CVE-2026-64320 nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page nvmetexecutediscgetlogpage validates only the dword alignment of the host-supplied Log Page Offset lpo. The 64-bit offset is then added to a small kzalloc'd...

CVE-2026-64320 nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page nvmetexecutediscgetlogpage validates only the dword alignment of the host-supplied Log Page Offset lpo. The 64-bit offset is then added to a small kzalloc'd...

CVE-2026-64320

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page nvmetexecutediscgetlogpage validates only the dword alignment of the host-supplied Log Page Offset lpo. The 64-bit offset is then added to a small kzalloc'd...

EUVD-2026-49032

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page nvmetexecutediscgetlogpage validates only the dword alignment of the host-supplied Log Page Offset lpo. The 64-bit offset is then added to a small kzalloc'd...

CVE-2026-64320

CVE-2026-64320 concerns the Linux kernel nvmet Discovery Get Log Page path. The underlying issue is that nvmet_execute_disc_get_log_page() only validates the dword alignment of the host-supplied Log Page Offset (lpo) but then adds a 64-bit offset to a small kzalloc’d buffer and copies data_len by...

CVE-2026-64302

CVE-2026-64302 is a memory leak in the Linux kernel (x86/mm) introduced by commit bf9e4e30f353, which switched page-table freeing to pagetable_free(). The function was also used to free vmemmap pages , but since vmemmap pages are not compound pages, __free_pages(page, compound_order(page)) only f...

CVE-2026-64300 perf/aux: Fix page UAF in map_range()

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...

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...

EUVD-2026-49007

In the Linux kernel, the following vulnerability has been resolved: mm: pageext: add count limit to pageextiternext to prevent invalid PFN access The pageext iteration API does not validate if the PFN still belongs to a valid section while advancing the iterator. When dynamically adding memory in...

CVE-2026-64295

In the Linux kernel, the following vulnerability has been resolved: mm: pageext: add count limit to pageextiternext to prevent invalid PFN access The pageext iteration API does not validate if the PFN still belongs to a valid section while advancing the iterator. When dynamically adding memory in...

CVE-2026-64295

CVE-2026-64295 affects the Linux kernel mm/page_ext API used during memory hotplug. The vulnerability arises because page_ext_iter_next may advance the iterator beyond the current valid memory region without verifying that the PFN still belongs to a valid section, which can trigger a NULL pointer...

CVE-2026-64289

CVE-2026-64289 affects the Linux kernel in the iommufd path, where iommufd_hwpt_invalidate() accepts user-controlled entry_num and entry_len. The description and connected details specify that entry_len can exceed the kernel struct size and trigger zero-check scans over excess bytes, while large ...

EUVD-2026-49001

In the Linux kernel, the following vulnerability has been resolved: iommufd: Set upper bounds on cache invalidation entrynum and entrylen iommufdhwptinvalidate takes a user-controlled entrynum and entrylen, each bounded only by U32MAX. An entrylen beyond the kernel's struct size makes the copy...

CVE-2026-64285 KVM: SEV: Pin source page for write when adding CPUID data for SNP guest

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Pin source page for write when adding CPUID data for SNP guest When populating a guestmemfd instance with the initial CPUID data for an SNP guest, acquire a writable pin on the source page as KVM will write back the...

CVE-2026-64285 KVM: SEV: Pin source page for write when adding CPUID data for SNP guest

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Pin source page for write when adding CPUID data for SNP guest When populating a guestmemfd instance with the initial CPUID data for an SNP guest, acquire a writable pin on the source page as KVM will write back the...

CVE-2026-64284 KVM: x86: Ensure vendor's exit handler runs before fastpath userspace exits

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Ensure vendor's exit handler runs before fastpath userspace exits Move the handling of fastpath userspace exits into vendor code to ensure KVM runs vendor specific operations that need to run before userspace gains...

CVE-2026-64284 KVM: x86: Ensure vendor's exit handler runs before fastpath userspace exits

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Ensure vendor's exit handler runs before fastpath userspace exits Move the handling of fastpath userspace exits into vendor code to ensure KVM runs vendor specific operations that need to run before userspace gains...

EUVD-2026-48997

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Pin source page for write when adding CPUID data for SNP guest When populating a guestmemfd instance with the initial CPUID data for an SNP guest, acquire a writable pin on the source page as KVM will write back the...

CVE-2026-64282

CVE-2026-64282 affects Linux kernel KVM on arm64. Root cause: kvm_translate_vncr() may race MMU notifier and fail to release a faulted PFN, leading to PFN leak/resource exhaustion. Fix: add kvm_release_faultin_page() for unused PFNs. Public advisories (Ubuntu/OpenSUSE/SUSE/RH/Debian OSV entries) ...

EUVD-2026-48994

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Don't leak PFN when kvmtranslatevncr races MMU notifier In the case that kvmtranslatevncr races with an MMU notifier the early return does not release a reference on the faulted in PFN. Add the necessary call to...