Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: schhfsc: The bug related to qlen accounting was fixed when using peek in hfscenqueue. When enqueuing the first packet to an HFSC class, hfscenqueue calls the peek operation of the child qdisc before incrementing sch-q.qlen and...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: netsched: The gsoskb list is also flushed during the -change operation. Previously, when reducing the limit of a qdisc using the -change operation, only the main skb queue was trimmed, potentially leaving packets in the gsoskb...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: netsched: drr: A double addition 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 callback reentrant. ...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: netsched: Prevent the creation of classes with TCHROOT. The function qdisctreereducebacklog uses TCHROOT as a termination condition when traversing the qdisc tree to update parent backlogs. However, if a class is created with...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: net: sched: Disallow replacing of child qdisc from one parent to another. Lion Ackermann was able to create a Use-after-Allocation UAF that can be exploited for privilege escalation using the following scripts: Step 1: Create ...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: netsched: hfsc: Fixed a potential UAF in hfscdequeue. Similarly to the previous patch, we also need to properly protect hfscdequeue. However, for this issue, we do not have a reliable way to reproduce the problem...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsapi: Fixed error handling that caused NULL dereference. The function tcfextsmisscookiebasealloc calls xaalloccyclic, which may return 1 if the allocation succeeds after wrapping. This was previously treated as an...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: netsched: skbprio: Removal of overly strict queue assertions. In the current implementation, the skbprio enqueue/dequeue operations contain assertions that fail under certain conditions when SKBPRIO is used as a child qdisc under...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: netsched: hfsc: A UAF vulnerability has been fixed in classes where netem is a child qdisc. As described in Gerrard’s report 1, there is a UAF case when an hfsc class has a netem child qdisc. The core issue is that hfsc assumes...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: schedext: Fixed an issue where picktaskscx picks non-queued tasks when it is called without balance being performed first. a6250aa251ea “schedext”: Added a workaround for cases where picktaskscx is called without preceding...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: soc: qcom: pdr: Fixed the potential deadlock issue. When some client process A calls pdraddlookup to add a lookup for the service and performs scheduling-related tasks, another process B receives a new server packet indicating th...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: drm/sched: Fixed the leak caused by referencing the fence’s reference count. The lastscheduled fence leaks occurs when an entity is being terminated, and the cleanup callback fails. The reference count of prev was decremented...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: mptcp: fixed the “scheduling while atomic” issue in mptcppmnl.AppendNewLocalAddr. If multiple connection requests attempt to create an implicit mptcp endpoint simultaneously, more than one caller may end up using...

SUSE-SU-2025:20419-1 Security update for the Linux Kernel

The SUSE Linux Enterprise Micro 6.0 and 6.1 kernel was updated to receive various security bugfixes. The following security bugs were fixed: - CVE-2023-52888: media: mediatek: vcodec: Only free buffer VA that is not NULL bsc1228557. - CVE-2024-46713: kabi fix for perf/aux: Fix AUX buffer...

SUSE-SU-2025:01948-1 Security update for the Linux Kernel (Live Patch 8 for SLE 15 SP6)

This update for the Linux Kernel 6.4.0-1506002338 fixes several issues. The following security issues were fixed: - CVE-2025-21680: pktgen: Avoid out-of-bounds access in getimixentries bsc1236701. - CVE-2024-58013: Bluetooth: MGMT: Fix slab-use-after-free Read in mgmtremoveadvmonitorsync...

Security update for the Linux Kernel (Live Patch 24 for SLE 15 SP5)

This update for the Linux Kernel 5.14.21-1505005597 fixes several issues. The following security issues were fixed: CVE-2024-58013: Bluetooth: MGMT: Fix slab-use-after-free Read in mgmtremoveadvmonitorsync bsc1239096. CVE-2024-57996: netsched: schsfq: do not allow 1 packet limit bsc1239077. Patch...

SUSE-SU-2025:20399-1 Security update for kernel-livepatch-MICRO-6-0_Update_5

This update for kernel-livepatch-MICRO-6-0Update5 fixes the following issues: - CVE-2025-21680: pktgen: avoid out-of-bounds access in getimixentries bsc1236701 - CVE-2024-58013: Bluetooth: MGMT: Fix slab-use-after-free Read in mgmtremoveadvmonitorsync bsc1239096 - CVE-2024-57996: netsched: schsfq...

Security update for kernel-livepatch-MICRO-6-0_Update_5

This update for kernel-livepatch-MICRO-6-0Update5 fixes the following issues: CVE-2025-21680: pktgen: avoid out-of-bounds access in getimixentries bsc1236701 CVE-2024-58013: Bluetooth: MGMT: Fix slab-use-after-free Read in mgmtremoveadvmonitorsync bsc1239096 CVE-2024-57996: netsched: schsfq: don'...

Security update for kernel-livepatch-MICRO-6-0_Update_4

This update for kernel-livepatch-MICRO-6-0Update4 fixes the following issues: CVE-2025-21680: pktgen: avoid out-of-bounds access in getimixentries bsc1236701 CVE-2024-58013: Bluetooth: MGMT: Fix slab-use-after-free Read in mgmtremoveadvmonitorsync bsc1239096 CVE-2024-57996: netsched: schsfq: don'...

SUSE-SU-2025:20386-1 Security update for kernel-livepatch-MICRO-6-0_Update_2

This update for kernel-livepatch-MICRO-6-0Update2 fixes the following issues: - CVE-2024-49855: nbd: fix race between timeout and normal completion bsc1232900 - CVE-2025-21680: pktgen: avoid out-of-bounds access in getimixentries bsc1236701 - CVE-2024-58013: Bluetooth: MGMT: Fix slab-use-after-fr...