CVE-2025-21692 net: sched: fix ets qdisc OOB Indexing

In the Linux kernel, the following vulnerability has been resolved: net: sched: fix ets qdisc OOB Indexing Haowei Yan found that etsclassfromarg can index an Out-Of-Bound class in etsclassfromarg when passed clid of 0. The overflow may cause local privilege escalation. 18.852298 ------------ cut...

SUSE CVE-2025-21653

In the Linux kernel, the following vulnerability has been resolved: netsched: clsflow: validate TCAFLOWRSHIFT attribute syzbot found that TCAFLOWRSHIFT attribute was not validated. Right shitfing a 32bit integer is undefined for large shift values. UBSAN: shift-out-of-bounds in...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP3 kernel was updated to receive various security bugfixes. The following security bugs were fixed: CVE-2023-52524: Fixed possible corruption in nfc/llcp bsc1220927. CVE-2024-49925: fbdev: efifb: Register sysfs groups through driver core bsc1232224 CVE-2024-50089:...

net/sched: accept TCA_STAB only for root qdisc

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Linux Kernel Net Scheduler ATM Queuing Discipline Use-After-Free Local Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the processing of traff...

AZL-51482 CVE-2024-50039 affecting package kernel for versions less than 6.6.57.1-1

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...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP5 RT kernel was updated to receive various security bugfixes. The following security bugs were fixed: CVE-2022-48901: btrfs: do not start relocation until in progress drops are done bsc1229607. CVE-2022-48911: kabi: add nfqueuegetrefs for kabi compliance. bsc1229633...

The vulnerability of the tcf_ct_act() function in the network scheduling subsystem of the Linux operating system allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the tcfctact function in the net/sched/actct.c module of the net/sched/actct subsystem of the Linux operating system is related to the reutilization of previously freed memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity,...

EulerOS 2.0 SP8 : kernel (EulerOS-SA-2024-2476)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : IB/ipoib: Fix mcast list lockingCVE-2023-52587 netfilter: nftables: avoid overflows in nfthashbucketsCVE-2021-46992 SUNRPC: Fix a suspicious RCU...

UBUNTU-CVE-2021-47595

In the Linux kernel, the following vulnerability has been resolved: net/sched: schets: don't remove idle classes from the round-robin list Shuang reported that the following script: 1 tc qdisc add dev ddd0 handle 10: parent 1: ets bands 8 strict 4 priomap 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 2 mauseza...

Linux Kernel Net Scheduler Out-Of-Bounds Access Local Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of the Linux Kernel. An attacker must first obtain the ability to execute high-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of th...

SUSE CVE-2021-47419

In the Linux kernel, the following vulnerability has been resolved: net/sched: schtaprio: properly cancel timer from tapriodestroy There is a comment in qdisccreate about us not calling ops-reset in some cases. errout4: / Any broken qdiscs that would require a ops-reset here? The qdisc was never ...

UBUNTU-CVE-2021-47557

In the Linux kernel, the following vulnerability has been resolved: net/sched: schets: don't peek at classes beyond 'nbands' when the number of DRR classes decreases, the round-robin active list can contain elements that have already been freed in etsqdiscchange. As a consequence, it's possible t...

UBUNTU-CVE-2021-47419

In the Linux kernel, the following vulnerability has been resolved: net/sched: schtaprio: properly cancel timer from tapriodestroy There is a comment in qdisccreate about us not calling ops-reset in some cases. errout4: / Any broken qdiscs that would require a ops-reset here? The qdisc was never ...

SUSE CVE-2024-35892

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix lockdep splat in qdisctreereducebacklog qdisctreereducebacklog is called with the qdisc lock held, not RTNL. We must use qdisclookuprcu instead of qdisclookup syzbot reported: WARNING: suspicious RCU usage...

CVE-2022-48639

In the Linux kernel, the following vulnerability has been resolved: net: sched: fix possible refcount leak in tcnewtfilter tfilterput need to be called to put the refount got by tp-ops-get to avoid possible refcount leak when chain-tmpltops != NULL and chain-tmpltops != tp-ops...

kernel: net/sched: cls_fw component can be exploited as result of failure in tcf_change_indev function

A use-after-free vulnerability was found in fwsetparms in net/sched/clsfw.c in network scheduler sub-component in the Linux Kernel. This issue occurs due to a missing sanity check during cleanup at the time of failure, leading to a misleading reference. This may allow a local attacker to gain loc...

UBUNTU-CVE-2021-47175

In the Linux kernel, the following vulnerability has been resolved: net/sched: fqpie: fix OOB access in the traffic path the following script: tc qdisc add dev eth0 handle 0x1 root fqpie flows 2 tc qdisc add dev eth0 clsact tc filter add dev eth0 egress matchall action skbedit priority 0x10002 pi...

UBUNTU-CVE-2023-52610

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix skb leak and crash on ooo frags actct adds skb-users before defragmentation. If frags arrive in order, the last frag's reference is reset in: inetfragreasmprepare skbmorph which is not straightforward. Howev...

kernel: net/sched: sch_hfsc UAF

A use-after-free flaw was found in the Linux kernel's net/sched: schhfsc HFSC qdisc traffic control component that can be exploited to achieve local privilege escalation. If a class with a link-sharing curve, for example, with the HFSCFSC flag set, has a parent without a link-sharing curve, then...