Linux netem_enqueue Heap Buffer Overflow DoS

The vulnerability of the netemenqueue function in the net/sched/schnetem.c module of the Linux operating system’s network scheduling subsystem is related to the execution of a loop with an unreachable exit condition an “infinite loop”. Exploiting this vulnerability could allow a remote attacker t...

Linux Kernel Netem DoS

The vulnerability in the netemenqueue function within net/sched/schnetem.c, a part of the net/sched subsystem in the Linux kernel, leads to unrestricted resource allocation. Exploitation of this vulnerability may allow an attacker to cause a denial of service...

Linux netem_enqueue Heap Buffer Overflow DoS

The vulnerability of the netemenqueue function in the net/sched/schnetem.c module of the Linux operating system’s network scheduling subsystem is related to the execution of operations outside of memory buffers. Exploiting this vulnerability could allow an attacker to compromise the...

CVE-2026-31675 net/sched: sch_netem: fix out-of-bounds access in packet corruption

In the Linux kernel, the following vulnerability has been resolved: net/sched: schnetem: fix out-of-bounds access in packet corruption In netemenqueue, the packet corruption logic uses getrandomu32belowskbheadlenskb to select an index for modifying skb-data. When an AFPACKET TXRING sends fully...

CVE-2026-31675: Out-of-bounds Read

In the Linux kernel, the following vulnerability has been resolved: net/sched: schnetem: fix out-of-bounds access in packet corruption In netemenqueue, the packet corruption logic uses getrandomu32belowskbheadlenskb to select an index for modifying skb-data. When an AFPACKET TXRING sends fully...

Linux netem_dequeue Heap Buffer Overflow DoS

The vulnerability of the netemdequeue function in the net/sched/schnetem.c module of the Linux operating system’s network scheduling subsystem is related to the reutilization of previously released memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality,...

CVE-2025-21703

In the Linux kernel, the following vulnerability has been resolved: netem: Update sch-q.qlen before qdisctreereducebacklog qdisctreereducebacklog notifies parent qdisc only if child qdisc becomes empty, therefore we need to reduce the backlog of the child qdisc before calling it. Otherwise it wou...

CVE-2021-47606: Divide By Zero

In the Linux kernel, the following vulnerability has been resolved: net: netlink: afnetlink: Prevent empty skb by adding a check on len. Adding a check on len parameter to avoid empty skb. This prevents a division error in netemenqueue function which is caused when skb-len=0 and skb-datalen=0 in...