kernel: net/sched: act_api: use RCU with deferred freeing for action lifecycle

A flaw was found in the Linux kernel's networking scheduler. A race condition, which is a problem that occurs when multiple operations try to access the same resource at the same time, exists when network filter operations are run concurrently. This can lead to a Use-After-Free UAF vulnerability,...

RHEL 9 : kernel (RHSA-2026:54515)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:54515 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: net/sched: actapi: use RCU with deferr...

RHEL 9 : kernel-rt (RHSA-2026:55443)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:55443 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-100124)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100124 advisory. In the Linux kernel, the following vulnerability has been resolved: netfilter: nftct: fix use-after-free in timeout object destroy nftcttimeoutobjdestroy frees the...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100698)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100698 advisory. In the Linux kernel, the following vulnerability has been resolved: vrf: Fix a potential NPD when removing a port from a VRF RCU readers that identified a net device...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-099961)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099961 advisory. In the Linux kernel, the following vulnerability has been resolved: net: qrtr: fix refcount saturation and potential UAF in qrtrportremove In qrtrportremove, the...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100720)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100720 advisory. In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: Only release RCU read lock after ctft When looking up a flow table in actct in...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-099701)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099701 advisory. In the Linux kernel, the following vulnerability has been resolved: net: qualcomm: rmnet: fix endpoint use-after-free in rmnetdellink rmnetdellink removes the endpoi...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100494)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100494 advisory. In the Linux kernel, the following vulnerability has been resolved: ipv4: igmp: remove multicast group from hash table on device destruction When a device is destroy...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100759)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100759 advisory. In the Linux kernel, the following vulnerability has been resolved: drbd: Balance RCU calls in drbdadmdumpdevices Make drbdadmdumpdevices call rcureadlock before...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100733)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100733 advisory. In the Linux kernel, the following vulnerability has been resolved: ipvs: clear the svc scheduler ptr early on edit ipvseditservice while unbinding the old scheduler...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100766)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100766 advisory. In the Linux kernel, the following vulnerability has been resolved: net: qrtr: fix refcount saturation and potential UAF in qrtrportremove In qrtrportremove, the...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100727)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100727 advisory. 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...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-099894)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099894 advisory. In the Linux kernel, the following vulnerability has been resolved: net: ipv6: flowlabel: defer exclusive option free until RCU teardown ip6flseqshow walks the globa...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-099691)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099691 advisory. In the Linux kernel, the following vulnerability has been resolved: ipv4: igmp: remove multicast group from hash table on device destruction When a device is destroy...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-099924)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099924 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf: Free reuseport cBPF prog after RCU grace period. Eulgyu Kim reported the splat below with a...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100505)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100505 advisory. In the Linux kernel, the following vulnerability has been resolved: 6lowpan: fix NHC entry use-after-free on error path lowpannhcdouncompression looks up an NHC...

RHEL 10 : kernel (RHSA-2026:55445)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:55445 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: iommu: disable SVA when...

SUSE CVE-2026-74465

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix potential UAF on meter attach failure While attaching a newly created meter attachmeter function makes the new meter visible to other CPUs but can still fail afterwards. On failure, it detaches the meter bac...

SUSE CVE-2026-74479

In the Linux kernel, the following vulnerability has been resolved: net: pktgen: fix proc entry use-after-free pktgenchangename replaces pktdev-entry while holding t-iflock. pktgenremovedevice removes the same entry before remdevfromiflist takes that lock. This allows the following interleaving:...