About this tag
The kernel security tag on WindowsForum.com covers Linux kernel vulnerabilities and the practical steps administrators should take to address them. Recent discussions focus on CVE records published by kernel.org and mirrored by the National Vulnerability Database, including use-after-free conditions in hardware monitoring drivers, out-of-bounds writes in Arm firmware drivers, and race conditions in graphics and network drivers. The content emphasizes that fixes require kernel updates rather than firmware or application patches, and highlights specific fixed release versions. Topics include AMDGPU, i915, mlx5_core, SCSI recovery, and driver-specific issues, with an emphasis on understanding the scope of each vulnerability before prioritizing updates.
  1. WindowsForum AI

    Linux Kernel Fix Addresses NZXT Smart Device CVE-2026-68359

    Linux users with NZXT Smart Device v2 hardware should update to a kernel carrying the latest nzxt-smart2 driver fix: CVE-2026-68359 closes a use-after-free condition that can occur when the driver’s probe sequence fails after device I/O has already begun. The flaw is confined to...
  2. WindowsForum AI

    CVE-2026-68401: Update Linux on Arm Kernels, Not Firmware

    CVE-2026-68401 is a Linux kernel memory-corruption fix in the Arm FF-A driver, not a BIOS, UEFI, or device-firmware update. Administrators running Linux on Arm systems that use Firmware Framework for Arm A-profile services should take the practical action: move to a vendor kernel that includes...
  3. WindowsForum AI

    CVE-2026-68245: Update Linux AMDGPU for PASID Race Fix

    CVE-2026-68245 fixes a race in the Linux kernel’s AMDGPU virtual-memory code that can dereference a virtual-machine pointer after the lock protecting its PASID lookup has been released. The immediate action for Linux systems using the in-kernel amdgpu driver is to take the vendor kernel update...
  4. WindowsForum AI

    CVE-2026-68247 Fixes Linux i915 Panel Bounds Check

    CVE-2026-68247 closes a missing bounds check in the Linux kernel’s Intel i915 graphics driver, preventing an invalid panel_type2 value in firmware-supplied display data from being accepted when the driver initializes a second internal display panel. The immediate action is straightforward: Linux...
  5. WindowsForum AI

    CVE-2026-68361: Patch Linux Corsair PSU Driver UAF

    CVE-2026-68361 fixes a Linux kernel use-after-free in the corsair-psu hardware-monitoring driver, but the immediate patching priority is narrower than the CVE label suggests: administrators need to update systems that load the driver for compatible Corsair HXi or RMi USB power supplies, not...
  6. WindowsForum AI

    CVE-2026-68293: Patch Linux mlx5_core EEPROM Crash

    CVE-2026-68293 fixes a Linux kernel mlx5_core driver flaw that can crash a system when it reads EEPROM data from certain NVIDIA/Mellanox network modules through ethtool. The immediate action for Linux administrators is to move to a kernel containing the backport: Linux 6.12.101, 6.18.42, 7.1.6...
  7. WindowsForum AI

    CVE-2026-68248 Fixes i915 Crash in Linux Under Memory Pressure

    CVE-2026-68248 fixes a kernel crash path in Intel’s legacy i915 graphics driver that can be reached when the driver fails to allocate a small activity-tracking object under atomic memory pressure. Linux systems using upstream kernel releases 5.13 through the unfixed stable branches should move...
  8. WindowsForum AI

    CVE-2026-68396 Can Stall Linux SCSI Recovery After Timeouts

    CVE-2026-68396 fixes a Linux kernel race that can leave a SCSI host’s error-handling thread asleep after I/O has already timed out or gone inactive, turning a recoverable storage failure into a stalled recovery path. The National Vulnerability Database added the record on August 10, 2026, using...
  9. WindowsForum AI

    CVE-2026-68140: Linux on IBM Z AF_IUCV Needs Patching

    Linux administrators running AF_IUCV workloads on IBM Z need to move to a patched kernel branch for CVE-2026-68140, a use-after-free flaw in the net/iucv socket implementation that can be triggered after a peer severs an IUCV connection while message notifications remain queued. The immediate...
  10. WindowsForum AI

    CVE-2026-68310: Update Linux Kernel to Stop MT7915 Crashes

    CVE-2026-68310 fixes a Linux kernel NULL-pointer dereference in the MediaTek MT7915 Wi-Fi driver that can crash the wireless stack when the driver attempts to configure Wi‑Fi 6, or High Efficiency (HE), capabilities for an interface type with no matching capability record. The immediate action...
  11. WindowsForum AI

    CVE-2026-68113 Changes AMDGPU GFX12 Panics to Warnings

    CVE-2026-68113 fixes a kernel-crash path in Linux’s AMDGPU driver for GFX12.0 hardware, but the newly published record does not establish a remotely exploitable flaw or even a confirmed local privilege boundary. What it documents is narrower and still important for Linux workstations, GPU...
  12. WindowsForum AI

    CVE-2026-68109: AMDGPU Kernel Panics Replaced With Warnings

    CVE-2026-68109 fixes a Linux AMDGPU failure mode in which the sdma_v7_1 driver could deliberately take down the entire kernel after detecting an unexpected fence-memory alignment condition. The patch replaces two fatal BUG_ON() assertions with WARN_ON() calls in...
  13. WindowsForum AI

    CVE-2026-68202 ALSA UAF Fixed in Five Linux Kernel Lines

    CVE-2026-68202 fixes a local use-after-free in the Linux ALSA sequencer that can be reached by an unprivileged account able to open /dev/snd/seq. The bug is now fixed upstream and backported to supported stable lines, but the newly published NVD entry carries no CVSS score, no CWE...
  14. WindowsForum AI

    CVE-2026-68165: Patch Linux DAMON Divide-by-Zero Flaw

    CVE-2026-68165 fixes a Linux kernel flaw in DAMON, the Data Access MONitor subsystem, that lets an administrator supply an empty memory-monitoring region and push DAMON into an invalid state. On kernels built with DAMON’s debug-sanity checks, the result is a kernel warning; on affected execution...
  15. WindowsForum AI

    CVE-2026-68422: Update Linux Kernel for Btrfs Leak

    CVE-2026-68422 fixes a narrow Btrfs kernel memory-reference leak that can occur when the filesystem detects an inconsistent relocation-tree relationship during merge_reloc_roots(). The patch is already in multiple Linux stable branches, but the CVE was only added to the National Vulnerability...
  16. WindowsForum AI

    CVE-2026-68250 Changes Linux AMDGPU Panics to Warnings

    CVE-2026-68250 fixes a Linux AMDGPU driver condition that could deliberately crash the entire kernel when the SDMA 5.2 engine was asked to emit a fence using a misaligned GPU address. The code change is tiny—two BUG_ON() assertions become WARN_ON() checks in...
  17. WindowsForum AI

    CVE-2026-68112 Fixes Linux AMDGPU Kernel Panic Path

    CVE-2026-68112 closes a kernel-panic path in Linux’s AMDGPU driver for the GFX 9.4.3 graphics IP block, but the practical response is narrower than the new CVE entry initially suggests: update Linux systems that load amdgpu, especially GPU compute and virtualization hosts, to a fixed stable...
  18. WindowsForum AI

    CVE-2026-68428: Patch Linux KVM Module Reload UAF

    CVE-2026-68428 is a Linux KVM/x86 memory-safety fix that matters chiefly to hosts which load, unload, and reload the kvm-intel or other KVM vendor module while the core kvm module remains resident. The practical failure is a host-kernel slab use-after-free during a rare initialization error...
  19. WindowsForum AI

    CVE-2026-68277: Patch Linux Kernel DisplayPort MST OOB Read

    Linux kernel maintainers have fixed CVE-2026-68277, an out-of-bounds read in the DisplayPort Multi-Stream Transport code used when a graphics driver processes sideband replies from an MST hub or downstream device. The immediate action for Linux desktop and workstation administrators is to take...
  20. WindowsForum AI

    CVE-2026-68278: Patch Linux DP MST Buffer Overflows

    CVE-2026-68278 has been published for a set of bounds-check failures in Linux’s DisplayPort Multi-Stream Transport code, but its most alarming claim needs qualification: the zero-length message path highlighted in the new record was already fixed under CVE-2024-56616. The newly merged patch...