Important: kernel

Issue Overview: Insufficient control flow management for the IntelR 82599 Ethernet Controllers and Adapters may allow an authenticated user to potentially enable denial of service via local access. CVE-2021-33061 In the Linux kernel, the following vulnerability has been resolved: smb: client: fix...

The vulnerability of the netem component in the Linux operating system’s kernel allows a hacker to gain elevated privileges within the system.

The vulnerability of the netem component in the Linux operating system’s kernel is related to errors that occur after decompression. Exploiting this vulnerability can allow an attacker to gain elevated privileges within the system...

SUSE CVE-2025-21703

In the Linux kernel, the following vulnerability has been resolved: netem: Update sch-q.qlen before qdisctreereducebacklog qdisctreereducebacklog notifies parent qdisc only if child qdisc becomes empty, therefore we need to reduce the backlog of the child qdisc before calling it. Otherwise it wou...

AZL-58965 CVE-2025-21703 affecting package kernel for versions less than 5.15.180.1-1

In the Linux kernel, the following vulnerability has been resolved: netem: Update sch-q.qlen before qdisctreereducebacklog qdisctreereducebacklog notifies parent qdisc only if child qdisc becomes empty, therefore we need to reduce the backlog of the child qdisc before calling it. Otherwise it wou...

DEBIAN-CVE-2025-21703

In the Linux kernel, the following vulnerability has been resolved: netem: Update sch-q.qlen before qdisctreereducebacklog qdisctreereducebacklog notifies parent qdisc only if child qdisc becomes empty, therefore we need to reduce the backlog of the child qdisc before calling it. Otherwise it wou...

CVE-2025-21703

In the Linux kernel, the following vulnerability has been resolved: netem: Update sch-q.qlen before qdisctreereducebacklog qdisctreereducebacklog notifies parent qdisc only if child qdisc becomes empty, therefore we need to reduce the backlog of the child qdisc before calling it. Otherwise it wou...

UBUNTU-CVE-2025-21703

In the Linux kernel, the following vulnerability has been resolved: netem: Update sch-q.qlen before qdisctreereducebacklog qdisctreereducebacklog notifies parent qdisc only if child qdisc becomes empty, therefore we need to reduce the backlog of the child qdisc before calling it. Otherwise it wou...

CVE-2025-21703 netem: Update sch->q.qlen before qdisc_tree_reduce_backlog()

In the Linux kernel, the following vulnerability has been resolved: netem: Update sch-q.qlen before qdisctreereducebacklog qdisctreereducebacklog notifies parent qdisc only if child qdisc becomes empty, therefore we need to reduce the backlog of the child qdisc before calling it. Otherwise it wou...

CVE-2025-21703

In the Linux kernel, the following vulnerability has been resolved: netem: Update sch-q.qlen before qdisctreereducebacklog qdisctreereducebacklog notifies parent qdisc only if child qdisc becomes empty, therefore we need to reduce the backlog of the child qdisc before calling it. Otherwise it wou...

CVE-2025-21703 netem: Update sch->q.qlen before qdisc_tree_reduce_backlog()

In the Linux kernel, the following vulnerability has been resolved: netem: Update sch-q.qlen before qdisctreereducebacklog qdisctreereducebacklog notifies parent qdisc only if child qdisc becomes empty, therefore we need to reduce the backlog of the child qdisc before calling it. Otherwise it wou...

CVE-2025-21703: Use After Free

In the Linux kernel, the following vulnerability has been resolved: netem: Update sch-q.qlen before qdisctreereducebacklog qdisctreereducebacklog notifies parent qdisc only if child qdisc becomes empty, therefore we need to reduce the backlog of the child qdisc before calling it. Otherwise it wou...

Security update for the Linux Kernel (Live Patch 17 for SLE 15 SP5)

This update for the Linux Kernel 5.14.21-1505005573 fixes several issues. The following security issues were fixed: CVE-2024-45016: netem: fix return value if duplicate enqueue fails bsc1230998. CVE-2022-48912: Fix use-after-free in nfregisternethook bsc1229641 CVE-2024-47684: tcp: check skb is...

Security update for the Linux Kernel (Live Patch 14 for SLE 15 SP5)

This update for the Linux Kernel 5.14.21-1505005565 fixes several issues. The following security issues were fixed: CVE-2024-45016: netem: fix return value if duplicate enqueue fails bsc1230998. CVE-2022-48912: Fix use-after-free in nfregisternethook bsc1229641 CVE-2022-48923: btrfs: prevent...

Security update for the Linux Kernel (Live Patch 26 for SLE 15 SP4)

This update for the Linux Kernel 5.14.21-15040024119 fixes several issues. The following security issues were fixed: CVE-2024-45016: netem: fix return value if duplicate enqueue fails bsc1230998. CVE-2022-48912: Fix use-after-free in nfregisternethook bsc1229641 CVE-2022-48923: btrfs: prevent...

Security update for the Linux Kernel (Live Patch 49 for SLE 15 SP3)

This update for the Linux Kernel 5.3.18-15030059179 fixes several issues. The following security issues were fixed: CVE-2024-45016: netem: fix return value if duplicate enqueue fails bsc1230998. CVE-2024-47684: tcp: check skb is non-NULL in tcprtodeltaus bsc1231993. Patch Instructions: To install...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: sch/netem: fixed the use of memory after deallocation in netemdequeue. If netemdequeue enqueues a packet to an inner qdisc, and that qdisc returns NETXMITSTOLEN. As a result, the packet is dropped, but qdisctreereducebacklog i...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net/sched: netem: account for backlog updates from child qdisc Generally, the qlen of any classful qdisc should reflect the number of packets held by the qdisc itself and all its children. In the case of netem, qlen only accounts...

Security update for the Linux Kernel (Live Patch 62 for SLE 12 SP5)

This update for the Linux Kernel 4.12.14-122234 fixes one issue. The following security issue was fixed: CVE-2024-45016: netem: fix return value if duplicate enqueue fails bsc1230998. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST...

Security update for the Linux Kernel RT (Live Patch 4 for SLE 15 SP6)

This update for the Linux Kernel 6.4.0-1506001014 fixes several issues. The following security issues were fixed: CVE-2024-45016: netem: fix return value if duplicate enqueue fails bsc1230998. CVE-2024-47684: tcp: check skb is non-NULL in tcprtodeltaus bsc1231993. Patch Instructions: To install...

PT-2025-6939

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to the fixed version Description: A vulnerability in the Linux kernel has been resolved, specifically in the netem module. The issue arises from the qdisc tree reduce backlog function not notifying the parent qdisc...