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 10 : kernel (RHSA-2026:67277)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:67277 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: net: sched: UAF via missing...

Security update for the Linux Kernel (Live Patch 19 for SUSE Linux Enterprise 15 SP7)

This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.53.73 fixes various security issues: The following security issues were fixed: CVE-2026-64530: net/sched: clsapi: Handle TCACTCONSUMED in tcfqeventhand bsc1271867. CVE-2026-64600: xfs: resample the data fork mapping after cycling ILOCK...

SUSE-SU-2026:3821-1 Security update for the Linux Kernel (Live Patch 19 for SUSE Linux Enterprise 15 SP7)

This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.53.73 fixes various security issues: The following security issues were fixed: - CVE-2026-64530: net/sched: clsapi: Handle TCACTCONSUMED in tcfqeventhand bsc1271867. - CVE-2026-64600: xfs: resample the data fork mapping after cycling...

SUSE CVE-2026-74620

In the Linux kernel, the following vulnerability has been resolved: net/sched: actgact, actpolice: range check the fallback control action tcfactioncheckctrlact range checks the primary control action: if !opcode ret = action TCACTVALUEMAX ? -EINVAL : 0; TCACTVALUEMAX is TCACTTRAP, so...

AZL-97143 CVE-2026-74620 affecting package kernel for versions less than 6.6.152.1-1

In the Linux kernel, the following vulnerability has been resolved: net/sched: actgact, actpolice: range check the fallback control action tcfactioncheckctrlact range checks the primary control action: if !opcode ret = action TCACTVALUEMAX ? -EINVAL : 0; TCACTVALUEMAX is TCACTTRAP, so...

CVE-2026-74621

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix skbuff leak when the header checks reject a packet tcfcthandlefragments runs its header sanity checks before handing anything to the defragmentation engine: if family == NFPROTOIPV4 err =...

CVE-2026-74620 net/sched: act_gact, act_police: range check the fallback control action

In the Linux kernel, the following vulnerability has been resolved: net/sched: actgact, actpolice: range check the fallback control action tcfactioncheckctrlact range checks the primary control action: if !opcode ret = action TCACTVALUEMAX ? -EINVAL : 0; TCACTVALUEMAX is TCACTTRAP, so...

CVE-2026-74620 net/sched: act_gact, act_police: range check the fallback control action

In the Linux kernel, the following vulnerability has been resolved: net/sched: actgact, actpolice: range check the fallback control action tcfactioncheckctrlact range checks the primary control action: if !opcode ret = action TCACTVALUEMAX ? -EINVAL : 0; TCACTVALUEMAX is TCACTTRAP, so...

PT-2026-79625

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2-rc6 Description An issue exists in the network scheduler where the act gact and act police components fail to properly range check fallback control actions supplied by user space. Specifically, the TCA GACT...

CVE-2026-74620: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/sched: actgact, actpolice: range check the fallback control action tcfactioncheckctrlact range checks the primary control action: if !opcode ret = action TCACTVALUEMAX ? -EINVAL : 0; TCACTVALUEMAX is TCACTTRAP, so...

Linux Distros Unpatched Vulnerability : CVE-2026-74620

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/sched: actgact, actpolice: range check the fallback control action tcfactioncheckctrlact range checks the primary control action: if !opcode ret = action...

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,...

AZL-93957 CVE-2026-64530 affecting package kernel for versions less than 6.6.145.2-1

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: Undefined Security Weakness

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...