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

In the Linux kernel, the following vulnerability has been resolved: memcg: Protection for concurrent access to memcgroupidr Commit 73f576c04b94 “mm: memcontrol: Fixing cgroup creation failures after many small operations” separated the memcgroupidr IDs from the CSS ID space to address cgroup...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

A flaw was discovered in the filelockinit function in the fs/locks.c file within the Linux kernel. This issue can lead to host memory exhaustion, as memcg does not limit the number of POSIX file locks that can be created...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: mm: kmem: fixed a NULL pointer dereference in objstockflushrequired KCSAN identified an issue in objstockFlushRequired: stock-cachedobjcg can be reset between the check and dereference...

CVE-2026-64184 mm/damon/sysfs-schemes: call missing mem_cgroup_iter_break()

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs-schemes: call missing memcgroupiterbreak damonsysfsmemcgpathtoid breaks memcgroupiter loop without calling memcgroupiterbreak. This leaks the cgroup reference. Fix the issue by calling memcgroupiterbreak before the...

mcp-memory-service: OAuth read-only clients can write and delete memories through MCP tools/call

Summary The HTTP MCP JSON-RPC endpoint at /mcp requires only OAuth read scope for all requests, then dispatches tools/call directly to handlers that include mutating tools. A read-only OAuth client can call storememory and deletememory through MCP even though the corresponding REST endpoints...

CVE-2026-53153

A flaw was found in the Linux kernel's memory cgroup memcg listlru component. A race condition occurs during the reparenting of listlru entries when an xarray entry is cleared before its associated lists are fully reparented. This allows concurrent operations to modify list pointers under differe...

CVE-2026-53162 memcg: use round-robin victim selection in refill_stock

In the Linux kernel, the following vulnerability has been resolved: memcg: use round-robin victim selection in refillstock Harry Yoo reported that getrandomu32below is not safe to call in the nmi context and memcg charge draining can happen in nmi context. More specifically getrandomu32below is...

EUVD-2026-39253

In the Linux kernel, the following vulnerability has been resolved: memcg: use round-robin victim selection in refillstock Harry Yoo reported that getrandomu32below is not safe to call in the nmi context and memcg charge draining can happen in nmi context. More specifically getrandomu32below is...

PT-2026-52258

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the memory control group memcg where the get random u32 below function is called during memcg charge draining, which can occur in the Non-Maskable Interrupt NMI contex...

CVE-2026-46121 mm/damon/sysfs-schemes: protect memcg_path kfree() with damon_sysfs_lock

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs-schemes: protect memcgpath kfree with damonsysfslock Patch series "mm/damon/sysfs-schemes: fix use-after-free for memcgpath". Reads of 'memcgpath' and 'path' files in DAMON sysfs interface could race with their...

CVE-2026-46067

In the Linux kernel, the following vulnerability has been resolved: mm/damon/core: validate damosquotagoal-nid for nodememcgused,freebp Users can set damosquotagoal-nid with arbitrary value for nodememcgused,freebp. But DAMON core is using those for NODE-DATA without a validation of the value. Th...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: memcontrol: ensure memcg acquired by id is properly set up In the eviction recency check, we attempt to retrieve the memcg to which the folio belonged when it was evicted, by the memcg id stored in the shadow entry. However, ther...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: mm/slub: A check for s-flags was added in the alloctaggingslabfree hook function. When CONFIGMEMCG, CONFIGKFENCE, and CONFIGKMEMLEAK are enabled, the following warning always occurs. This happens because the following call sta...

Linux Distros Unpatched Vulnerability : CVE-2026-43287

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - drm: Account property blob allocations to memcg DRMIOCTLMODECREATEPROPBLOB allows userspace to allocate arbitrary-sized property blobs backed by kernel memory...

From Storage to Steering: Memory Control Flow Attacks on LLM Agents

Modern agentic systems allow Large Language Model LLM agents to tackle complex tasks through extensive tool usage, forming structured control flows of tool selection and execution. Existing security analyses often treat these control flows as ephemeral, one-off sessions, overlooking the persisten...

Secure In-Memory Execution with W^X Enforcement Using mprotect

This C program demonstrates how to dynamically control memory allocation with the W^X protection principle...

The vulnerability of the memory control block for IOMMU operations in AMD’s microprogramming software for processors allows attackers to circumvent security restrictions and compromise the integrity of the protected information.

The vulnerability of the memory management block for IOMMU operations in AMD microprogramming systems is related to incorrect input of configuration data. Exploiting this vulnerability can allow attackers to circumvent security restrictions and compromise the integrity of protected information...

CVE-2026-23219

In the Linux kernel, the following vulnerability has been resolved: mm/slab: Add alloctaggingslabfreehook for memcgallocabortsingle When CONFIGMEMALLOCPROFILINGDEBUG is enabled, the following warning may be noticed: 3959.023862 ------------ cut here ------------ 3959.023891 alloctag was not clear...

CVE-2026-23219 mm/slab: Add alloc_tagging_slab_free_hook for memcg_alloc_abort_single

In the Linux kernel, the following vulnerability has been resolved: mm/slab: Add alloctaggingslabfreehook for memcgallocabortsingle When CONFIGMEMALLOCPROFILINGDEBUG is enabled, the following warning may be noticed: 3959.023862 ------------ cut here ------------ 3959.023891 alloctag was not clear...

CVE-2026-23219

CVE-2026-23219 concerns the Linux kernel (mm/slab) where alloc_tagging_slab_free_hook was not invoked in memcg_alloc_abort_single, causing a spurious warning: “alloc_tag was not cleared …” when CONFIG_MEM_ALLOC_PROFILING_DEBUG is enabled. The issue arises because the existing __memcg_slab_post_al...