CVE-2026-80724 ptp: vmclock: prevent read-only mappings from becoming writable

In the Linux kernel, the following vulnerability has been resolved: ptp: vmclock: prevent read-only mappings from becoming writable vmclockmiscdevmmap rejects writable mappings of the shared vmclock ABI page with -EROFS, but leaves VMMAYWRITE set. Userspace can map the page read-only and then...

CVE-2026-80724

CVE-2026-80724 affects the Linux kernel's ptp/vmclock driver. The root cause is that vmclock_miscdev_mmap() rejects writable mappings of the shared vmclock ABI page with -EROFS but leaves VM_MAYWRITE set, allowing a guest to map the page read-only and then upgrade it to writable via mprotect(). T...

EUVD-2026-67460

In the Linux kernel, the following vulnerability has been resolved: ptp: vmclock: prevent read-only mappings from becoming writable vmclockmiscdevmmap rejects writable mappings of the shared vmclock ABI page with -EROFS, but leaves VMMAYWRITE set. Userspace can map the page read-only and then...

CVE-2026-80724 ptp: vmclock: prevent read-only mappings from becoming writable

In the Linux kernel, the following vulnerability has been resolved: ptp: vmclock: prevent read-only mappings from becoming writable vmclockmiscdevmmap rejects writable mappings of the shared vmclock ABI page with -EROFS, but leaves VMMAYWRITE set. Userspace can map the page read-only and then...

Mandiant-Azure-AD-Investigator

Mandiant Azure AD Investigator Fokus auf UNC2452 TTPs Überblick Dieses Repository enthält ein PowerShell-Modul zur Erkennung von Artefakten, die Indikatoren für UNC2452 und andere Bedrohungsakteure sein können. Einige Indikatoren sind "hochzuverlässige" Kompromittierungsindikatoren, während ander...

Linux Distros Unpatched Vulnerability : CVE-2026-80724

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ptp: vmclock: prevent read-only mappings from becoming writable vmclockmiscdevmmap rejects writable mappings of the shared vmclock ABI page with -EROFS, but...

PT-2026-83024

First CVE: CVE-2026-80724 CVSS 8.8 Fixed a High severity issue in Linux kernel ptp vmclock that allowed read-only mappings to become writable. https://t.co/8CqxhvhfsA @CVEnew @lostsec CVE CyberSecurity LinuxKernel InfoSec AbdifatahSuruur suruur bugbounty...

CVE-2026-81729

Dolibarr before 23.0.4 authorizes REST API document deletion against the wrong permission. Documents::delete in htdocs/api/class/apidocuments.class.php calls dolchecksecureaccessdocument with the mode argument 'read' when handling DELETE /api/index.php/documents, while the sibling builddoc path...

EUVD-2026-67025

The executeruby tool is documented as a read-only Ruby sandbox and is enforced by a pattern denylist together with replacements for the process-spawning methods on Kernel. The pseudo-terminal library's spawn entry points are neither in the denylist nor replaced, so a normal tool call could reach...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098782)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098782 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: fix transaction abort when snapshotting received subvolumes Currently a user can trigger ...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098805)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098805 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: do not ASSERT when the fs flips RO inside btrfsrepairiofailure BUG There is a bug report...

CVE-2022-2590-analysis

CVE-2022-2590, Dirty COW limitato a shmem versione del kernel Linux: Linux/x86 6.0.0-rc1 commit 37887783b3fef877bf34b8992c9199864da4afcb Introduzione: questa vulnerabilità consente all'attaccante di scrivere contenuto arbitrario in una pagina di memoria condivisa di sola lettura, facendo soddisfa...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: bpf: Fixed the overloading of the meaning of MEMUNINIT Lonial reported an issue with the BPF verifier, where the checkmemsizereg function contains the following code: c if !tnumisconstreg-varoff / For unprivileged variable...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: smb/client: fixed a memory leak in smb2openfile Reproducing steps: 1. Server: Directories are exported as read-only. 2. Client: mount -t cifs //$serverip/export /mnt. 3. Client: dd if=/dev/zero of=/mnt/file bs=512 count=1000...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: f2fs: fixed to not dirty the inode for a read-only filesystem. The syzbot reports the f2fs bug as follows: Kernel BUG at fs/f2fs/inode.c:933! RIP: 0010:f2fsevict inode+0x1576/0x1590 fs/f2fs/inode.c:933 Call Trace: evict+0x2a4/0x6...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Properly hiding the first-in-list PCIe extended capabilities There are cases where a PCIe extended capability should be hidden from the user. For example, an unknown capability i.e., a capability with an ID greater than...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: ocfs2: Fixed a slab-use-after-free issue caused by a dangling pointer dqipriv. When mounting ocfs2 and then remounting it as read-only, a slab-use-after-free occurs after the user uses the syscall to call ocfs2getnextid...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix the return value of f2fsconvertinlineinode If the device is read-only, make f2fsconvertInline inode return EROFS instead of zero. Otherwise, a panic may occur during the writing of the dirty pages of the inline inode, a...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: bridge: Fixed the issue of null pointer dereference in the vlan tunnel’s destination pointer. This patch addresses the issue where the tunneldst pointer was dereferenced without proper safeguards, due to lockless access in t...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the context of dm-verity-target.c, there is a potential way to modify read-only files due to a missing permission check. This could lead to a local escalation of privileges, as System execution privileges are required. User interaction is not necessary for exploiting this vulnerability. Produc...