PT-2026-94426

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description Issues exist in the tcf skbmod act function regarding length calculations and header handling. The function incorrectly assumes the transport header is set when calling skb network heade...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: Skip non-Ethernet packets Currently, tcfskbmodact assumes that packets use Ethernet as their L2 protocol. This assumption is not always true. For example, for CAN devices: bash $ ip link add dev vcan0 type...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: net/sched: actskbmod: prevent kernel-infoleak The syzbot discovered that tcfskbmoddump was copying four bytes from the kernel stack to user space 1. The issue here is that ‘struct tcskbmod’ has a four-byte hole. We need to cle...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-007052)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007052 advisory. In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: prevent kernel-infoleak syzbot found that tcfskbmoddump was copying four...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-006810)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006810 advisory. In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: prevent kernel-infoleak syzbot found that tcfskbmoddump was copying four...

The vulnerability of the tcf_skbmod_act() function in the net/sched/act_skbmod.c module of the network scheduling subsystem of the Linux operating system allows a hacker to cause a service failure.

The vulnerability of the tcfskbmodact function in the net/sched/actskbmod.c module of the net/sched subsystem of the Linux operating system is related to insufficient validation of input data. Exploiting this vulnerability could allow an attacker to cause a service failure...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989348)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989348 advisory. In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: Skip non-Ethernet packets Currently tcfskbmodact assumes that packets use...

Siemens SIMATIC Devices Use of Uninitialized Resource (CVE-2024-35893)

In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: prevent kernel-infoleak syzbot found that tcfskbmoddump was copying four bytes from kernel stack to user space. The issue here is that 'struct tcskbmod' has a four bytes hole. We need to clear the structure...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-987190)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-987190 advisory. In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: Skip non-Ethernet packets Currently tcfskbmodact assumes that packets use...

Linux Distros Unpatched Vulnerability : CVE-2024-35893

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/sched: actskbmod: prevent kernel-infoleak syzbot found that tcfskbmoddump was copying four bytes from kernel stack to user space 1. The issue here is that...

Vulnerability of components of Linux operating system’s kernel’s net/sched module, allowing a hacker to cause a service failure

The vulnerability of the net/sched component of the Linux operating system’s kernel is related to the lack of memory release after the effective service life in the tcfskbmoddump function. Exploiting this vulnerability can allow an attacker to cause a service failure...

kernel: net/sched: act_skbmod: prevent kernel-infoleak

In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: prevent kernel-infoleak syzbot found that tcfskbmoddump was copying four bytes from kernel stack to user space 1. The issue here is that 'struct tcskbmod' has a four bytes hole. We need to clear the structur...

kernel: net/sched: act_skbmod: prevent kernel-infoleak

In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: prevent kernel-infoleak syzbot found that tcfskbmoddump was copying four bytes from kernel stack to user space 1. The issue here is that 'struct tcskbmod' has a four bytes hole. We need to clear the structur...

kernel: net/sched: act_skbmod: Skip non-Ethernet packets

A vulnerability was found in the Linux kernel’s actskbmod module, where the tcfskbmodact function mistakenly assumes all packets use Ethernet as their protocol. This issue can lead to the corruption of non-Ethernet packets, such as those from CAN devices, if skbmod actions are incorrectly applied...

CVE-2021-47293

In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: Skip non-Ethernet packets Currently tcfskbmodact assumes that packets use Ethernet as their L2 protocol, which is not always the case. As an example, for CAN devices: $ ip link add dev vcan0 type vcan $ ip...

SUSE CVE-2021-47293

In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: Skip non-Ethernet packets Currently tcfskbmodact assumes that packets use Ethernet as their L2 protocol, which is not always the case. As an example, for CAN devices: $ ip link add dev vcan0 type vcan $ ip...

CVE-2021-47293

In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: Skip non-Ethernet packets Currently tcfskbmodact assumes that packets use Ethernet as their L2 protocol, which is not always the case. As an example, for CAN devices: $ ip link add dev vcan0 type vcan $ ip...

CVE-2021-47293

In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: Skip non-Ethernet packets Currently tcfskbmodact assumes that packets use Ethernet as their L2 protocol, which is not always the case. As an example, for CAN devices: $ ip link add dev vcan0 type vcan $ ip...

CVE-2021-47293 net/sched: act_skbmod: Skip non-Ethernet packets

In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: Skip non-Ethernet packets Currently tcfskbmodact assumes that packets use Ethernet as their L2 protocol, which is not always the case. As an example, for CAN devices: $ ip link add dev vcan0 type vcan $ ip...

SUSE CVE-2024-35893

In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: prevent kernel-infoleak syzbot found that tcfskbmoddump was copying four bytes from kernel stack to user space 1. The issue here is that 'struct tcskbmod' has a four bytes hole. We need to clear the structur...