CVE-2026-98444

The Linux kernel contains a vulnerability in the xfs filesystem where the xfs_qm_flush_one function fails to release the dquot flush lock (dqflock) when it is unable to acquire the associated buffer. Because the lock remains held when no buffer exists for other processes to release it, the system...

EUVD-2026-103684

In the Linux kernel, the following vulnerability has been resolved: xfs: drop dquot flush lock when we can't find a buffer to flush LOLLM noticed that xfsqmflushone fails to drop the dquot flush lock if it can't grab the buffer associated with the dquot. Since there's no buffer, nobody else is...

CVE-2026-98443

The Linux kernel 's XFS filesystem component contained several bugs in the xlog_recover_iunlink_bucket function. Specifically, failing to null out prev_ip after release could lead to Use-After-Free (UAF) issues if an inodegc flush failed. Additionally, the code could leak @ip on flush failures an...

CVE-2026-98443 xfs: fix cursor and pointer handling when recovering iunlink buckets

In the Linux kernel, the following vulnerability has been resolved: xfs: fix cursor and pointer handling when recovering iunlink buckets LOLLM pointed out a bug in xlogrecoveriunlinkbucket: 1. We don't null out previp after releasing it, which can lead to UAF problems if the inodegc flush call in...

EUVD-2026-103683

In the Linux kernel, the following vulnerability has been resolved: xfs: fix cursor and pointer handling when recovering iunlink buckets LOLLM pointed out a bug in xlogrecoveriunlinkbucket: 1. We don't null out previp after releasing it, which can lead to UAF problems if the inodegc flush call in...

CVE-2026-98442

The Linux kernel contains a Use-After-Free (UAF) vulnerability within the net/sched: act_ct component. The issue occurs because a raw pointer to the extensions area is inserted into the expectations list during the nf_ct_helper() call sequence. If a connection is not yet confirmed, subsequent *_e...

CVE-2026-98442 net/sched: act_ct: fix helper UAF due to extensions realloc

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix helper UAF due to extensions realloc While calling the helpers, a raw pointer to the extensions area is wired into expectations list: - nfcthelper - helper-help - nfctexpectrelatedreport - nfctexpectinsert -...

EUVD-2026-103682

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: fix helper UAF due to extensions realloc While calling the helpers, a raw pointer to the extensions area is wired into expectations list: - nfcthelper - helper-help - nfctexpectrelatedreport - nfctexpectinsert -...

CVE-2026-98441

The Linux kernel contains a vulnerability in the net/sched: act_ct component where cloning an skb with an unconfirmed conntrack (ct) entry can lead to a Use-After-Free (UAF) . This occurs because the first clone may wire up an extension pointer into the expectation list, but if it loses confirmat...

CVE-2026-98441 net/sched: act_ct: avoid modifying shared unconfirmed ct entry

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: avoid modifying shared unconfirmed ct entry In a case where skb with an unconfirmed ct entry gets cloned, we may end up processing both again but with different sets of extensions. The series of events: 1. The...

EUVD-2026-103681

In the Linux kernel, the following vulnerability has been resolved: net/sched: actct: avoid modifying shared unconfirmed ct entry In a case where skb with an unconfirmed ct entry gets cloned, we may end up processing both again but with different sets of extensions. The series of events: 1. The...

EUVD-2026-103680

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Delay freeing of shadow S2 structures until VM destruction We free the shadow S2 structures from kvmarchflushshadowall, which is a Bad Ideatm. Freeing the page tables is fair game this is what this callback is for...

linux-4.19.72_CVE-2022-42896

Linux kernel There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use make htmldocs or make pdfdocs. The formatted documentatio...

OverlayFS-PrivEsc-CVE-2022-0944

CVE-2022-0944: Privilege Escalation Vulnerability in OverlayFS 🛡️ Security advisory and mitigation guide for the Linux kernel privilege escalation vulnerability in OverlayFS. 📜 Overview CVE-2022-0944 is a security vulnerability in the Linux kernel's OverlayFS subsystem that allows local attackers...

Linux-Kernel-4.4.0-Ubuntu---DCCP-Double-Free-Privilege-Escalation-CVE-2017-6074

Linux-Kernel-4.4.0-Ubuntu---DCCP-Double-Free-Privilege-Escalation-CVE-2017-6074...

DirtyCred

DirtyCred: Escalating Privilege in Linux Kernel DirtyCred is a kernel exploitation concept that swaps unprivileged kernel credentials with privileged ones to escalate privilege. Instead of overwriting any critical data fields on kernel heap, DirtyCred abuses the heap memory reuse mechanism to get...

CVE-2023-32233

Building And Configuring The instructions below were tested under Ubuntu 23.04 Lunar Lobster. Installing Build Dependencies Run the following command to install the build dependencies: sudo apt install gcc libmnl-dev libnftnl-dev Building Binary Run the following command to build the PoC binary:...

CVE-2016-0728

CVE-2016-0728 Seccamp 2017 Assignment The following program exploits a vulnerability present in the Linux kernel versions 3.8 to 4.4. Explain the malfunction that occurs when this program is executed. Also, write an exploit that achieves root privilege escalation by further exploiting this...

CVE-2023-32233

CVE-2023-32233 5.x Kernel Adaptation Existing Exploits 1. https://github.com/Liuk3r/CVE-2023-32233/tree/main 2. https://github.com/google/security-research/tree/master/pocs/linux/kernelctf/CVE-2023-32233mitigation Reason Since the lower version listdelrcu. Method This exploit has been tested on...

linux-kernel-exploits

linux-kernel-exploits Introduction linux-kernel-exploits Vulnerability List CVE Description Kernels CVE–2018–18955 mapwrite in kernel/usernamespace.c allows privilege escalation Linux kernel 4.15.x through 4.19.x before 4.19.2 CVE–2018–1000001 glibc glibc 2.6.22 released in 2007 CVE-2016-2384 a...