kernel: sch/netem: fix use after free in netem_dequeue

A use-after-free vulnerability was found in the Linux kernel. If netemdequeue enqueues a packet to inner qdisc and that qdisc returns NETXMITSTOLEN, the packet is dropped but qdisctreereducebacklog is not called to update the parent's q.qlen...

SUSE CVE-2025-37821

In the Linux kernel, the following vulnerability has been resolved: sched/eevdf: Fix se-slice being set to U64MAX and resulting crash There is a code path in dequeueentities that can set the slice of a schedentity to U64MAX, which sometimes results in a crash. The offending case is when...

CVE-2025-37823

In the Linux kernel, the following vulnerability has been resolved: netsched: hfsc: Fix a potential UAF in hfscdequeue too Similarly to the previous patch, we need to safe guard hfscdequeue too. But for this one, we don't have a reliable reproducer...

DEBIAN-CVE-2025-37821

In the Linux kernel, the following vulnerability has been resolved: sched/eevdf: Fix se-slice being set to U64MAX and resulting crash There is a code path in dequeueentities that can set the slice of a schedentity to U64MAX, which sometimes results in a crash. The offending case is when...

DEBIAN-CVE-2025-37823

In the Linux kernel, the following vulnerability has been resolved: netsched: hfsc: Fix a potential UAF in hfscdequeue too Similarly to the previous patch, we need to safe guard hfscdequeue too. But for this one, we don't have a reliable reproducer...

UBUNTU-CVE-2025-37823

In the Linux kernel, the following vulnerability has been resolved: netsched: hfsc: Fix a potential UAF in hfscdequeue too Similarly to the previous patch, we need to safe guard hfscdequeue too. But for this one, we don't have a reliable reproducer...

UBUNTU-CVE-2025-37821

In the Linux kernel, the following vulnerability has been resolved: sched/eevdf: Fix se-slice being set to U64MAX and resulting crash There is a code path in dequeueentities that can set the slice of a schedentity to U64MAX, which sometimes results in a crash. The offending case is when...

CVE-2025-37823 net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too

In the Linux kernel, the following vulnerability has been resolved: netsched: hfsc: Fix a potential UAF in hfscdequeue too Similarly to the previous patch, we need to safe guard hfscdequeue too. But for this one, we don't have a reliable reproducer...

CVE-2025-37821 sched/eevdf: Fix se->slice being set to U64_MAX and resulting crash

In the Linux kernel, the following vulnerability has been resolved: sched/eevdf: Fix se-slice being set to U64MAX and resulting crash There is a code path in dequeueentities that can set the slice of a schedentity to U64MAX, which sometimes results in a crash. The offending case is when...

CVE-2025-37821

The CVE-2025-37821 issue in the Linux kernel’s scheduler (eevdf) caused se->slice to be set to U64_MAX during a complex dequeue sequence, leading to a large, destabilizing vruntime/vlag mismatch and a potential crash. The root cause was that, when dequeuing a delayed group entity whose parent ...

AZL-69725 CVE-2025-37798 affecting package kernel for versions less than 5.15.200.1-1

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

UBUNTU-CVE-2025-37798

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

CVE-2025-37798 codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog()

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

UBUNTU-CVE-2022-49838

In the Linux kernel, the following vulnerability has been resolved: sctp: clear outcurr if all frag chunks of current msg are pruned A crash was reported by Zhen Chen: listdel corruption, ffffa035ddf01c18-next is NULL WARNING: CPU: 1 PID: 250682 at lib/listdebug.c:49 listdelentryvalid+0x59/0xe0...

CVE-2022-49838 sctp: clear out_curr if all frag chunks of current msg are pruned

In the Linux kernel, the following vulnerability has been resolved: sctp: clear outcurr if all frag chunks of current msg are pruned A crash was reported by Zhen Chen: listdel corruption, ffffa035ddf01c18-next is NULL WARNING: CPU: 1 PID: 250682 at lib/listdebug.c:49 listdelentryvalid+0x59/0xe0...

PT-2025-18475

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to the fixed version Description A vulnerability in the Linux kernel has been resolved. The issue is related to the wifi mac80211 component, where the skb control block key could be removed before the ieee80211 tx...

PT-2025-54989

Уязвимость функции ieee80211 tx dequeue компонента mac80211 ядра операционной системы Linux связана с недостаточным контролем ресурса в период его существования. Эксплуатация уязвимости может позволить нарушителю, действующему удаленно, вызвать отказ в обслуживании...

PT-2025-20352

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A potential use-after-free UAF issue in the hfsc dequeue function has been resolved. The fix aims to safeguard this function, similar to a previous patch. However, a reliable reproducer...

PT-2025-27950

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue concerns the hfsc qlen notify function in the Linux kernel, which is not idempotent and can cause problems for its callers, such as fq codel dequeue. To address this, changes...

PT-2025-27895

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 6.6.65 Description: A vulnerability in the Linux kernel has been resolved, related to the thunderbolt module. The issue occurs when the tb cfg request dequeue function is called twice for the same request,...