CVE-2026-64063

CVE-2026-64063 affects the Linux kernel's netfslib (network file systems library) subsystem. The bug is in netfs_perform_write(): when a partially written streaming-write folio is overwritten by a subsequent write(), the function fails to discard the attached netfs_folio struct and mishandles par...

CVE-2026-64063

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix streaming write being overwritten In order to avoid reading whilst writing, netfslib will allow "streaming writes" in which dirty data is stored directly into folios without reading them first. Such folios are marked...

CVE-2026-64063 netfs: Fix streaming write being overwritten

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix streaming write being overwritten In order to avoid reading whilst writing, netfslib will allow "streaming writes" in which dirty data is stored directly into folios without reading them first. Such folios are marked...

CVE-2026-63852

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set nouserfence for VCN v4.0.3 enc ring VCN encoder and decoder rings do not support 64-bit user fence writes, reject CS submissions with user fences. cherry picked from commit...

CVE-2026-63996

CVE-2026-63996 concerns the Linux kernel ethtool cmis path. The issue arises when a malicious SFP module responds with a reply length longer than what cmis_cdb_process_reply() expects, potentially causing out-of-bounds writes. The fix involves strengthening the existing length checks to also guar...

CVE-2026-63949 auxdisplay: line-display: fix OOB read on zero-length message_store()

In the Linux kernel, the following vulnerability has been resolved: auxdisplay: line-display: fix OOB read on zero-length messagestore linedispdisplay unconditionally reads msgcount - 1 before checking whether count is zero, so a write of zero bytes to the message sysfs attribute hits msg-1:...

CVE-2026-63855

CVE-2026-63855 affects the Linux kernel's drm/amdgpu/vcn component, specifically VCN v2.5 encoder/decoder rings. The vulnerability arises because these rings do not support 64-bit user fence writes, leading to rejection of CS submissions that use user fences. A fix has been applied by setting no_...

CVE-2026-63856

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set nouserfence for VCN v2.0 enc/dec rings VCN encoder and decoder rings do not support 64-bit user fence writes, reject CS submissions with user fences. cherry picked from commit...

CVE-2026-63856 drm/amdgpu/vcn: set no_user_fence for VCN v2.0 enc/dec rings

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set nouserfence for VCN v2.0 enc/dec rings VCN encoder and decoder rings do not support 64-bit user fence writes, reject CS submissions with user fences. cherry picked from commit...

CVE-2026-63854

CVE-2026-63854 affects the Linux kernel’s DRM amdgpu/vcn path. The issue is that VCN v3.0 encoder/decoder rings do not support 64-bit user fence writes, causing the kernel to reject CS submissions that use user fences. The vulnerability has a CVSS 3.1 base score of 7.8 (HIGH) with local access, l...

CVE-2026-63854 drm/amdgpu/vcn: set no_user_fence for VCN v3.0 enc/dec rings

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set nouserfence for VCN v3.0 enc/dec rings VCN encoder and decoder rings do not support 64-bit user fence writes, reject CS submissions with user fences. cherry picked from commit...

CVE-2026-63851 drm/amdgpu/vcn: set no_user_fence for VCN v4.0.5 enc ring

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set nouserfence for VCN v4.0.5 enc ring VCN encoder and decoder rings do not support 64-bit user fence writes, reject CS submissions with user fences. cherry picked from commit...

CVE-2026-63850

The CVE-2026-63850 vulnerability affects the Linux kernel’s DRM/AMDGPU VCN path. Specifically, the VCN encoder/decoder rings in certain AMDGPU environments do not support 64-bit user fence writes, and are now prevented from submitting CS with user fences. The issue arises in VCN v5.0.0 enc ring b...

CVE-2026-63849

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set nouserfence for VCN v5.0.1 enc ring VCN encoder and decoder rings do not support 64-bit user fence writes, reject CS submissions with user fences. cherry picked from commit...

CVE-2026-63849 drm/amdgpu/vcn: set no_user_fence for VCN v5.0.1 enc ring

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set nouserfence for VCN v5.0.1 enc ring VCN encoder and decoder rings do not support 64-bit user fence writes, reject CS submissions with user fences. cherry picked from commit...

CVE-2026-63847

CVE-2026-63847 affects the Linux kernel DRM/amdgpu/jpeg component; JPEG v2.5 rings do not support 64-bit user fence writes, causing rejection of CS submissions with user fences. A fix was cherry-picked from commit 3216a7f4e2642bda5fd14f57586e835ae9202587. References indicate the issue is addresse...

CVE-2026-63848 drm/amdgpu/jpeg: set no_user_fence for JPEG v2.0 ring

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/jpeg: set nouserfence for JPEG v2.0 ring JPEG rings do not support 64-bit user fence writes, reject CS submissions with user fences. cherry picked from commit 96179da0c6b059eb31706a0abe8dd6381c533143...

CVE-2026-63842 drm/amdgpu/jpeg: set no_user_fence for JPEG v5.0.0 ring

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/jpeg: set nouserfence for JPEG v5.0.0 ring JPEG rings do not support 64-bit user fence writes, reject CS submissions with user fences. cherry picked from commit 0f43893d3cd478fa57836697525b338817c9c23d...

CVE-2026-63841 drm/amdgpu/jpeg: set no_user_fence for JPEG v5.0.1 ring

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/jpeg: set nouserfence for JPEG v5.0.1 ring JPEG rings do not support 64-bit user fence writes, reject CS submissions with user fences. cherry picked from commit 742a98e2e81702df8fe1b1eccee5223220a03dc2...

CVE-2026-63833 ntfs3: reject direct userspace writes to reserved $LX* xattrs

In the Linux kernel, the following vulnerability has been resolved: ntfs3: reject direct userspace writes to reserved $LX xattrs NTFS3 uses $LXUID, $LXGID, $LXMOD and $LXDEV as internal WSL permission metadata and reloads them into iuid, igid and imode from ntfsgetwslperm. Because the empty-prefi...