CVE-2023-3338-DECPwn

DECPwn Practicing different Linux kernel exploitation techniques with my DECnet vulnerability and null page mapping enabled. Scenarios Everything disabled : qemu-system-x8664 -append "nosmap nosmep nopti nokaslr" Code execution is redirected to the output function in userland, which invokes...

CVE-2023-2598

CVE-2023-2598 what's iouring? ​ iouring is a system call interface for Linux. It has supported almost all system call so far, not only read and write initially. It enables an application to initiate system calls that can be performed asynchronously. Submission and Completion Queues At the core of...

SPOILER

SPOILER: los peligros de la carga especulativa potencian los ataques Rowhammer y de caché CVE-2019-0162 INTEL-SA-00238 https://www.usenix.org/system/files/sec19-islam.pdf @inproceedings 236252, author = Saad Islam and Ahmad Moghimi and Ida Bruhns and Moritz Krebbel and Berk Gulmezoglu and Thomas...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: riscv: Rewrite kernelmappages to prevent sleeping in an invalid context. kernelmappages is a debugging function that clears the valid bit in page table entries for deallocated pages, thereby detecting illegal memory accesses to...

Astra Linux – Vulnerability in Linux 5.10

A flaw was discovered in the pfnswapentrytopage function within the memory management subsystem of the Linux kernel. In this flaw, an attacker with local user privileges may cause a denial-of-service attack due to a BUG statement that references pmdt x...

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...

CVE-2026-68240

A flaw was found in the Linux kernel's drm/gpusvm component. When drmgpusvmgetpages encounters an error during page mapping, it fails to properly unmap previously created device mappings. This oversight can lead to a device mapping leak, consuming system resources and potentially impacting system...

EUVD-2026-55341

In the Linux kernel, the following vulnerability has been resolved: drm/gpusvm: publish dpagemap early to avoid device mapping leak on error drmgpusvmgetpages only stored the local dpagemap into svmpages-dpagemap on the success path. If a later page failed e.g. -EOPNOTSUPP when ctx-allowmixed is...

K000162723: Linux kernel vulnerability CVE-2026-53199

Security Advisory Description In the Linux kernel, the following vulnerability has been resolved: hvnetvsc: use kmaplocalpage in netvsccopytosendbuf netvsccopytosendbuf copies page buffer entries into the VMBus send buffer using phystovirt on the entry PFN. Entries for the RNDIS header and the sk...

CVE-2026-64300

In the Linux kernel, the following vulnerability has been resolved: perf/aux: Fix page UAF in maprange maprange reads rb-auxpages, rb-auxnrpages and rb-auxpgoff via perfmmaptopage while holding only event-mmapmutex. Those fields are serialized by rb-auxmutex, and mmapmutex is per event. Thus, two...

kernel: KVM: x86: Fix shadow paging use-after-free due to unexpected role

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM x86 shadow paging mechanism. This vulnerability occurs when a host page directory entry PDE mapping is changed from within the guest, leading to an unexpected role mismatch in shadow paging. This mismatch can cause a...

SUSE CVE-2026-64130

In the Linux kernel, the following vulnerability has been resolved: mm/pagealloc: fix initialization of tags of the huge zero folio with initonfree GFPZEROTAGS semantics are currently a bit weird, but effectively this flag is only ever set alongside GFPZERO and GFPSKIPKASAN. If we run with...

CVE-2026-64181 mm: fix __vm_normal_page() to handle missing support for pmd_special()/pud_special()

In the Linux kernel, the following vulnerability has been resolved: mm: fix vmnormalpage to handle missing support for pmdspecial/pudspecial On x86 32-bit with THP enabled, zaphugepmd is seen to generate a "WARNING: mm/memory.c:735 at vmnormalpage+0x6a/0x7d", from the VMWARNONONCEiszeropfnpfn ||...

EUVD-2026-45815

In the Linux kernel, the following vulnerability has been resolved: mm/pagealloc: fix initialization of tags of the huge zero folio with initonfree GFPZEROTAGS semantics are currently a bit weird, but effectively this flag is only ever set alongside GFPZERO and GFPSKIPKASAN. If we run with...

CVE-2026-34196: Use After Free

Software installed and run as a non-privileged user may conduct improper GPU system calls to cause an integer overflow and map two GPU virtual addresses to the same physical address. One of these virutal mappings can be freed along with the physical page, allowing for a read/write UAF via the...

Linux Distros Unpatched Vulnerability : CVE-2026-53199

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - hvnetvsc: use kmaplocalpage in netvsccopytosendbuf netvsccopytosendbuf copies page buffer entries into the VMBus send buffer using phystovirt on the entry PFN...

CVE-2026-53199

In the Linux kernel, the following vulnerability has been resolved: hvnetvsc: use kmaplocalpage in netvsccopytosendbuf netvsccopytosendbuf copies page buffer entries into the VMBus send buffer using phystovirt on the entry PFN. Entries for the RNDIS header and the skb linear data come from...

CVE-2026-53199

In the Linux kernel, the following vulnerability has been resolved: hvnetvsc: use kmaplocalpage in netvsccopytosendbuf netvsccopytosendbuf copies page buffer entries into the VMBus send buffer using phystovirt on the entry PFN. Entries for the RNDIS header and the skb linear data come from...

CVE-2026-53199 hv_netvsc: use kmap_local_page in netvsc_copy_to_send_buf

In the Linux kernel, the following vulnerability has been resolved: hvnetvsc: use kmaplocalpage in netvsccopytosendbuf netvsccopytosendbuf copies page buffer entries into the VMBus send buffer using phystovirt on the entry PFN. Entries for the RNDIS header and the skb linear data come from...

CVE-2026-53199

CVE-2026-53199 pertains to the Linux kernel hv_netvsc path, where netvsc_copy_to_send_buf previously used phys_to_virt() on page buffer PFNs and could fault when fragments referenced high mem/user pages on 32-bit x86 with HIGHMEM. The fix maps pages with kmap_local_page() and reconstructs native ...