USN-8574-3: Linux kernel vulnerabilities

It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. CVE-2025-54505 It was discovered that some AMD Zen 2 processors did not properly isolate shared...

OESA-2026-3156 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: drbd: add missing krefget in handlewriteconflicts With two-primaries enabled, DRBD tries to detect "concurrent" writes and handle write conflicts, so that even i...

SUSE CVE-2026-53128

In the Linux kernel, the following vulnerability has been resolved: drbd: Balance RCU calls in drbdadmdumpdevices Make drbdadmdumpdevices call rcureadlock before rcureadunlock is called. This has been detected by the Clang thread-safety analyzer...

Linux Distros Unpatched Vulnerability : CVE-2026-53128

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - drbd: Balance RCU calls in drbdadmdumpdevices Make drbdadmdumpdevices call rcureadlock before rcureadunlock is called. This has been detected by the Clang...

CVE-2026-53128

A flaw was found in the Linux kernel's drbd component. Specifically, an imbalance in RCU Read-Copy Update calls within the drbdadmdumpdevices function could occur, where rcureadlock was not properly invoked before rcureadunlock. This concurrency issue, identified by a thread-safety analyzer, may...

CVE-2026-53128

In the Linux kernel, the following vulnerability has been resolved: drbd: Balance RCU calls in drbdadmdumpdevices Make drbdadmdumpdevices call rcureadlock before rcureadunlock is called. This has been detected by the Clang thread-safety analyzer...

CVE-2026-53128

CVE-2026-53128 affects the Linux kernel DRBD path, specifically drbd_adm_dump_devices(). The root cause is that rcu_read_lock() was not held across the RCU read section before rcu_read_unlock(), as flagged by the Clang thread-safety analyzer. The CVE is tracked in OSV and Debian advisories, with ...

EUVD-2026-38996

In the Linux kernel, the following vulnerability has been resolved: drbd: Balance RCU calls in drbdadmdumpdevices Make drbdadmdumpdevices call rcureadlock before rcureadunlock is called. This has been detected by the Clang thread-safety analyzer...

PT-2026-52022

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the DRBD module where the drbd adm dump devices function fails to call rcu read lock before rcu read unlock is invoked. This imbalance in Read-Copy-Update RCU—a...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: drbd: Use of “free” after calling drbdcreatedevice The drbdDestroyConnection function frees the “connection” object. Therefore, it is necessary to use the safe iterator to prevent a use of a freed resource after the initial...

EUVD-2026-15211

In the Linux kernel, the following vulnerability has been resolved: drbd: fix null-pointer dereference on local read error In drbdrequestendio, READCOMPLETEDWITHERROR is passed to reqmod with a NULL peerdevice: reqmodreq, what, NULL, &m; The READCOMPLETEDWITHERROR handler then unconditionally...

CVE-2026-23356

In the Linux kernel, the following vulnerability has been resolved: drbd: fix "LOGIC BUG" in drbdalbeginiononblock Even though we check that we "should" be able to do lcgetcumulative while holding the device-allock spinlock, it may still fail, if some other code path decided to do lctrylock with...

CVE-2026-23285

In the Linux kernel, the following vulnerability has been resolved: drbd: fix null-pointer dereference on local read error In drbdrequestendio, READCOMPLETEDWITHERROR is passed to reqmod with a NULL peerdevice: reqmodreq, what, NULL, &m; The READCOMPLETEDWITHERROR handler then unconditionally...

UBUNTU-CVE-2026-23285

In the Linux kernel, the following vulnerability has been resolved: drbd: fix null-pointer dereference on local read error In drbdrequestendio, READCOMPLETEDWITHERROR is passed to reqmod with a NULL peerdevice: reqmodreq, what, NULL, &m; The READCOMPLETEDWITHERROR handler then unconditionally...

CVE-2026-23285

In the Linux kernel, the following vulnerability has been resolved: drbd: fix null-pointer dereference on local read error In drbdrequestendio, READCOMPLETEDWITHERROR is passed to reqmod with a NULL peerdevice: reqmodreq, what, NULL, &m; The READCOMPLETEDWITHERROR handler then unconditionally...

CVE-2026-23356

In the Linux kernel, the following vulnerability has been resolved: drbd: fix "LOGIC BUG" in drbdalbeginiononblock Even though we check that we "should" be able to do lcgetcumulative while holding the device-allock spinlock, it may still fail, if some other code path decided to do lctrylock with...

CVE-2026-23285 drbd: fix null-pointer dereference on local read error

In the Linux kernel, the following vulnerability has been resolved: drbd: fix null-pointer dereference on local read error In drbdrequestendio, READCOMPLETEDWITHERROR is passed to reqmod with a NULL peerdevice: reqmodreq, what, NULL, &m; The READCOMPLETEDWITHERROR handler then unconditionally...

CVE-2026-23285 drbd: fix null-pointer dereference on local read error

In the Linux kernel, the following vulnerability has been resolved: drbd: fix null-pointer dereference on local read error In drbdrequestendio, READCOMPLETEDWITHERROR is passed to reqmod with a NULL peerdevice: reqmodreq, what, NULL, &m; The READCOMPLETEDWITHERROR handler then unconditionally...

CVE-2026-23285

In the Linux kernel, the following vulnerability has been resolved: drbd: fix null-pointer dereference on local read error In drbdrequestendio, READCOMPLETEDWITHERROR is passed to reqmod with a NULL peerdevice: reqmodreq, what, NULL, &m; The READCOMPLETEDWITHERROR handler then unconditionally...

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 a logical error in drbdalbeginiononblock. This error may lead to race conditions and cause the...