EUVD-2026-48656

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: hyper-v: Bound the bank index when querying sparse banks When checking if a VP ID is included in a sparse bank set, explicitly check that the ID can actually be contained in a sparse bank the TLFS allows for a maximum o...

CVE-2026-64247

CVE-2026-64247 affects the Linux kernel KVM code for x86 hyper-v, where VP IDs are checked against a sparse-bank set. The issue arises when handling a paravirtual TLB flush for L2: the VP ID can be copied from the enlightened VMCS without bounds checking, potentially exceeding the allowed 64 bank...

CVE-2026-64247 KVM: x86: hyper-v: Bound the bank index when querying sparse banks

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: hyper-v: Bound the bank index when querying sparse banks When checking if a VP ID is included in a sparse bank set, explicitly check that the ID can actually be contained in a sparse bank the TLFS allows for a maximum o...

CVE-2026-64247 KVM: x86: hyper-v: Bound the bank index when querying sparse banks

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: hyper-v: Bound the bank index when querying sparse banks When checking if a VP ID is included in a sparse bank set, explicitly check that the ID can actually be contained in a sparse bank the TLFS allows for a maximum o...

CVE-2026-64247

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: hyper-v: Bound the bank index when querying sparse banks When checking if a VP ID is included in a sparse bank set, explicitly check that the ID can actually be contained in a sparse bank the TLFS allows for a maximum o...

CVE-2026-64235

The CVE-2026-64235 entry describes a Linux kernel vulnerability in x86 ftrace where relocating %rip-relative percpu refs in dynamic trampolines caused a crash on the first call to a traced function when CONFIG_CALL_DEPTH_TRACKING is enabled on retbleed-affected platforms (e.g., Skylake). The root...

EUVD-2026-48644

In the Linux kernel, the following vulnerability has been resolved: x86/ftrace: Relocate %rip-relative percpu refs in dynamic trampolines With CONFIGCALLDEPTHTRACKING enabled on an x86 retbleed-affected platform eg: Skylake, with retbleed=stuff, registering a dynamic ftrace trampoline crashes on...

CVE-2026-64235 x86/ftrace: Relocate %rip-relative percpu refs in dynamic trampolines

In the Linux kernel, the following vulnerability has been resolved: x86/ftrace: Relocate %rip-relative percpu refs in dynamic trampolines With CONFIGCALLDEPTHTRACKING enabled on an x86 retbleed-affected platform eg: Skylake, with retbleed=stuff, registering a dynamic ftrace trampoline crashes on...

CVE-2026-64235 x86/ftrace: Relocate %rip-relative percpu refs in dynamic trampolines

In the Linux kernel, the following vulnerability has been resolved: x86/ftrace: Relocate %rip-relative percpu refs in dynamic trampolines With CONFIGCALLDEPTHTRACKING enabled on an x86 retbleed-affected platform eg: Skylake, with retbleed=stuff, registering a dynamic ftrace trampoline crashes on...

CVE-2026-64235

In the Linux kernel, the following vulnerability has been resolved: x86/ftrace: Relocate %rip-relative percpu refs in dynamic trampolines With CONFIGCALLDEPTHTRACKING enabled on an x86 retbleed-affected platform eg: Skylake, with retbleed=stuff, registering a dynamic ftrace trampoline crashes on...

EUVD-2026-48637

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Disable broadcast TLB flush when PCID is disabled Booting with "nopcid" clears X86FEATUREPCID and keeps CR4.PCIDE from being set to one. On AMD CPUs that support INVLPGB, broadcast TLB flushing remains enabled. There are...

CVE-2026-64229 x86/mm: Disable broadcast TLB flush when PCID is disabled

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Disable broadcast TLB flush when PCID is disabled Booting with "nopcid" clears X86FEATUREPCID and keeps CR4.PCIDE from being set to one. On AMD CPUs that support INVLPGB, broadcast TLB flushing remains enabled. There are...

CVE-2026-64229

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Disable broadcast TLB flush when PCID is disabled Booting with "nopcid" clears X86FEATUREPCID and keeps CR4.PCIDE from being set to one. On AMD CPUs that support INVLPGB, broadcast TLB flushing remains enabled. There are...

CVE-2026-64229 x86/mm: Disable broadcast TLB flush when PCID is disabled

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Disable broadcast TLB flush when PCID is disabled Booting with "nopcid" clears X86FEATUREPCID and keeps CR4.PCIDE from being set to one. On AMD CPUs that support INVLPGB, broadcast TLB flushing remains enabled. There are...

CVE-2026-64229

The CVE-2026-64229 entry concerns the Linux kernel issue in x86 memory management: when PCID is disabled, broadcast TLB flush can remain enabled if INVLPGB is present, leading to a mismatch between global ASID handling and PCID state. The vulnerable flow toggles about three CPUs, with mm_global_a...

CVE-2026-64226

In the Linux kernel, the following vulnerability has been resolved: schedext: Avoid UAF in scxrootenableworkfn init failure path In scxrootenableworkfn, puttaskstructp is called before scxerror dereferences p-comm and p-pid. If the iterator's reference is the last drop, the task is freed...

EUVD-2026-48634

In the Linux kernel, the following vulnerability has been resolved: schedext: Avoid UAF in scxrootenableworkfn init failure path In scxrootenableworkfn, puttaskstructp is called before scxerror dereferences p-comm and p-pid. If the iterator's reference is the last drop, the task is freed...

CVE-2026-64226

CVE-2026-64226 affects the Linux kernel, specifically the sched_ext path. The vulnerability arises in scx_root_enable_workfn(): put_task_struct(p) is called before scx_error() dereferences p->comm and p->pid. If the iterator reference is the last drop, the task is freed synchronously and th...

CVE-2026-64226 sched_ext: Avoid UAF in scx_root_enable_workfn() init failure path

In the Linux kernel, the following vulnerability has been resolved: schedext: Avoid UAF in scxrootenableworkfn init failure path In scxrootenableworkfn, puttaskstructp is called before scxerror dereferences p-comm and p-pid. If the iterator's reference is the last drop, the task is freed...

CVE-2026-64226

In the Linux kernel, the following vulnerability has been resolved: schedext: Avoid UAF in scxrootenableworkfn init failure path In scxrootenableworkfn, puttaskstructp is called before scxerror dereferences p-comm and p-pid. If the iterator's reference is the last drop, the task is freed...