CVE-2025-68325

CVE-2025-68325 schcake doesn't consider the case when cakeenqueue returns a non-null result, leading to the imbalanced qlen in the qdisc tree, triggering null-deref in its parent sched, e.g., qfq. Affected Versions Fixed at v6.19-rc1 Severity Low Patch In cakedrop, qdisctreereducebacklog is used ...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-001393)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-001393 advisory. In the Linux kernel, the following vulnerability has been resolved: sched: schcake: fix bulk flow accounting logic for host fairness In schcake, we keep track of the...

CVE-2026-74704

A flaw was found in the Linux kernel. The schcake ACK filter, responsible for processing network packets, contains a vulnerability. A remote attacker could send specially crafted malformed IP packets. This could lead to the system logging excessive warnings or, under specific configurations, caus...

SUSE CVE-2026-74704

In the Linux kernel, the following vulnerability has been resolved: net/sched: schcake: drop WARNON1 for malformed packets in ACK filter The schcake ACK filter parses packets to find the TCP header and filter duplicated ACKs if the flow is backlogged. The parsing code contains a WARNON1 which can...

AZL-97050 CVE-2026-74704 affecting package kernel for versions less than 6.6.152.1-1

In the Linux kernel, the following vulnerability has been resolved: net/sched: schcake: drop WARNON1 for malformed packets in ACK filter The schcake ACK filter parses packets to find the TCP header and filter duplicated ACKs if the flow is backlogged. The parsing code contains a WARNON1 which can...

CVE-2026-74704

In the Linux kernel, the following vulnerability has been resolved: net/sched: schcake: drop WARNON1 for malformed packets in ACK filter The schcake ACK filter parses packets to find the TCP header and filter duplicated ACKs if the flow is backlogged. The parsing code contains a WARNON1 which can...

UBUNTU-CVE-2026-74704

In the Linux kernel, the following vulnerability has been resolved: net/sched: schcake: drop WARNON1 for malformed packets in ACK filter The schcake ACK filter parses packets to find the TCP header and filter duplicated ACKs if the flow is backlogged. The parsing code contains a WARNON1 which can...

CVE-2026-74704

In the Linux kernel, the following vulnerability has been resolved: net/sched: schcake: drop WARNON1 for malformed packets in ACK filter The schcake ACK filter parses packets to find the TCP header and filter duplicated ACKs if the flow is backlogged. The parsing code contains a WARNON1 which can...

CVE-2026-74704 net/sched: sch_cake: drop WARN_ON(1) for malformed packets in ACK filter

In the Linux kernel, the following vulnerability has been resolved: net/sched: schcake: drop WARNON1 for malformed packets in ACK filter The schcake ACK filter parses packets to find the TCP header and filter duplicated ACKs if the flow is backlogged. The parsing code contains a WARNON1 which can...

EUVD-2026-64391

In the Linux kernel, the following vulnerability has been resolved: net/sched: schcake: drop WARNON1 for malformed packets in ACK filter The schcake ACK filter parses packets to find the TCP header and filter duplicated ACKs if the flow is backlogged. The parsing code contains a WARNON1 which can...

CVE-2026-74704

CVE-2026-74704 affects the Linux kernel 's sch_cake qdisc ACK filter (net/sched). The parsing code contains a WARN_ON(1) that is triggered by a malformed IP header while locating the TCP header. The code already skips the offending packet, making the warning redundant. Depending on system configu...

CVE-2026-74704 net/sched: sch_cake: drop WARN_ON(1) for malformed packets in ACK filter

In the Linux kernel, the following vulnerability has been resolved: net/sched: schcake: drop WARNON1 for malformed packets in ACK filter The schcake ACK filter parses packets to find the TCP header and filter duplicated ACKs if the flow is backlogged. The parsing code contains a WARNON1 which can...

Linux Distros Unpatched Vulnerability : CVE-2026-74704

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/sched: schcake: drop WARNON1 for malformed packets in ACK filter The schcake ACK filter parses packets to find the TCP header and filter duplicated ACKs if...

CVE-2026-74704: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/sched: schcake: drop WARNON1 for malformed packets in ACK filter The schcake ACK filter parses packets to find the TCP header and filter duplicated ACKs if the flow is backlogged. The parsing code contains a WARNON1 which can...

CVE-2026-74704: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/sched: schcake: drop WARNON1 for malformed packets in ACK filter The schcake ACK filter parses packets to find the TCP header and filter duplicated ACKs if the flow is backlogged. The parsing code contains a WARNON1 which can...

kernel: sched: sch_cake: add bounds checks to host bulk flow fairness counts

In the Linux kernel, the following vulnerability has been resolved: sched: schcake: add bounds checks to host bulk flow fairness counts Even though we fixed a logic error in the commit cited below, syzbot still managed to trigger an underflow of the per-host bulk flow counters, leading to an out ...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from a miscalculation of the schcake queue length, which could lead to a null pointer dereference...

CVE-2025-68325: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/sched: schcake: Fix incorrect qlen reduction in cakedrop In cakedrop, qdisctreereducebacklog is used to update the qlen and backlog of the qdisc hierarchy. Its caller, cakeenqueue, assumes that the parent qdisc will enqueue t...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988998)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988998 advisory. In the Linux kernel, the following vulnerability has been resolved: schcake: do not call cakedestroy from cakeinit qdiscs are not supposed to call their own destroy...

CVE-2025-21647: Out-of-bounds Read

In the Linux kernel, the following vulnerability has been resolved: sched: schcake: add bounds checks to host bulk flow fairness counts Even though we fixed a logic error in the commit cited below, syzbot still managed to trigger an underflow of the per-host bulk flow counters, leading to an out ...