kernel: net: sched: UAF via missing handler for TC_ACT_CONSUMED in tcf_qevent_handle

A flaw was found in the Linux kernel's traffic control TC classifier application programming interface API. The tcfqeventhandle function does not properly handle a consumed socket buffer skb when it is processed by the defragmentation engine. This can lead to a Use-After-Free UAF vulnerability,...

kernel: net: sched: UAF via missing handler for TC_ACT_CONSUMED in tcf_qevent_handle

A flaw was found in the Linux kernel's traffic control TC classifier application programming interface API. The tcfqeventhandle function does not properly handle a consumed socket buffer skb when it is processed by the defragmentation engine. This can lead to a Use-After-Free UAF vulnerability,...

kernel: net: sched: UAF via missing handler for TC_ACT_CONSUMED in tcf_qevent_handle

A flaw was found in the Linux kernel's traffic control TC classifier application programming interface API. The tcfqeventhandle function does not properly handle a consumed socket buffer skb when it is processed by the defragmentation engine. This can lead to a Use-After-Free UAF vulnerability,...

kernel: net: sched: UAF via missing handler for TC_ACT_CONSUMED in tcf_qevent_handle

A flaw was found in the Linux kernel's traffic control TC classifier application programming interface API. The tcfqeventhandle function does not properly handle a consumed socket buffer skb when it is processed by the defragmentation engine. This can lead to a Use-After-Free UAF vulnerability,...

RHEL 9 : kernel (RHSA-2026:49032)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:49032 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: net/sched: clsapi: Handle TCACTCONSUME...

SUSE CVE-2026-64530

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsapi: Handle TCACTCONSUMED in tcfqeventhandle tcfclassify can return TCACTCONSUMED while the skb is held by the defragmentation engine e.g. actct on out-of-order fragments. When that happens the skb is no longer owne...

UBUNTU-CVE-2026-64530

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsapi: Handle TCACTCONSUMED in tcfqeventhandle tcfclassify can return TCACTCONSUMED while the skb is held by the defragmentation engine e.g. actct on out-of-order fragments. When that happens the skb is no longer owne...

CVE-2026-64530

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsapi: Handle TCACTCONSUMED in tcfqeventhandle tcfclassify can return TCACTCONSUMED while the skb is held by the defragmentation engine e.g. actct on out-of-order fragments. When that happens the skb is no longer owne...

EUVD-2026-49051

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsapi: Handle TCACTCONSUMED in tcfqeventhandle tcfclassify can return TCACTCONSUMED while the skb is held by the defragmentation engine e.g. actct on out-of-order fragments. When that happens the skb is no longer owne...

CVE-2026-64530

CVE-2026-64530 affects the Linux kernel net/sched subsystem. The root cause is that tcf_qevent_handle() did not properly handle TC_ACT_CONSUMED, causing the skb to be returned to the caller as if classification passed, while the defragmentation engine still owned it. This led to a use-after-free ...