98252 RDMA/core: fix refcount bug in iwpm_get_nlmsg_request()

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: fix refcount bug in iwpmgetnlmsgrequest iwpmgetnlmsgrequest initializes refcount after listaddtail making it accessible to global list where another CPU can krefget on nlmsgrequest causing a refcount "addition on 0" bu...

CVE-2026-98252

The Linux kernel contains a refcount bug in the RDMA/core component within the iwpm_get_nlmsg_request() function. The vulnerability is caused by the function initializing the refcount after calling list_add_tail(), which allows another CPU to access the global list and perform a kref_get() on the...

CVE-2026-98252 RDMA/core: fix refcount bug in iwpm_get_nlmsg_request()

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: fix refcount bug in iwpmgetnlmsgrequest iwpmgetnlmsgrequest initializes refcount after listaddtail making it accessible to global list where another CPU can krefget on nlmsgrequest causing a refcount "addition on 0" bu...

EUVD-2026-93180

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: fix refcount bug in iwpmgetnlmsgrequest iwpmgetnlmsgrequest initializes refcount after listaddtail making it accessible to global list where another CPU can krefget on nlmsgrequest causing a refcount "addition on 0" bu...

CVE-2026-98252

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: fix refcount bug in iwpmgetnlmsgrequest iwpmgetnlmsgrequest initializes refcount after listaddtail making it accessible to global list where another CPU can krefget on nlmsgrequest causing a refcount "addition on 0" bu...

Linux Distros Unpatched Vulnerability : CVE-2026-98252

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - RDMA/core: fix refcount bug in iwpmgetnlmsgrequest iwpmgetnlmsgrequest initializes refcount after listaddtail making it accessible to global list where another...

PT-2026-106581

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A refcount bug exists in the RDMA/core component within the iwpm get nlmsg request function. The function initializes the refcount after calling list add tail, which makes the object...

CVE-2026-98252: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: fix refcount bug in iwpmgetnlmsgrequest iwpmgetnlmsgrequest initializes refcount after listaddtail making it accessible to global list where another CPU can krefget on nlmsgrequest causing a refcount "addition on 0" bu...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: hfsplus: The issue of missing hfsbnodeget in hfsbnodecreate has been fixed. When sync and link are called concurrently, both threads may enter hfsbnodefind, but fail to find the node in the hash table. As a result, they proceed t...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Memory: Fixed the refcount leak issue in oflpddr3getddrtimings. We should add the ofnodeput function when exiting from foreachchildofnode, as it will automatically increase and decrease the refcount...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: net: qrtr: A refcount bug was fixed in qrtrrecvmsg. Syzbot reported the following bugs: refcountt: Addition of 0; use-after-free. … RIP: 0010:refcountwarnsaturate+0x17c/0x1f0 lib/refcount.c:25 … Call Trace: refcountadd:...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: net: fixed a refcount bug in skpsockget2. Syzkaller reported the refcount bug as follows: ------------ cut here ------------ refcountt: saturated; memory was leaking. WARNING: CPU: 1 PID: 3605 at lib/refcount.c:19...

RHEL 9 : kernel (RHSA-2026:67150)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:67150 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Linux kernel: Denial of Servi...

PT-2026-90471

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the migrate device pages function where the folio mapping is read before calling folio free swap. If folio free swap succeeds, the folio is removed from the swap cache...