Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: netsched: qfq: A double addition of a classifier was corrected in the class, where netem is a child qdisc. As described in Gerrard’s report 1, there are use cases where a netem child qdisc can make the parent qdisc’s enqueue...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

A flaw was discovered in the Linux kernel’s networking code. A use-after-free occurred in the way the schsfb enqueue function utilized the socket buffer SKB cb field after the same SKB had been enqueued and freed into a child qdisc. This flaw allows a local, unprivileged user to cause a system...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-107329)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-107329 advisory. In the Linux kernel, the following vulnerability has been resolved: net/sched: netem: account for backlog updates from child qdisc In general, 'qlen' of any classful...

CVE-2026-64012 net/sched: sch_sfb: Replace direct dequeue call with peek and qdisc_dequeue_peeked

In the Linux kernel, the following vulnerability has been resolved: net/sched: schsfb: Replace direct dequeue call with peek and qdiscdequeuepeeked When sfb has children eg qfq qdisc whose peek callback is qdiscpeekdequeued, we could get a kernel panic. When the parent of such qdiscs eg illustrat...

Linux Distros Unpatched Vulnerability : CVE-2026-43496

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/sched: schred: Replace direct dequeue call with peek and qdiscdequeuepeeked When red qdisc has children eg qfq qdisc whose peek callback is qdiscpeekdequeue...

EUVD-2026-31274

In the Linux kernel, the following vulnerability has been resolved: net/sched: schred: Replace direct dequeue call with peek and qdiscdequeuepeeked When red qdisc has children eg qfq qdisc whose peek callback is qdiscpeekdequeued, we could get a kernel panic. When the parent of such qdiscs eg...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013480)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013480 advisory. In the Linux kernel, the following vulnerability has been resolved: netsched: hfsc: Fix a UAF vulnerability in class with netem as child qdisc As described in...

Unity Linux 20.1050e / 20.1070e Security Update: kernel (UTSA-2026-011390)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011390 advisory. In the Linux kernel, the following vulnerability has been resolved: netsched: qfq: Fix double list add in class with netem as child qdisc As described in Gerrard's...

AZL-77223 CVE-2026-23105 affecting package kernel for versions less than 6.6.126.1-1

In the Linux kernel, the following vulnerability has been resolved: net/sched: qfq: Use clisactive to determine whether class is active in qfqrmfromag This is more of a preventive patch to make the code more consistent and to prevent possible exploits that employ child qlen manipulations on qfq...

RHEL 9 : kernel-rt (RHSA-2025:17735)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:17735 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism...

EUVD-2025-11821

Malicious code in bioql PyPI...

EUVD-2025-15944

Malicious code in bioql PyPI...

kernel: net/sched: Always pass notifications when child class becomes empty

A use-after-free UAF vulnerability was found in the Linux kernel's net/sched subsystem, specifically in the Credit-Based Shaper CBS qdisc implementation schcbs. The vulnerability occurs because the CBS qdisc's reset function qdiscresetqueue only resets its internal queue but fails to reset its...

SUSE-SU-2025:03223-1 Security update for the Linux Kernel (Live Patch 3 for SLE 15 SP6)

This update for the Linux Kernel 6.4.0-1506002317 fixes several issues. The following security issues were fixed: - CVE-2025-38087: net/sched: fix use-after-free in tapriodevnotifier bsc1245504. - CVE-2025-21999: proc: fix UAF in procgetinode bsc1242579. - CVE-2025-38001: netsched: hfsc: Address...

SUSE-SU-2025:03212-1 Security update for the Linux Kernel (Live Patch 10 for SLE 15 SP6)

This update for the Linux Kernel 6.4.0-1506002347 fixes several issues. The following security issues were fixed: - CVE-2025-38087: net/sched: fix use-after-free in tapriodevnotifier bsc1245504. - CVE-2025-21999: proc: fix UAF in procgetinode bsc1242579. - CVE-2025-38001: netsched: hfsc: Address...

SUSE-SU-2025:03186-1 Security update for the Linux Kernel (Live Patch 19 for SLE 15 SP5)

This update for the Linux Kernel 5.14.21-1505005580 fixes several issues. The following security issues were fixed: - CVE-2025-21999: proc: fix UAF in procgetinode bsc1242579. - CVE-2022-49053: scsi: target: tcmu: Fix possible page UAF bsc1237930. - CVE-2025-38001: netsched: hfsc: Address reentra...

SUSE-SU-2025:03180-1 Security update for the Linux Kernel (Live Patch 33 for SLE 15 SP4)

This update for the Linux Kernel 5.14.21-15040024141 fixes several issues. The following security issues were fixed: - CVE-2025-21999: proc: fix UAF in procgetinode bsc1242579. - CVE-2022-49053: scsi: target: tcmu: Fix possible page UAF bsc1237930. - CVE-2025-38001: netsched: hfsc: Address...

SUSE-SU-2025:20712-1 Security update for kernel-livepatch-MICRO-6-0_Update_5

This update for kernel-livepatch-MICRO-6-0Update5 fixes the following issues: - CVE-2025-38087: net/sched: fix use-after-free in tapriodevnotifier bsc1245505 - CVE-2025-21999: proc: fix UAF in procgetinode bsc1242579 - CVE-2025-38001: netsched: hfsc: Address reentrant enqueue adding class to eltr...

Security update for kernel-livepatch-MICRO-6-0_Update_6

This update for kernel-livepatch-MICRO-6-0Update6 fixes the following issues: CVE-2025-38087: net/sched: fix use-after-free in tapriodevnotifier bsc1245505 CVE-2025-21999: proc: fix UAF in procgetinode bsc1242579 CVE-2025-38001: netsched: hfsc: Address reentrant enqueue adding class to eltree twi...

SUSE-SU-2025:20704-1 Security update for kernel-livepatch-MICRO-6-0-RT_Update_4

This update for kernel-livepatch-MICRO-6-0-RTUpdate4 fixes the following issues: - CVE-2025-38087: net/sched: fix use-after-free in tapriodevnotifier bsc1245505 - CVE-2025-21999: proc: fix UAF in procgetinode bsc1242579 - CVE-2025-38001: netsched: hfsc: Address reentrant enqueue adding class to...