kernel: net/sched: act_api: use RCU with deferred freeing for action lifecycle

A flaw was found in the Linux kernel's networking scheduler. A race condition, which is a problem that occurs when multiple operations try to access the same resource at the same time, exists when network filter operations are run concurrently. This can lead to a Use-After-Free UAF vulnerability,...

kernel: net/sched: act_api: use RCU with deferred freeing for action lifecycle

A flaw was found in the Linux kernel's networking scheduler. A race condition, which is a problem that occurs when multiple operations try to access the same resource at the same time, exists when network filter operations are run concurrently. This can lead to a Use-After-Free UAF vulnerability,...

kernel: net/sched: act_api: use RCU with deferred freeing for action lifecycle

A flaw was found in the Linux kernel's networking scheduler. A race condition, which is a problem that occurs when multiple operations try to access the same resource at the same time, exists when network filter operations are run concurrently. This can lead to a Use-After-Free UAF vulnerability,...

kernel: net/sched: act_api: use RCU with deferred freeing for action lifecycle

A flaw was found in the Linux kernel's networking scheduler. A race condition, which is a problem that occurs when multiple operations try to access the same resource at the same time, exists when network filter operations are run concurrently. This can lead to a Use-After-Free UAF vulnerability,...

kernel: net/sched: act_api: use RCU with deferred freeing for action lifecycle

A flaw was found in the Linux kernel's networking scheduler. A race condition, which is a problem that occurs when multiple operations try to access the same resource at the same time, exists when network filter operations are run concurrently. This can lead to a Use-After-Free UAF vulnerability,...

Important: Red Hat Security Advisory: kpatch-patch-5_14_0-284_117_1, kpatch-patch-5_14_0-284_134_1, kpatch-patch-5_14_0-284_148_1, kpatch-patch-5_14_0-284_158_1, and kpatch-patch-5_14_0-284_172_1 security update

An update for multiple packages is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity...

CVE-2026-68138

CVE-2026-68138 — Linux 内核 net/sched qdisc 速率表 UAF 跟踪站点 CVE-2026-68138 补丁状态跟踪器的来源：一个单页站点，记录哪些发行版已为 Linux 内核中 net/sched qdisc 速率表的释放后使用 / 双重释放（use-after-free / double-free）漏洞发布了修复。 事实所在 关于该漏洞的所有信息——CVE ID、受影响版本和已修复版本、上游修复提交、发现与披露致谢，以及当前各发行版的补丁状态——均属于跟踪器页面，而非本 README： 渲染页面：...

cve-2026-46331-audit

cve-2026-46331-audit Script de auditoría de solo lectura para CVE-2026-46331 también conocido como pedit COW — un error parcial de copia en escritura en la acción actpedit del subsistema net/sched del kernel de Linux que permite a un usuario local no privilegiado corromper la memoria caché de...

CVE-2026-46331

PACKETEDITMEME - CVE-2026-46331 net/sched actpedit 部分写时复制 partial-COW 页缓存破坏 罪魁祸首提交 899ee91156e5，存在于 v5.18 .. 在 v7.1-rc7 中修复。packeteditmeme.c 将其转化为无特权的本地提权：一个拥有 userns CAPNETADMIN 的子进程覆盖了 setuid-root 二进制文件的已缓存 ELF 元数据，替换为 setgid0+setuid0+execve"/bin/sh" shellcode。 root@kitploit: make...

CVE-2026-46331

🚨 CVE-2026-46331 - LinuxカーネルCOWバグ Linuxカーネル net/sched 部分的なコピーオンライト（COW）ページキャッシュ破損 -orange?style=for-the-badge Linuxカーネルの脆弱性で、トラフィック制御（tc）パケット編集サブシステムにおける不正確なコピーオンライト（COW）処理に起因します。 📖 概要 CVE-2026-46331 は、net/sched パケット編集（actpedit）サブシステムに影響を与えるLinuxカーネルの脆弱性です。 この脆弱性は、カーネルが実際のパケット編集オフセットが判明する前に...

SUSE SLES15 Security Update : kernel (Live Patch 29 for SUSE Linux Enterprise 15 SP6) (SUSE-SU-2026:3819-1)

The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3819-1 advisory. This update for the SUSE Linux Enterprise Kernel 6.4.0-150600.23.125 fixes various security issues: The following security issues were fixed: -...

packet_edit_meme

PACKETEDITMEME - 又名 CVE-2026-46331 net/sched actpedit 部分COW页缓存损坏 罪魁祸首 899ee91156e5， 存在 v5.18 .. 已修复 v7.1-rc7。packeteditmeme.c 将其转化为无特权本地 root：一个 userns CAPNETADMIN 子进程覆盖了 setuid-root /bin/su 的缓存 ELF 入口，使用 setgid0+setuid0+execve"/bin/sh" shellcode。 root@kitploit: make ./packeteditmeme...

CVE-2026-80630

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...

EUVD-2026-66569

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: skip hash tables in u32bindclass u32walk enumerates both struct tcuhnode and struct tcuknode through the walker callback. u32bindclass unconditionally casts the passed fh to tcuknode and accesses &n-res, so whe...

SUSE CVE-2026-74739

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: skip hash tables in u32bindclass u32walk enumerates both struct tcuhnode and struct tcuknode through the walker callback. u32bindclass unconditionally casts the passed fh to tcuknode and accesses &n-res, so whe...

AZL-97767 CVE-2026-74736 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsbpf: reject dev-bound programs bound to a different device clsbpfprogfromefd obtained a SCHEDCLS program via bpfproggettypedev but never verified that a device-bound offloaded program's bound netdev matches the TC...

AZL-97740 CVE-2026-74739 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: skip hash tables in u32bindclass u32walk enumerates both struct tcuhnode and struct tcuknode through the walker callback. u32bindclass unconditionally casts the passed fh to tcuknode and accesses &n-res, so whe...

CVE-2026-74740

In the Linux kernel, the following vulnerability has been resolved: net/sched: actapi: fix TOCTOU NULL deref on a-gotochain tcfactionexec handles TCACTGOTOCHAIN by first checking rcuaccesspointera-gotochain and then calling tcfactiongotochainexec, which does a second, independent...

UBUNTU-CVE-2026-74740

In the Linux kernel, the following vulnerability has been resolved: net/sched: actapi: fix TOCTOU NULL deref on a-gotochain tcfactionexec handles TCACTGOTOCHAIN by first checking rcuaccesspointera-gotochain and then calling tcfactiongotochainexec, which does a second, independent...

CVE-2026-74740

CVE-2026-74740 is a TOCTOU (time-of-check-time-of-use) NULL pointer dereference in the Linux kernel's net/sched: act_api subsystem. When handling TC_ACT_GOTO_CHAIN, tcf_action_exec() performs an initial rcu_access_pointer(a->goto_chain) check, then calls tcf_action_goto_chain_exec() which perf...