PT-2026-32347

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL pointer dereference occurs in the fw classify function when an empty cls fw filter is attached to a shared block and a packet with a nonzero major skb mark is classified. This...

Linux Distros Unpatched Vulnerability : CVE-2026-31421

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/sched: clsfw: fix NULL pointer dereference on shared blocks The old-method path in fwclassify calls tcfblockq and dereferences q-handle. Shared blocks leave...

SUSE-SU-2026:1248-1 Security update for the Linux Kernel (Live Patch 28 for SUSE Linux Enterprise 15 SP5)

This update for the SUSE Linux Enterprise Kernel 5.14.21-150500.55.113 fixes various security issues The following security issues were fixed: - CVE-2025-39973: i40e: add validation for ringlen param bsc1252036. - CVE-2025-40018: ipvs: Defer ipvsftp unregister during netns cleanup bsc1252689. -...

SUSE-SU-2026:1237-1 Security update for the Linux Kernel (Live Patch 47 for SUSE Linux Enterprise 15 SP4)

This update for the SUSE Linux Enterprise Kernel 5.14.21-150400.24.187 fixes various security issues The following security issues were fixed: - CVE-2025-71120: SUNRPC: svcauthgss: avoid NULL deref on zero length gsstoken in gssreadproxyverf bsc1256780. - CVE-2026-22999: net/sched: schqfq: do not...

SUSE-SU-2026:21088-1 Security update for the Linux Kernel RT (Live Patch 8 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise Kernel 6.4.0-31.1 fixes various security issues The following security issues were fixed: - CVE-2025-39973: i40e: add validation for ringlen param bsc1252036. - CVE-2025-40018: ipvs: Defer ipvsftp unregister during netns cleanup bsc1252689. -...

SUSE-SU-2026:21071-1 Security update for the Linux Kernel (Live Patch 14 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise Kernel 6.4.0-38.1 fixes various security issues The following security issues were fixed: - CVE-2025-71120: SUNRPC: svcauthgss: avoid NULL deref on zero length gsstoken in gssreadproxyverf bsc1256780. - CVE-2026-22999: net/sched: schqfq: do not free...

Security update for the Linux Kernel (Live Patch 30 for SUSE Linux Enterprise 15 SP5)

This update for the SUSE Linux Enterprise Kernel 5.14.21-150500.55.121 fixes various security issues The following security issues were fixed: CVE-2025-39973: i40e: add validation for ringlen param bsc1252036. CVE-2025-40018: ipvs: Defer ipvsftp unregister during netns cleanup bsc1252689...

RHEL 10 : kernel (RHSA-2026:6632)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:6632 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Linux kernel net/mlx5:...

SUSE-SU-2026:1185-1 Security update for the Linux Kernel RT (Live Patch 5 for SUSE Linux Enterprise 15 SP7)

This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.7.19 fixes various security issues The following security issues were fixed: - CVE-2025-39973: i40e: add validation for ringlen param bsc1252036. - CVE-2025-40018: ipvs: Defer ipvsftp unregister during netns cleanup bsc1252689. -...

ALSA-2026:6036 Moderate: kernel-rt security update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: Linux kernel: Use-After-Free vulnerability in ATM subsystem CVE-2025-38180 kernel: macvlan: fix error recovery in...

SUSE-SU-2026:1130-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security bugfixes. The following security bugs were fixed: - CVE-2021-47110: Fixed possible memory corruption when restoring from hibernation in x86/kvm bsc1221532. - CVE-2025-21738: ata: libata-sff: Ensure that we cannot writ...

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

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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...

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...

ROS-20260323-73-0032

A vulnerability in the net/sched component of the Linux kernel is related to uncontrolled recursion. Exploitation of the vulnerability allows an attacker to cause a denial of service...

net/sched: act_gate: snapshot parameters with RCU on replace

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CVE-2026-23245

In the Linux kernel, the following vulnerability has been resolved: net/sched: actgate: snapshot parameters with RCU on replace The gate action can be replaced while the hrtimer callback or dump path is walking the schedule list. Convert the parameters to an RCU-protected snapshot and swap update...

net/sched: sch_qfq: do not free existing class in qfq_change_class()

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net/sched: sch_qfq: Fix NULL deref when deactivating inactive aggregate in qfq_reset

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CVE-2026-23064

In the Linux kernel, the following vulnerability has been resolved: net/sched: actife: avoid possible NULL deref tcfifeencode must make sure ifeencode does not return NULL. syzbot reported: Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 1 SMP KASAN NOP...