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...

CVE-2026-23064

CVE-2026-23064 affects the Linux kernel’s net/sched implementation, specifically the act_ife action. The vulnerability is a NULL pointer dereference in tcf_ife_encode()/ife_encode() that could trigger a general protection fault/oops when a NULL is encountered. The provided trace shows the fault p...

UBUNTU-CVE-2026-22987

In the Linux kernel, the following vulnerability has been resolved: net/sched: actapi: avoid dereferencing ERRPTR in tcfidrinfodestroy syzbot reported a crash in tcactinhw during netns teardown where tcfidrinfodestroy passed an ERRPTR-EBUSY value as a tcaction pointer, leading to an invalid...

CVE-2026-22987

In the Linux kernel, the following vulnerability has been resolved: net/sched: actapi: avoid dereferencing ERRPTR in tcfidrinfodestroy syzbot reported a crash in tcactinhw during netns teardown where tcfidrinfodestroy passed an ERRPTR-EBUSY value as a tcaction pointer, leading to an invalid...

CVE-2026-22976

In the Linux kernel, the following vulnerability has been resolved: net/sched: schqfq: Fix NULL deref when deactivating inactive aggregate in qfqreset qfqclass-leafqdisc-q.qlen 0 does not imply that the class itself is active. Two qfqclass objects may point to the same leafqdisc. This happens whe...

CLSA-2026-1768895798 kernel: Fix of 7 CVEs

fs/proc: fix uaf in procreaddirde CVE-2025-40271 - fs: fix UAF/GPF bug in nilfsmdtdestroy CVE-2022-2978 - Bluetooth: L2CAP: fix "bad unlock balance" in l2capdisconnectrsp CVE-2023-53297 - net: sched: sfb: fix null pointer access issue when sfbinit fails CVE-2022-50356 - ALSA: usb-audio: Fix size...

net/sched: ets: Remove drr class from the active list if it changes to strict

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MiracleLinux 8 : kernel-4.18.0-553.75.1.el8_10 (AXSA:2025-10889:70)

The remote MiracleLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2025-10889:70 advisory. kernel: net: usb: smsc75xx: Limit packet length to skb-len CVE-2023-53125 kernel: net/sched: Always pass notifications when child class becomes emp...

PT-2026-2547

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.18.0-rc7-00105-g7e9f13163c13-dirty Description The Linux kernel contains an issue within the ets scheduling class. When a user changes a drr class to a strict one, the code fails to check if that class is prese...