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-2026-31771: Bluetooth: hcievent: move wake reason storage into validated event handlers bsc1264145. CVE-2026-43038: ipv6: icmp: clear skb2-cb in ip6errgenicmpv6unrea...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...

ALSA-2026:36957 Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: net/sched: ets: Always remove class from active list before deleting in etsqdiscchange CVE-2025-71066 kernel: KVM: x86: Fix shadow paging use-after-free due to unexpected GFN CVE-2026-461...

Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: net/sched: ets: Always remove class from active list before deleting in etsqdiscchange CVE-2025-71066 kernel: KVM: x86: Fix shadow paging use-after-free due to unexpected GFN CVE-2026-461...

RHEL 9 : kernel (RHSA-2026:36957)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:36957 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: net/sched: ets: Always remove...

The vulnerability of the ets_qdisc_change() function in the net/sched/sch_ets.c module of the network/sched/sch_ets subsystem of the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the etsqdiscchange function in the net/sched/schets.c file, within the network scheduling subsystem of the Linux kernel, is related to the reutilization of previously freed memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality,...

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2026-50374)

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-50374 advisory. - net/sched: fix pedit partial COW leading to page cache corruption Rajat Gupta Orabug: 39680880 CVE-2026-46331 - net: skbuff: fix missing zerocop...

Unbreakable Enterprise kernel security update

5.15.0-322.203.3.2 - KVM: x86/mmu: Ensure hugepage is in by slot before checking max mapping level Sean Christopherson Orabug: 39673886 - KVM: x86: Fix shadow paging use-after-free due to unexpected role Paolo Bonzini Orabug: 39673886 - KVM: x86: Fix shadow paging use-after-free due to unexpected...

net/sched: netem: fix queue limit check to include reordered packets

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SUSE CVE-2026-52984

In the Linux kernel, the following vulnerability has been resolved: net/sched: netem: fix queue limit check to include reordered packets The queue limit check in netemenqueue uses q-tlen which only counts packets in the internal tfifo. Packets placed in sch-q by the reorder path qdiscenqueuehead...

SUSE CVE-2026-53011

In the Linux kernel, the following vulnerability has been resolved: net/sched: taprio: fix use-after-free in advancesched on schedule switch In advancesched, when shouldchangeschedules returns true, switchschedules is called to promote the admin schedule to oper. switchschedules queues the old op...

SUSE-SU-2026:22279-1 Security update for the Linux Kernel (Live Patch 4 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.9.1 fixes various security issues The following security issues were fixed: - CVE-2026-23278: netfilter: nftables: always walk all pending catchall elements bsc1260907. - CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay...

UBUNTU-CVE-2026-53264

In the Linux kernel, the following vulnerability has been resolved: net/sched: actapi: use RCU with deferred freeing for action lifecycle When NEWTFILTER and DELFILTER are run concurrently it is possible to create a race with an associated action. Let's illustrate with CPU0 running NEWTFILTER and...

CVE-2026-53264

In the Linux kernel, the following vulnerability has been resolved: net/sched: actapi: use RCU with deferred freeing for action lifecycle When NEWTFILTER and DELFILTER are run concurrently it is possible to create a race with an associated action. Let's illustrate with CPU0 running NEWTFILTER and...

CVE-2026-53264 net/sched: act_api: use RCU with deferred freeing for action lifecycle

In the Linux kernel, the following vulnerability has been resolved: net/sched: actapi: use RCU with deferred freeing for action lifecycle When NEWTFILTER and DELFILTER are run concurrently it is possible to create a race with an associated action. Let's illustrate with CPU0 running NEWTFILTER and...

CVE-2026-53264 net/sched: act_api: use RCU with deferred freeing for action lifecycle

In the Linux kernel, the following vulnerability has been resolved: net/sched: actapi: use RCU with deferred freeing for action lifecycle When NEWTFILTER and DELFILTER are run concurrently it is possible to create a race with an associated action. Let's illustrate with CPU0 running NEWTFILTER and...

PT-2026-52359

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the net/sched component when NEWTFILTER and DELFILTER operations are executed concurrently. This occurs because an action can be freed immediately via kfree...

CVE-2026-53014

In the Linux kernel, the following vulnerability has been resolved: net/sched: actmirred: fix wrong device for macheaderxmit check in tcfblockcastredir In tcfblockcastredir, when iterating block ports to redirect packets to multiple devices, the macheaderxmit flag is queried from the wrong device...

EUVD-2026-38948

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsfw: fix NULL dereference of "old" filters before change Like pointed out by Sashiko 1, since commit ed76f5edccc9 "net: sched: protect filterchain list with filterchainlock mutex" TC filters are added to a shared blo...

CVE-2026-53080

CVE-2026-53080 affects the Linux kernel net/sched cls_fw. Description in connected advisories shows that a NULL dereference could occur for old-style filters during shared-block publication, leading to a crash/warn during packet classification. The fix skips “old-style” classification on shared b...