CVE-2026-98427

A flaw was found in the Linux kernel's CoDel Controlled Delay network packet scheduling subsystem. An unprivileged local user can trigger a Denial of Service DoS by configuring extremely small packet intervals on network queues. This flaw causes the packet-dropping logic to enter an unbounded loo...

DEBIAN-CVE-2026-98427

In the Linux kernel, the following vulnerability has been resolved: net/sched: codel: bound the dropping loop per dequeue call The CoDel control law schedules the next drop one interval/sqrtcount after the previous drop, using the configured interval codelparams.interval. For very small intervals...

CVE-2026-98427

In the Linux kernel, the following vulnerability has been resolved: net/sched: codel: bound the dropping loop per dequeue call The CoDel control law schedules the next drop one interval/sqrtcount after the previous drop, using the configured interval codelparams.interval. For very small intervals...

CVE-2026-98427 net/sched: codel: bound the dropping loop per dequeue call

In the Linux kernel, the following vulnerability has been resolved: net/sched: codel: bound the dropping loop per dequeue call The CoDel control law schedules the next drop one interval/sqrtcount after the previous drop, using the configured interval codelparams.interval. For very small intervals...

CVE-2026-98427

A vulnerability exists in the Linux kernel 's net/sched subsystem involving the CoDel (Controlled Delay) control law. When configured with very small intervals (e.g., 2us), the scheduled dropping step rounds down to zero, causing the dropping loop in codel_dequeue() to never advance. This allows ...

CVE-2026-98427

In the Linux kernel, the following vulnerability has been resolved: net/sched: codel: bound the dropping loop per dequeue call The CoDel control law schedules the next drop one interval/sqrtcount after the previous drop, using the configured interval codelparams.interval. For very small intervals...

EUVD-2026-101076

In the Linux kernel, the following vulnerability has been resolved: net/sched: codel: bound the dropping loop per dequeue call The CoDel control law schedules the next drop one interval/sqrtcount after the previous drop, using the configured interval codelparams.interval. For very small intervals...

CVE-2026-98427 net/sched: codel: bound the dropping loop per dequeue call

In the Linux kernel, the following vulnerability has been resolved: net/sched: codel: bound the dropping loop per dequeue call The CoDel control law schedules the next drop one interval/sqrtcount after the previous drop, using the configured interval codelparams.interval. For very small intervals...

PT-2026-114406

In the Linux kernel, the following vulnerability has been resolved: net/sched: codel: bound the dropping loop per dequeue call The CoDel control law schedules the next drop one interval/sqrtcount after the previous drop, using the configured interval codel params.interval. For very small interval...

CVE-2026-98427

In the Linux kernel, the following vulnerability has been resolved: net/sched: codel: bound the dropping loop per dequeue call The CoDel control law schedules the next drop one interval/sqrtcount after the previous drop, using the configured interval codelparams.interval. For very small intervals...

CoDeL: Co-Evolutionary Defense against Indirect Prompt Injection in LLM-Based Agents

Large language model LLM-based agents increasingly rely on external tools and content, exposing them to indirect prompt injection IPI. This threat has motivated a wide range of defenses, among which training-based defenses are often regarded as most reliable. However, existing training-based...

CVE-2026-90075

In the Linux kernel , the fq_codel qdisc (net/sched) fails to clamp the default quantum and codel mtu derived from psched_mtu(). A device whose MTU wraps the value into the sign bit (e.g., a dummy device with max_mtu == 0 accepting MTU 2147483634) causes two distinct failures: (1) the signed flow...

CVE-2026-90075 net/sched: fq_codel: clamp default quantum and mtu

In the Linux kernel, the following vulnerability has been resolved: net/sched: fqcodel: clamp default quantum and mtu fqcodelinit sets q-quantum = pschedmtuqdiscdevsch without clamping. A device with a huge MTU e.g. dummy with maxmtu == 0 accepting MTU 2147483634 makes pschedmtu return 0x80000000...

PT-2026-94423

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the fq codel init function where the q-quantum and q-cparams.mtu values are set using psched mtu without proper clamping. When a device is configured with an excessive...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, 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 cautious regarding silly GSO requests from user space”, the virtionethdrtoskb function added sanity checks to detect...

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

In the Linux kernel, the following vulnerability has been resolved: codel: The check sch-q.qlen was removed before the call to qdisctreereducebacklog. After making all -qlennotify calls idempotent, it is now safe to remove the check for qlen!=0 from both fqcodeldequeue and codelqdiscdequeue...

EUVD-2026-67506

In the Linux kernel, the following vulnerability has been resolved: net/sched: schfqcodel: Do not call qdisctreereducebacklog during peek before restoring qlen Whenever fqcodel drops packets during peek, it calls qdisctreereducebacklog. An issue arises because it calls qdisctreereducebacklog befo...

CVE-2026-80630 net/sched: sch_fq_codel: Do not call qdisc_tree_reduce_backlog during peek before restoring qlen

In the Linux kernel, the following vulnerability has been resolved: net/sched: schfqcodel: Do not call qdisctreereducebacklog during peek before restoring qlen Whenever fqcodel drops packets during peek, it calls qdisctreereducebacklog. An issue arises because it calls qdisctreereducebacklog befo...

PT-2026-82930

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the sch fq codel scheduler where qdisc tree reduce backlog is called during a peek operation before the qlen variable is restored. If qlen drops to zero while the peek...

PT-2026-72703

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the sch codel component of the network scheduler. When dropping packets during a peek operation, the system calls the qdisc tree reduce backlog function before restori...