SUSE-SU-2026:1077-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP5 RT kernel was updated to fix various security issues The following security issues were fixed: - CVE-2025-21738: ata: libata-sff: Ensure that we cannot write outside the allocated buffer bsc1238917. - CVE-2025-40242: gfs2: Fix unlikely race in gdlmputlock...

net/sched: ets: fix divide by zero in the offload path

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CVE-2026-23371

A flaw was found in the Linux kernel's sched/deadline component. When a SCHEDDEADLINE task, which is a type of real-time task, has its priority class changed to a lower setting, it may not correctly inherit parameters from other DEADLINE tasks. This can lead to corruption in the bandwidth...

SUSE CVE-2026-23311

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix invalid wait context in ctxschedin Lockdep found a bug in the event scheduling when a pinned event was failed and wakes up the threads in the ring buffer like below. It seems it should not grab a wait-queue lock...

CVE-2026-23371

In the Linux kernel, the following vulnerability has been resolved: sched/deadline: Fix missing ENQUEUEREPLENISH during PI de-boosting Running stress-ng --schedpolicy 0 on an RT kernel on a big machine might lead to the following WARNINGs edited. sched: DL de-boosted task PID 22725: REPLENISH fla...

UBUNTU-CVE-2026-23378

In the Linux kernel, the following vulnerability has been resolved: net/sched: actife: Fix metalist update behavior Whenever an ife action replace changes the metalist, instead of replacing the old data on the metalist, the current ife code is appending the new metadata. Aside from being...

CVE-2026-23371

In the Linux kernel, the following vulnerability has been resolved: sched/deadline: Fix missing ENQUEUEREPLENISH during PI de-boosting Running stress-ng --schedpolicy 0 on an RT kernel on a big machine might lead to the following WARNINGs edited. sched: DL de-boosted task PID 22725: REPLENISH fla...

UBUNTU-CVE-2026-23371

In the Linux kernel, the following vulnerability has been resolved: sched/deadline: Fix missing ENQUEUEREPLENISH during PI de-boosting Running stress-ng --schedpolicy 0 on an RT kernel on a big machine might lead to the following WARNINGs edited. sched: DL de-boosted task PID 22725: REPLENISH fla...

CVE-2026-23379 net/sched: ets: fix divide by zero in the offload path

In the Linux kernel, the following vulnerability has been resolved: net/sched: ets: fix divide by zero in the offload path Offloading ETS requires computing each class' WRR weight: this is done by averaging over the sums of quanta as 'qsum' and 'qpsum'. Using unsigned int, the same integer size a...

CVE-2026-23378 net/sched: act_ife: Fix metalist update behavior

In the Linux kernel, the following vulnerability has been resolved: net/sched: actife: Fix metalist update behavior Whenever an ife action replace changes the metalist, instead of replacing the old data on the metalist, the current ife code is appending the new metadata. Aside from being...

CVE-2026-23378

In the Linux kernel, the following vulnerability has been resolved: net/sched: actife: Fix metalist update behavior Whenever an ife action replace changes the metalist, instead of replacing the old data on the metalist, the current ife code is appending the new metadata. Aside from being...

CVE-2026-23371 sched/deadline: Fix missing ENQUEUE_REPLENISH during PI de-boosting

In the Linux kernel, the following vulnerability has been resolved: sched/deadline: Fix missing ENQUEUEREPLENISH during PI de-boosting Running stress-ng --schedpolicy 0 on an RT kernel on a big machine might lead to the following WARNINGs edited. sched: DL de-boosted task PID 22725: REPLENISH fla...

CVE-2026-23371

CVE-2026-23371 (Linux kernel SCHED_DEADLINE) details (from provided docs): The vulnerability arose when a SCHED_DEADLINE task (often a lock holder) moved to a lower class via sched_setscheduler() and failed to inherit the donor DEADLINE parameters, risking bandwidth accounting corruption because ...

CVE-2026-23371 sched/deadline: Fix missing ENQUEUE_REPLENISH during PI de-boosting

In the Linux kernel, the following vulnerability has been resolved: sched/deadline: Fix missing ENQUEUEREPLENISH during PI de-boosting Running stress-ng --schedpolicy 0 on an RT kernel on a big machine might lead to the following WARNINGs edited. sched: DL de-boosted task PID 22725: REPLENISH fla...

CVE-2026-23340 net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs

In the Linux kernel, the following vulnerability has been resolved: net: sched: avoid qdiscresetalltxgt vs dequeue race for lockless qdiscs When shrinking the number of real tx queues, netifsetrealnumtxqueues calls qdiscresetalltxgt to flush qdiscs for queues which will no longer be used...

CVE-2026-23311

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix invalid wait context in ctxschedin Lockdep found a bug in the event scheduling when a pinned event was failed and wakes up the threads in the ring buffer like below. It seems it should not grab a wait-queue lock...

CVE-2026-23311 perf/core: Fix invalid wait context in ctx_sched_in()

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix invalid wait context in ctxschedin Lockdep found a bug in the event scheduling when a pinned event was failed and wakes up the threads in the ring buffer like below. It seems it should not grab a wait-queue lock...

SUSE-SU-2026:1003-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP5 kernel was updated to receive various security bugfixes. The following security bugs were fixed: - CVE-2025-21738: ata: libata-sff: Ensure that we cannot write outside the allocated buffer bsc1238917. - CVE-2025-40242: gfs2: Fix unlikely race in gdlmputlock...

Linux Distros Unpatched Vulnerability : CVE-2026-23371

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - sched/deadline: Fix missing ENQUEUEREPLENISH during PI de-boosting Running stress-ng --schedpolicy 0 on an RT kernel on a big machine might lead to the followin...

SUSE-SU-2026:20896-1 Security update for the Linux Kernel RT (Live Patch 10 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise Kernel 6.4.0-34.1 fixes various security issues The following security issues were fixed: - CVE-2025-38488: smb: client: fix use-after-free in cryptmessage when using async crypto bsc1247240. - CVE-2025-40258: mptcp: fix race condition in mptcpschedulewor...