kernel: net/sched: sch_qfq component can be exploited if in qfq_change_agg function happens qfq_enqueue overhead

An out-of-bounds memory write flaw was found in qfqchangeagg in net/sched/schqfq.c in the Traffic Control QoS subsystem in the Linux kernel. This flaw allows a local user to crash or potentially escalate their privileges on the system...

kernel: net: sched: sfb: fix null pointer access issue when sfb_init() fails

A null pointer dereference exists in the linux kernel, such that when sfbinit fails qdisc is NULL, and it will cause gpf issue, leading to damage to the availability of the system...

kernel: net: sched: cake: fix null pointer access issue when cake_init() fails

In the Linux kernel, the following vulnerability has been resolved: net: sched: cake: fix null pointer access issue when cakeinit fails When the default qdisc is cake, if the qdisc of devqueue fails to be inited during mqprioinit, cakereset is invoked to clear resources. In this case, the tins is...

Kernel: denial of service in atm_tc_enqueue in net/sched/sch_atm.c due to type confusion

A denial of service flaw was found in atmtcenqueue in net/sched/schatm.c in the Linux kernel. This issue may allow a local attacker to cause a denial of service due to type confusion. Non-negative numbers could indicate a TCACTSHOT condition rather than valid classification results...

kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route

This record is a duplicate of CVE-2023-4206, CVE-2023-4207, and CVE-2023-4208. Do not use this CVE record: CVE-2023-4128...

kernel: net/sched: cls_u32 component reference counter leak if tcf_change_indev() fails

A double-free flaw was found in u32setparms in net/sched/clsu32.c in the Network Scheduler component in the Linux kernel. This flaw allows a local attacker to use a failure event to mishandle the reference counter, leading to a local privilege escalation threat...

kernel: net/sched: cls_u32 component reference counter leak if tcf_change_indev() fails

A double-free flaw was found in u32setparms in net/sched/clsu32.c in the Network Scheduler component in the Linux kernel. This flaw allows a local attacker to use a failure event to mishandle the reference counter, leading to a local privilege escalation threat...

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...

kernel: net/sched: cls_u32 component reference counter leak if tcf_change_indev() fails

A double-free flaw was found in u32setparms in net/sched/clsu32.c in the Network Scheduler component in the Linux kernel. This flaw allows a local attacker to use a failure event to mishandle the reference counter, leading to a local privilege escalation threat...

kernel: block, bfq: fix possible uaf for 'bfqq->bic'

In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix possible uaf for 'bfqq-bic' Our test report a uaf for 'bfqq-bic' in 5.10: ================================================================== BUG: KASAN: use-after-free in bfqselectqueue+0x378/0xa30 CPU: 6 PID:...

kernel: net: sched: sfb: fix null pointer access issue when sfb_init() fails

A null pointer dereference exists in the linux kernel, such that when sfbinit fails qdisc is NULL, and it will cause gpf issue, leading to damage to the availability of the system...

kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route

There are 3 CVEs for the use-after-free flaw found in net/sched/clsfw.c in classifiers clsfw, clsu32, and clsroute in the Linux Kernel: CVE-2023-4206, CVE-2023-4207, CVE-2023-4208. A local user could use any of these flaws to crash the system or potentially escalate their privileges on the system...

kernel: Type confusion in pick_next_rt_entity()

A memory corruption flaw was found in the Linux kernel's scheduler subsystem. This could allow a local user to crash the system or potentially escalate their privileges on the system...

kernel: Linux kernel: Denial of Service due to use-after-free in BFQ scheduler

A flaw was found in the Linux kernel. A use-after-free UAF vulnerability exists in the block I/O input/output queueing layer, specifically within the Budget Fair Queueing BFQ scheduler. This occurs because the bfqexiticqbfqq function can free a bfqq object before bicsetbfqq accesses it, leading t...

kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route

There are 3 CVEs for the use-after-free flaw found in net/sched/clsfw.c in classifiers clsfw, clsu32, and clsroute in the Linux Kernel: CVE-2023-4206, CVE-2023-4207, CVE-2023-4208. A local user could use any of these flaws to crash the system or potentially escalate their privileges on the system...

kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route

There are 3 CVEs for the use-after-free flaw found in net/sched/clsfw.c in classifiers clsfw, clsu32, and clsroute in the Linux Kernel: CVE-2023-4206, CVE-2023-4207, CVE-2023-4208. A local user could use any of these flaws to crash the system or potentially escalate their privileges on the system...

cups: use-after-free in cupsdAcceptClient() in scheduler/client.c

A vulnerability was found in CUPS. This issue occurs due to logging data of free memory to the logging service AFTER the connection has been closed, when it should have logged the data immediately before the connection closed, resulting in a use-after-free in cupsdAcceptClient in scheduler/client...

PT-2025-38166

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The Linux kernel contains a flaw in the networking scheduler sfb where a null pointer dereference can occur when sfb init fails during the initialization of the default queue disciplin...

[Important] [Security] Virtuozzo ReadyKernel Patch 163.1 for Virtuozzo Hybrid Server 7.5

The cumulative Virtuozzo ReadyKernel patch was updated with security fixes. The patch applies to all supported kernels of Virtuozzo Hybrid Server 7.5. Vulnerability id: CVE-2023-4622 3.10.0-1160.53.1.vz7.185.3 to 3.10.0-1160.90.1.vz7.200.7 Null pointer dereference in Unix local sockets during...

USN-6454-4 linux-starfive vulnerabilities

Kyle Zeng discovered that the netfilter subsystem in the Linux kernel contained a race condition in IP set operations in certain situations. A local attacker could use this to cause a denial of service system crash. CVE-2023-42756 Alex Birnberg discovered that the netfilter subsystem in the Linux...