Astra Linux – Vulnerability in WebKit2GTK

A memory management issue related to “use after free” operations has been addressed through improved memory management practices. This issue is fixed in macOS Monterey 12.3, iOS 15.4, iPadOS 15.4, tvOS 15.4, and Safari 15.4. Processing maliciously crafted web content may lead to arbitrary code...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: drm/amdkfd: Fixed the issue where mode1 reset caused crashes. If the HW scheduler hangs and mode1 reset is used to recover the GPU, the KFD signals the user space to abort the processes. After the process aborts, user queues...

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

In the Linux kernel, the following vulnerability has been resolved: crypto: caam – Fixed the pointer passed to caamqishutdown. The type of the last parameter given to devmaddactionorreset is "struct caamdrvprivate ", but in caamqishutdown, it is casted to "struct device ". Pass the correct...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mm/migrate: fixed the issue where shmem xarray updates occur during migration. A shmem folio can be either in the page cache or in the swap cache, but not both at the same time. Specifically, once it is in the swap cache,...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Fixed an issue where free was called after the memory was allocated. Our code analyzer reported a Use-after-Free UAF vulnerability. In the function siwallocmr, it calls siwmraddmemmr,.... In the implementation of...

Astra Linux – Vulnerability in WebKit2GTK

A “use-after-free” issue has been addressed through improved memory management. This issue is fixed in watchOS 10, iOS 17, iPadOS 17, tvOS 17, macOS Sonoma 14, and Safari 17. Processing web content may lead to arbitrary code execution...

Astra Linux – Vulnerability in WebKit2GTK

A “use-after-free” issue has been addressed through improved memory management. This issue is fixed in iOS 17, iPadOS 17, watchOS 10, and macOS Sonoma 14. Processing web content may lead to arbitrary code execution...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Eliminate the window where the window in which TLB flushes may be inadvertently skipped. TL;DR: There is a window in the MM switching code where the new CR3 is set, and the CPU should receive TLB flushes for the new MM...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mm/pagealloc: prevents corruption of pcp with SMP=n. The kernel test robot has reported the following issue: BUG: spinlock trylock failure on UP on CPU0, kcompactd0/28 Lock: 0xffff888807e35ef0, .magic: dead4ead, .owner:...

PT-2026-91645

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 27 and iPadOS 27. An app may be able to cause unexpected system termination...

Linux Distros Unpatched Vulnerability : CVE-2026-89758

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mm/mempolicy: skip non-present PMDs when queueing folios Patch series mm: handle device-private PMDs in walk callbacks, v3. Since commit 368076f52ebe...

Linux Distros Unpatched Vulnerability : CVE-2026-89502

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ring-buffer: Free cpubuffer::freepage with subbuforder When sub-buffers use an order greater than 0, cpubuffer-freepage is allocated with subbuforder. Use the...

CVE-2026-89758

A flaw was found in the Linux kernel's memory management subsystem. When an HMM-based Graphics Processing Unit GPU driver migrates a Transparent Huge Page THP to device memory, it can leave a device-private Page Middle Directory PMD entry. If a user-space application then attempts to manage this...

CVE-2026-89757

A flaw was found in the Linux kernel's memory management unit MMU, specifically within the multi-generational Least Recently Used mglru mechanism. A bug in how the kernel handles unevictable memory pages can lead to these pages remaining locked in memory even after they should be released. This c...

CVE-2026-89757

In the Linux kernel, the following vulnerability has been resolved: mm/mglru: fix and remove redundant unevictable folio handling sortfolio has a shortcut for moving folios that are no longer evictable but are still sitting on a generation list. However, this shortcut is buggy. It does not follow...

CVE-2026-89758

In the Linux kernel, the following vulnerability has been resolved: mm/mempolicy: skip non-present PMDs when queueing folios Patch series "mm: handle device-private PMDs in walk callbacks", v3. Since commit 368076f52ebe "mm/hugememory: add device-private THP support to PMD operations" a PMD may...

UBUNTU-CVE-2026-89758

In the Linux kernel, the following vulnerability has been resolved: mm/mempolicy: skip non-present PMDs when queueing folios Patch series "mm: handle device-private PMDs in walk callbacks", v3. Since commit 368076f52ebe "mm/hugememory: add device-private THP support to PMD operations" a PMD may...

CVE-2026-89502

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Free cpubuffer::freepage with subbuforder When sub-buffers use an order greater than 0, cpubuffer-freepage is allocated with subbuforder. Use the correct order for cpubuffer-freepage...

CVE-2026-89757

CVE-2026-89757 affects the Linux kernel 's multi-gen LRU (mglru) subsystem. The root cause is a buggy shortcut in sort_folio() for handling unevictable folios: it fails to initialize mlock_count , causing it to alias LIST_POISON2 (value 290). As a result, __munlock_folio() cannot clear the PG_mlo...

linux-insides

Linux insides This repository contains a book-in-progress about the Linux kernel and its insides. The goal of this project is simple – to share knowledge about the Linux kernel internals and related low-level topics. If you're curious about what's under the hood, see the Table of Contents. Chapte...