firefox: thunderbird: Denial-of-service in the Graphics: ImageLib component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Denial-of-service in the Graphics: ImageLib component...

CVE-2026-53140

In the Linux kernel, the following vulnerability has been resolved: drm/v3d: Fix vaddr leak when indirect CSD has zeroed workgroups v3drewritecsdjobwgcountsfromindirect maps both the indirect buffer and the workgroup buffer and is expected to release them before returning. When any of the workgro...

CVE-2026-53144

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix NULL dereference in getqueueids When usrqueueidarray is NULL and numqueues is non-zero, getqueueids returns NULL. The callers check only ISERR on the return value; since ISERRNULL == false the check passes, and...

UBUNTU-CVE-2026-53143

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix buffer overflow in SDMA queue checkpoint/restore on GFX11 The v11 MQD manager incorrectly assigned the CP-compute variants of checkpointmqd/restoremqd for KFDMQDTYPESDMA queues. These functions use sizeofstruct...

UBUNTU-CVE-2026-53139

In the Linux kernel, the following vulnerability has been resolved: drm/v3d: Skip CSD when it has zeroed workgroups A compute shader dispatch encodes its workgroup counts in the CFG0..CFG2 registers. Kicking off a dispatch with a zero count in any of the three dimensions is invalid. First, the...

CVE-2026-53141

In the Linux kernel, the following vulnerability has been resolved: drm/v3d: Fix global performance monitor reference counting In the SETGLOBAL ioctl, v3dperfmonfind bumps the reference count on the perfmon it returns, but v3dperfmonsetglobalioctl and v3dperfmondelete fail to release that referen...

CVE-2026-53213 drm/vc4: fix krealloc() memory leak

In the Linux kernel, the following vulnerability has been resolved: drm/vc4: fix krealloc memory leak Don't just overwrite the original pointer passed to krealloc with its return value without checking latter: MEM = kreallocMEM, SZ, GFP; If krealloc returns NULL, that erases the pointer to the...

CVE-2026-53213 drm/vc4: fix krealloc() memory leak

In the Linux kernel, the following vulnerability has been resolved: drm/vc4: fix krealloc memory leak Don't just overwrite the original pointer passed to krealloc with its return value without checking latter: MEM = kreallocMEM, SZ, GFP; If krealloc returns NULL, that erases the pointer to the...

CVE-2026-53201

In the Linux kernel, the following vulnerability has been resolved: Revert "drm/xe: Skip exec queue schedule toggle if queue is idle during suspend" This reverts commit 8533051ce92015e9cc6f75e0d52119b9d91610b6. The idle-skip optimization bypasses GuC suspend, so the GPU may not perform the contex...

CVE-2026-53190 drm/virtio: fix dma_fence refcount leak on error in virtio_gpu_dma_fence_wait()

In the Linux kernel, the following vulnerability has been resolved: drm/virtio: fix dmafence refcount leak on error in virtiogpudmafencewait dmafenceunwrapforeach internally calls dmafenceunwrapfirst which does cursor-chain = dmafencegethead, taking an extra reference. On normal loop completion,...

CVE-2026-53145

Summary of CVE-2026-53145 (Linux kernel drm/gem change_handle race) : A race between gem_close and gem_change_handle ioctls in the DRM GEM subsystem was addressed but not cleanly fixed initially. The root cause involved confusion around the local handle variable (which is the new handle) and seve...

CVE-2026-53143

In the Linux kernel DRM/AMD KFD path, CVE-2026-53143 describes a buffer overflow during CRIU checkpoint/restore for SDMA queues on Navi3x. The v11 MQD manager used the larger v11_compute_mqd buffer (2048 bytes) for KFD_MQD_TYPE_SDMA, instead of the smaller v11_sdma_mqd (512 bytes), causing a 1536...

CVE-2026-53143 drm/amdkfd: Fix buffer overflow in SDMA queue checkpoint/restore on GFX11

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix buffer overflow in SDMA queue checkpoint/restore on GFX11 The v11 MQD manager incorrectly assigned the CP-compute variants of checkpointmqd/restoremqd for KFDMQDTYPESDMA queues. These functions use sizeofstruct...

CVE-2026-53143

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix buffer overflow in SDMA queue checkpoint/restore on GFX11 The v11 MQD manager incorrectly assigned the CP-compute variants of checkpointmqd/restoremqd for KFDMQDTYPESDMA queues. These functions use sizeofstruct...

CVE-2026-53140 drm/v3d: Fix vaddr leak when indirect CSD has zeroed workgroups

In the Linux kernel, the following vulnerability has been resolved: drm/v3d: Fix vaddr leak when indirect CSD has zeroed workgroups v3drewritecsdjobwgcountsfromindirect maps both the indirect buffer and the workgroup buffer and is expected to release them before returning. When any of the workgro...

CVE-2026-53139

CVE-2026-53139 concerns the Linux kernel drm/v3d path where a compute shader dispatch with zeroed workgroup counts (CFG0..CFG2) could be mishandled; the fix ensures the indirect CSD job is not submitted when any dimension is zero, causing the dispatch to complete as a no-op. Connected sources sho...

CVE-2026-53138 drm/amd/display: Bound VBIOS record-chain walk loops

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Bound VBIOS record-chain walk loops Why & How All record-chain walk loops in biosparser.c and biosparser2.c use for;; and only terminate on a 0xFF recordtype sentinel or zero recordsize. A malformed VBIOS image...

CVE-2026-53136

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Clamp VBIOS HDMI retimer register count to array size Why & How The VBIOS integrated info tables v111 and v21 contain HdmiRegNum and Hdmi6GRegNum fields that are used as loop bounds when copying retimer I2C...

RLSA-2026:27717 Important: firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. Security Fixes: firefox: thunderbird: Sandbox escape in the DOM: Workers component CVE-2026-12294 firefox: thunderbird: Information disclosure, sandbox escape in the Security: Process...

CVE-2026-12303

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Information disclosure due to incorrect boundary conditions in the Graphics: WebGPU component...