CVE-2022-49411 bfq: Make sure bfqg for which we are queueing requests is online

In the Linux kernel, the following vulnerability has been resolved: bfq: Make sure bfqg for which we are queueing requests is online Bios queued into BFQ IO scheduler can be associated with a cgroup that was already offlined. This may then cause insertion of this bfqgroup into a service tree. But...

CVE-2022-49411 bfq: Make sure bfqg for which we are queueing requests is online

In the Linux kernel, the following vulnerability has been resolved: bfq: Make sure bfqg for which we are queueing requests is online Bios queued into BFQ IO scheduler can be associated with a cgroup that was already offlined. This may then cause insertion of this bfqgroup into a service tree. But...

CVE-2022-49411

In the Linux kernel, the following vulnerability has been resolved: bfq: Make sure bfqg for which we are queueing requests is online Bios queued into BFQ IO scheduler can be associated with a cgroup that was already offlined. This may then cause insertion of this bfqgroup into a service tree. But...

CVE-2022-49411

The CVE-2022-49411 entry describes a Linux kernel BFQ IO scheduler issue where bios queued to a bfq_group tied to an offline cgroup could be inserted into the service tree and be freed when the last bio completes, causing a use-after-free. The documented fix is to always operate on an online bfq_...

CVE-2022-49183 net/sched: act_ct: fix ref leak when switching zones

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix ref leak when switching zones When switching zones or network namespaces without doing a ct clear in between, it is now leaking a reference to the old ct entry. That's because tcfctskbnfctcached returns fals...

CVE-2022-49090

The CVE-2022-49090 entry concerns Linux kernel arch/arm64: Fix topology initialization for core scheduling. The issue arises when store_cpu_topology() does not call update_siblings_masks() before notify_cpu_starting(), causing core scheduling data structures to reflect an incorrect topology. If s...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from bfq not ensuring that bfqg is online when queuing requests...

PT-2025-28009

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A race condition in the Linux kernel's scheduler can cause crashes, including kernel panics with various crash signatures such as assert failures, page faults, null pointer dereference...

CVE-2025-22207

Improperly built order clauses lead to a SQL injection vulnerability in the backend task list of comscheduler...

DEBIAN-CVE-2025-21702

In the Linux kernel, the following vulnerability has been resolved: pfifotailenqueue: Drop new packet when sch-limit == 0 Expected behaviour: In case we reach scheduler's limit, pfifotailenqueue will drop a packet in scheduler's queue and decrease scheduler's qlen by one. Then, pfifotailenqueue...

CVE-2025-21702

In the Linux kernel, the following vulnerability has been resolved: pfifotailenqueue: Drop new packet when sch-limit == 0 Expected behaviour: In case we reach scheduler's limit, pfifotailenqueue will drop a packet in scheduler's queue and decrease scheduler's qlen by one. Then, pfifotailenqueue...

CVE-2025-21702 pfifo_tail_enqueue: Drop new packet when sch->limit == 0

In the Linux kernel, the following vulnerability has been resolved: pfifotailenqueue: Drop new packet when sch-limit == 0 Expected behaviour: In case we reach scheduler's limit, pfifotailenqueue will drop a packet in scheduler's queue and decrease scheduler's qlen by one. Then, pfifotailenqueue...

CVE-2025-21702

The CVE CVE-2025-21702 concerns a bug in Linux kernel pfifo_tail_enqueue where, when sch->limit == 0, a path can cause qlen to be increased to one even if a preceding drop would have kept it at zero. This leads to a mismatch where a parent qlen no longer equals the sum of its children’s qlen, ...

PT-2025-25834

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability in the Linux kernel has been resolved. The issue is related to the bpf verifier, where the copy verifier state function should copy the loop entry field. If not copied,...

CVE-2023-50380

XML External Entity injection in apache ambari versions = 2.7.7, Users are recommended to upgrade to version 2.7.8, which fixes this issue. More Details: Oozie Workflow Scheduler had a vulnerability that allowed for root-level file reading and privilege escalation from low-privilege users. The...

SUSE CVE-2022-48921

In the Linux kernel, the following vulnerability has been resolved: sched/fair: Fix fault in reweightentity Syzbot found a GPF in reweightentity. This has been bisected to commit 4ef0c5c6b5ba "kernel/sched: Fix schedfork access an invalid schedtaskgroup" There is a race between schedpostfork and...

UBUNTU-CVE-2025-21700

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/sched: actapi: fixed a possible infinite loop in tcfidrcheckalloc The syzbot detected tasks that were stuck while waiting for rtnllock 1 A reproducer is available in the syzbot bug report. When a request is made to add...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Block, bfq: Fixed a possible UAF issue for bfqq-bic when using the merge chain. 1 Initial state: Three tasks: - Process 1 Process 2 Process 3 - BIC1 BIC2 BIC3 | Λ | Λ | Λ | | | | | V | V | V bfqq1 bfqq2 bfqq3 Process reference...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: - In the net:sched section, there is a fix for the order of qlen adjustment. - Changes to sch-q.qlen related to qdisctreereducebacklog need to occur before a call to that function. Otherwise, it may fail to notify the parent...