Astra Linux – vulnerability in linux-5.10

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Protect mc during concurrent multicast leaves Partially revert the commit mentioned in the Fixes line to ensure that allocation and erasing multicast struct are locked. BUG: KASAN: use-after-free in ucmacleanupmulticas...

Astra Linux - vulnerability in linux

An issue was found in the Linux kernel prior to version 5.10. Drivers/infiniband/core/ucma.c contains a use-after-free vulnerability; this occurs when the ctx is accessed via ctxlist in certain scenarios involving ucmamigrateid calls to ucmaclose, specifically CID-f5449e74802c...

Astra Linux – vulnerability in linux-5.10, linux-6.1

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Lock the handler in ucmasetibpath ucmasetibpath calls ucmaeventhandler directly from the write path, without holding the handler lock that keeps ctx-file stable while an uevent is queued. The handler re-reads ctx-file...

SUSE CVE-2026-98253

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Serialize join and leave on copytouser failure rdmajoinmulticast queues RoCE work that later reads the ucmamulticast through event-param.ud.privatedata, then listadds the CMA multicast at the head of idpriv-mclist...

CVE-2026-98253

A flaw was found in the Linux kernel's RDMA Remote Direct Memory Access subsystem. A local attacker can cause a Denial of Service DoS or memory corruption by exploiting a race condition in the User Connection Manager Access ucma component. This issue occurs when concurrent multicast join requests...

AZL-106368 CVE-2026-98253 affecting package kernel for versions less than 6.6.158.1-1

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Serialize join and leave on copytouser failure rdmajoinmulticast queues RoCE work that later reads the ucmamulticast through event-param.ud.privatedata, then listadds the CMA multicast at the head of idpriv-mclist...

DEBIAN-CVE-2026-98253

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Serialize join and leave on copytouser failure rdmajoinmulticast queues RoCE work that later reads the ucmamulticast through event-param.ud.privatedata, then listadds the CMA multicast at the head of idpriv-mclist...

CVE-2026-98253

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Serialize join and leave on copytouser failure rdmajoinmulticast queues RoCE work that later reads the ucmamulticast through event-param.ud.privatedata, then listadds the CMA multicast at the head of idpriv-mclist...

CVE-2026-98253

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Serialize join and leave on copytouser failure rdmajoinmulticast queues RoCE work that later reads the ucmamulticast through event-param.ud.privatedata, then listadds the CMA multicast at the head of idpriv-mclist...

UBUNTU-CVE-2026-98253

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Serialize join and leave on copytouser failure rdmajoinmulticast queues RoCE work that later reads the ucmamulticast through event-param.ud.privatedata, then listadds the CMA multicast at the head of idpriv-mclist...

CVE-2026-98253 RDMA/ucma: Serialize join and leave on copy_to_user failure

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Serialize join and leave on copytouser failure rdmajoinmulticast queues RoCE work that later reads the ucmamulticast through event-param.ud.privatedata, then listadds the CMA multicast at the head of idpriv-mclist...

CVE-2026-98253

The Linux kernel is vulnerable to a race condition in the RDMA/ucma component during concurrent JOIN_MCAST calls. The root cause is that ucma_process_join() previously released ctx->mutex after a successful join, allowing two concurrent calls with the same address to insert a second CMA entry....

CVE-2026-98253 RDMA/ucma: Serialize join and leave on copy_to_user failure

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Serialize join and leave on copytouser failure rdmajoinmulticast queues RoCE work that later reads the ucmamulticast through event-param.ud.privatedata, then listadds the CMA multicast at the head of idpriv-mclist...

EUVD-2026-93181

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Serialize join and leave on copytouser failure rdmajoinmulticast queues RoCE work that later reads the ucmamulticast through event-param.ud.privatedata, then listadds the CMA multicast at the head of idpriv-mclist...

CVE-2026-98253

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Serialize join and leave on copytouser failure rdmajoinmulticast queues RoCE work that later reads the ucmamulticast through event-param.ud.privatedata, then listadds the CMA multicast at the head of idpriv-mclist...

CVE-2026-98253: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Serialize join and leave on copytouser failure rdmajoinmulticast queues RoCE work that later reads the ucmamulticast through event-param.ud.privatedata, then listadds the CMA multicast at the head of idpriv-mclist...

PT-2026-106582

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the RDMA/ucma component where ucma process join drops the ctx-mutex after a successful join and only retakes it if copy to user fails. This allows two concurrent JOIN...

Linux Distros Unpatched Vulnerability : CVE-2026-98253

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - RDMA/ucma: Serialize join and leave on copytouser failure rdmajoinmulticast queues RoCE work that later reads the ucmamulticast through...

PT-2026-115800

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Serialize join and leave on copy to user failure rdma join multicast queues RoCE work that later reads the ucma multicast through event-param.ud.private data, then list adds the CMA multicast at the head of id priv-mc...

SUSE CVE-2026-89507

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Lock the handler in ucmawritecmevent ctx-file may only be changed under the handler lock and the xalock, which is what stops uevents being queued for a ctx while ucmamigrateid moves it to another file. The CM core take...