HPHardwareDiagnostics-PoC

HPHardwareDiagnostics-PoC HP Hardware Diagnostic の EtdSupp ドライバー向け PoC エクスプロイト CVE-2023-32673/PSR-2022-0209 Building Visual Studio 2019 で開く リリースビルドする 賞賛する（あるいはしない） Summary 仮想メモリの読み書きができる非常にシンプルな小さなドライバー。MmMapIoSpace などはありません。 Disclaimer ダイエットソーダは不味い。...

Astra Linux – Vulnerability in Linux

A issue was discovered in Linux: improper handling of VMIO|VMPFNMAP vmas in KVM can bypass RO checks and cause pages to be freed while still accessible by the VMM and guest. This allows users who have the ability to start and control a VM to read/write random pages of memory, potentially leading ...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: powerpc/fixmap: Fixed the VM debug warning when unmapping a fixmap entry. The unmapping of a fixmap entry is performed by calling setfixmap, with FIXMAPPAGECLEAR as the flag. Currently, powerpc setfixmap calls mapkernelpage...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/i915: Avoid lock inversion when pinning to GGTT on CHV/BXT+VTD On completion of i915vmapinww, a synchronous variant of dmafenceworkcommit is called. When pinning a VMA to GGTT address space on a Cherry View family processor, ...

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

In the Linux kernel, the following vulnerabilities have been resolved: drm/i915/gem: Fixed the calculation of the boundaries of virtual memory mappings. The current approach calculates the size of the mapped area based on the smaller value between the requested size and the actual size, without...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: drm/amdgpu: Further fixes were made to the call order in amdgputtmmove v2. This resolves the issue in drm/amdgpu: fixing the ftrace event where amdgpuboMove always moves objects on the same heap. The fundamental problem is tha...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: BPF: Use VMMAP instead of VMALLOC for the ringbuf area. After the commit 2fd3fb0be1d1 “KASAN, vmalloc: Unpoison VMALLOC pages after mapping”, non-VMALLOC mappings will be marked as accessible in getvmareanode when KASAN is enable...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: xen/gntdev: Accommodation for VMA splitting Prior to this commit, the gntdev driver code did not handle the following scenario correctly with paravirtualized PV Xen domains: The user process sets up a gntdev mapping consisting of...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: Avoid corrupting the page-mapping in hugetlbmcopyatomicpte. In the MCOPYATOMICCONTINUE case with a non-shared VMA, the pages in the page cache are stored in the ptes. However, hugepageaddnewanonrmap is called for thes...

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: comedi: Flushing partial mappings in the error case If some remappfnrange calls succeeded before one failed, we still have buffer pages mapped into the user-space page tables when we drop the buffer reference with...

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

In the Linux kernel, the following vulnerability has been resolved: ksm: The range-walk function is used to bypass holes in scangetnextrmapitem. Currently, scangetnextrmapitem walks every page address in a VMA to locate mergeable pages. This approach becomes highly inefficient when scanning large...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

A issue was discovered in include/asm-generic/tlb.h in the Linux kernel before version 5.19. Due to a race condition between unmapmappingrange and munmap, a device driver can free a page while it still has stale TLB entries. This only occurs in situations involving VMPFNMAP VMAs...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: ext4: Do not report a bug if someone dirty pages without first consulting ext4. The unpinuserpagesremote function dirty pages without properly warning the file system in advance. Jan Kara noted this race condition in 20181...

JLSEC-2026-1362 Wasmtime has data leakage between pooling allocator instances

Impact Wasmtime's implementation of its pooling allocator contains a bug where in certain configurations the contents of linear memory can be leaked from one instance to the next. The implementation of resetting the virtual memory permissions for linear memory used the wrong predicate to determin...

Linux Distros Unpatched Vulnerability : CVE-2026-72357

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - uprobes/x86: Use proper mmstruct in inuprobetrampoline In the unregister path we use inuprobetrampoline check with current-mm for the VMA lookup, which is wrong...

CVE-2026-68101

A flaw was found in the Linux kernel's AMD GPU amdgpu driver. During the allocation or deallocation of a user pointer buffer object, a critical reference to its virtual memory object can become unavailable. This improper handling of memory submissions could lead to system instability or a denial ...

CVE-2026-68275

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: check amdgpuvmbofind result in GETMAPPINGINFO The AMDGPUGEMOPGETMAPPINGINFO path of amdgpugemopioctl looks up the bova for the buffer object in the caller's VM via amdgpuvmbofind, but uses the returned pointer without...

CVE-2026-68264

In the Linux kernel, the following vulnerability has been resolved: drm/xe/pt: Reset currentop in xeptupdateopsinit xeptupdateopsinit fails to reset currentop to 0. On the vmbind path, opsexecute calls xeptupdateopsprepare inside the xevalidationguard / drmexecuntilalllocked loop. When that loop...

CVE-2026-68265

In the Linux kernel, the following vulnerability has been resolved: drm/xe/vm: Fix BO prefetch with CONSULTMEMADVISEPREFLOC When prefetch region is DRMXECONSULTMEMADVISEPREFLOC for a BO VMA, the code used it as an index into regiontomemtype, causing an out-of-bounds access since the value is -1...

CVE-2026-68260

In the Linux kernel, the following vulnerability has been resolved: drm/imagination: acquire vmctx-lock before mapping memory to GPU VM The drm gpuvm code doesn't protect find operation against map operation, and the driver needs to ensure a map operation shouldn't happen when a find operation is...