SUSE-SU-2025:0698-1 Security update for the Linux Kernel (Live Patch 25 for SLE 15 SP4)

This update for the Linux Kernel 5.14.21-15040024116 fixes several issues. The following security issues were fixed: - CVE-2024-35789: wifi: mac80211: check/clear fast rx for non-4addr sta VLAN changes bsc1227320. - CVE-2024-40956: dmaengine: idxd: Fix possible Use-After-Free in irqprocessworklis...

CVE-2025-21700 net: sched: Disallow replacing of child qdisc from one parent to another

In the Linux kernel, the following vulnerability has been resolved: net: sched: Disallow replacing of child qdisc from one parent to another Lion Ackermann was able to create a UAF which can be abused for privilege escalation with the following script Step 1. create root qdisc tc qdisc add dev lo...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net: Avoid potential underflow in qdiscpktleninit with UFO After committing 7c6d2ecbda83 “net: Be more gentle about silly GSO requests coming from user”, the virtionethdrtoskb function added sanity checks to detect malicious...

net: sched: use RCU read-side critical section in taprio_dump()

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CLSA-2025-1736783731 kernel: Fix of 10 CVEs

media: edia: dvbdev: fix a use-after-free CVE-2024-27043 - vsock/virtio: Initialization of the dangling pointer occurring in vsk-trans CVE-2024-50264 - net/sched: stop qdisctreereducebacklog on TCHROOT CVE-2024-53057 - bpf: Fix out-of-bounds write in triegetnextkey CVE-2024-50262 - KVM: nSVM:...

kernel: net/sched: Fix UAF when resolving a clash

A use-after-free vulnerability was found in the net/sshd tcfctflowtableprocessconn of the Linux kernel. This flaw allows an attacker with a crafted payload to induce a system crash, resulting in a loss of system availability...

CVE-2024-53164

CVE-2024-53164 affects the Linux kernel net_sched subsystem. The root cause was an incorrect ordering of qlen updates (sch->q.qlen) around qdisc_tree_reduce_backlog(), which could fail to notify parent qdiscs when a child becomes empty. The fix ensures the qlen adjustment happens before the ca...

net/sched: stop qdisc_tree_reduce_backlog on TC_H_ROOT

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kernel: net: avoid potential underflow in qdisc_pkt_len_init() with UFO

In the Linux kernel, the following vulnerability has been resolved: net: avoid potential underflow in qdiscpktleninit with UFO After commit 7c6d2ecbda83 "net: be more gentle about silly gso requests coming from user" virtionethdrtoskb had sanity check to detect malicious attempts from user space ...

kernel: net/sched: Fix mirred deadlock on device recursion

In the Linux kernel, the following vulnerability has been resolved: net/sched: Fix mirred deadlock on device recursion The Linux kernel CVE team has assigned CVE-2024-27010 to this issue. Upstream advisory: https://lore.kernel.org/linux-cve-announce/2024050148-CVE-2024-27010-5a68@gregkh/T...

kernel: net/sched: act_api: fix possible infinite loop in tcf_idr_check_alloc()

A vulnerability was found in the Linux kernel's networking subsystem in the actapi implementation within the tcfidrcheckalloc function, which lead to a possible infinite loop when multiple actions with the same index are added, causing the second request to block indefinitely while holding the...

DEBIAN-CVE-2024-50039

In the Linux kernel, the following vulnerability has been resolved: net/sched: accept TCASTAB only for root qdisc Most qdiscs maintain their backlog using qdiscpktlenskb on the assumption it is invariant between the enqueue and dequeue handlers. Unfortunately syzbot can crash a host rather easily...

kernel: net/sched: act_mirred: don't override retval if we already lost the skb

A use-after-free flaw was found in net/sched/actmirred.c in the Linux kernel. This may result in a crash...

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...

The vulnerability of the taprio_parse_mqprio_opt() function in the network/scheduler subsystem of the Linux operating system allows a attacker to compromise the integrity and accessibility of protected information.

The vulnerability of the taprioparsemqprioopt function in the net/sched/schtaprio.c module, part of the network scheduling subsystem in the Linux operating system’s kernel, is related to insufficient validation of data received from users. Exploiting this vulnerability could allow an attacker to...

kernel: net/sched: act_mirred: don't override retval if we already lost the skb

A use-after-free flaw was found in net/sched/actmirred.c in the Linux kernel. This may result in a crash...

DEBIAN-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...

kernel: net/sched: sch_qfq component can be exploited if in qfq_change_agg function happens qfq_enqueue overhead

An out-of-bounds memory write flaw was found in qfqchangeagg in net/sched/schqfq.c in the Traffic Control QoS subsystem in the Linux kernel. This flaw allows a local user to crash or potentially escalate their privileges on the system...

CVE-2024-26815

In the Linux kernel, the following vulnerability has been resolved: net/sched: taprio: proper TCATAPRIOTCENTRYINDEX check taprioparsetcentry is not correctly checking TCATAPRIOTCENTRYINDEX attribute: int tc; // Signed value tc = nlagetu32tbTCATAPRIOTCENTRYINDEX; if tc = TCQOPTMAXQUEUE...

OESA-2024-1347 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix wild memory access when clearing fragments while testing re-assembly/re-fragmentation using actct, it's possible to observe a crash like th...