CVE-2023-20938-poc

CVE-2023-20938 — Android binder UAF privilege escalation A local privilege escalation proof-of-concept for CVE-2023-20938 , a use-after-free in the Android binder driver. From an unprivileged shell it gains uid 0 and drops SELinux to permissive , then spawns a root shell. Target for this build:...

CVE-2025-21756

CVE-2025-21756 — Exploitation Lab For educational and authorized security research purposes only. Description CVE-2025-21756 is a use-after-free UAF vulnerability in the Linux kernel's vsock Virtual Socket subsystem, disclosed on February 26, 2025. It allows a local attacker to escalate privilege...

PinTheft-go

pintheft-go pintheft の Go 移植版 - RDS zcopy double-free LPE。Dirty Frag 脆弱性クラスに属します。 !IMPORTANT Arch Linux は、この脆弱性に対して最も露出しているディストリビューションの一つです。RDS モジュールをデフォルトでロードできる数少ないディストリビューションの一つだからです。 動作原理（tl;dr） バグは rdsmessagezcopyfromuser にあります。この関数は FOLLGET を使用してユーザーページを1つずつ GUP...

cve-2024-1086-writeup

CVE-2024-1086 根本原因と悪用 対象カーネル: Linux 6.8 netfilter nftables 新たな視点: nftverdictinit におけるロジック混乱により参照カウントの二重解放が発生し、ヒープスプレーを介した任意メモリ書き込みに悪用可能。 目次 1. 背景 — netfilter / nftables の概要 2. 根本原因分析 — nftverdictinit のロジック混乱 3. 脆弱なカーネルコード — 注釈付きソース抜粋 4. 概念実証 — トリガーおよびエクスプロイトコード 5. 悪用戦略 — ヒープスプレーによる任意書き込み 6. 参考文献...

Rocky Linux 8 [CIQ] Security Update: python3-psutil / python3-psutil-debuginfo (crlsa-2021_4324)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20214324 advisory. python-psutil: double free because of refcount mishandling CVE-2019-18874 Tenable has extracted the preceding description block directly from the CIQ security...

AlmaLinux 9.6 [TuxCare] Security Update: kernel / kernel-abi-stablelists / kernel-core / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1787305050)

"The AlmaLinux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1787305050 advisory. - In the Linux kernel, the following vulnerability has been resolved: l2tp: prevent possible tunnel refcount underflow When a sessi...

Rocky Linux 9.6 [TuxCare] Security Update: kernel / kernel-abi-stablelists / kernel-core / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1787305050)

"The Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1787305050 advisory. - In the Linux kernel, the following vulnerability has been resolved: l2tp: prevent possible tunnel refcount underflow When a...

cve-2016-0728-testbed

CVE-2016-0728 testbed This repository contains a test program for CVE-2016-0728, a refcount leak and overflow bug in Linux, that leads to a use-after-free. The bug was found and explained by Perception Point. I am not affiliated to them. Usage Welcome to the CVE-2016-0728 testbed sizeofstruct...

CVE-2026-98163

In the Linux kernel, the following vulnerability has been resolved: cgroup: Avoid iteration of dying tasks with zero refcount The commit 260fbcb92bbea "cgroup: Move dyingtasks cleanup from cgrouptaskrelease to cgrouptaskfree" extended the lifetime of tasks on the dyingtasks list. The iterators ha...

CVE-2026-98163: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: cgroup: Avoid iteration of dying tasks with zero refcount The commit 260fbcb92bbea "cgroup: Move dyingtasks cleanup from cgrouptaskrelease to cgrouptaskfree" extended the lifetime of tasks on the dyingtasks list. The iterators ha...

SUSE CVE-2026-93223

In the Linux kernel, the following vulnerability has been resolved: staging: media: tegra-video: fix ofnodeput on VIP parse errors tegravipchannelofparse initializes np from dev-ofnode without taking a reference, but its error paths drop one through the errnodeput label. This underflows the...

SUSE CVE-2026-98128

In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Fix target device refcount leak in mpi3mrsasportadd mpi3mrgettgtdevbyaddr increments the target device kref when it returns a device. If a subsequent error triggers a goto outfail after the tgtdev reference is...

AZL-104706 CVE-2026-98128 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Fix target device refcount leak in mpi3mrsasportadd mpi3mrgettgtdevbyaddr increments the target device kref when it returns a device. If a subsequent error triggers a goto outfail after the tgtdev reference is...

DEBIAN-CVE-2026-98128

In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Fix target device refcount leak in mpi3mrsasportadd mpi3mrgettgtdevbyaddr increments the target device kref when it returns a device. If a subsequent error triggers a goto outfail after the tgtdev reference is...

CVE-2026-98128

In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Fix target device refcount leak in mpi3mrsasportadd mpi3mrgettgtdevbyaddr increments the target device kref when it returns a device. If a subsequent error triggers a goto outfail after the tgtdev reference is...

DEBIAN-CVE-2026-97946

In the Linux kernel, the following vulnerability has been resolved: x86/amdnode: Fix PCI device reference counting in amdsmninit The local "root" pointer is a temporary variable used during the device search. Therefore, refcount related to the search iterators should be cleaned up after the searc...

AZL-104543 CVE-2026-97557 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: smb: client: avoid leaking refcount in cifsqueueoplockbreak cifsqueueoplockbreak unconditionally takes a reference on the target file before queueing cifsoplockbreak. Only that work item decreases the reference counter again. If...

AZL-104327 CVE-2026-97556 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: smb: client: avoid leaking refcount when cifssbtlink fails cifsoplockbreak takes over the reference that cifsqueueoplockbreak acquired when it queued the work, and drops it with cifsFileInfoput once the break has been processed...

CVE-2026-97556

In the Linux kernel, the following vulnerability has been resolved: smb: client: avoid leaking refcount when cifssbtlink fails cifsoplockbreak takes over the reference that cifsqueueoplockbreak acquired when it queued the work, and drops it with cifsFileInfoput once the break has been processed...

CVE-2026-97557

In the Linux kernel, the following vulnerability has been resolved: smb: client: avoid leaking refcount in cifsqueueoplockbreak cifsqueueoplockbreak unconditionally takes a reference on the target file before queueing cifsoplockbreak. Only that work item decreases the reference counter again. If...