DEBIAN-CVE-2026-90040

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Forcefully invalidate SNP VMSA if its backing gmem page is zapped Wire up a gmeminvalidaterange call for SNP VMs, and use it to force vCPUs to reload/recheck their guest-provided VMSA if the backing gmem page is being...

CVE-2026-90040 KVM: SEV: Forcefully invalidate SNP VMSA if its backing gmem page is zapped

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Forcefully invalidate SNP VMSA if its backing gmem page is zapped Wire up a gmeminvalidaterange call for SNP VMs, and use it to force vCPUs to reload/recheck their guest-provided VMSA if the backing gmem page is being...

CVE-2026-64283

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM component. An integer overflow vulnerability exists in the guestmemfd functionality when binding memory slots. A malicious guest operating system could exploit this by providing crafted offset and size values, leading to...

CVE-2026-64283: Integer Overflow or Wraparound

In the Linux kernel, the following vulnerability has been resolved: KVM: guestmemfd: Treat memslot binding offset+size as unsigned values When binding a memslot to a guestmemfd file, treat the offset and size as unsigned values to fix a bug where the sum of the two can result in a false negative...

CVE-2026-64283: Integer Overflow or Wraparound

In the Linux kernel, the following vulnerability has been resolved: KVM: guestmemfd: Treat memslot binding offset+size as unsigned values When binding a memslot to a guestmemfd file, treat the offset and size as unsigned values to fix a bug where the sum of the two can result in a false negative...

CVE-2025-68810

CVE-2025-68810 concerns the Linux kernel KVM subsystem. The issue arises when toggling KVM_MEM_GUEST_MEMFD on an existing memslot: attempts to disable KVM_MEM_GUEST_MEMFD on a memslot created with a guest_memfd binding are rejected, but enabling is blocked while clearing the flag is not; this can...

CVE-2025-68810: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: KVM: Disallow toggling KVMMEMGUESTMEMFD on an existing memslot Reject attempts to disable KVMMEMGUESTMEMFD on a memslot that was initially created with a guestmemfd binding, as KVM doesn't support toggling KVMMEMGUESTMEMFD on...

CVE-2025-40274

In the Linux kernel, the following vulnerability has been resolved: KVM: guestmemfd: Remove bindings on memslot deletion when gmem is dying When unbinding a memslot from a guestmemfd instance, remove the bindings even if the guestmemfd file is dying, i.e. even if its file refcount has gone to zer...

CVE-2025-40274 KVM: guest_memfd: Remove bindings on memslot deletion when gmem is dying

In the Linux kernel, the following vulnerability has been resolved: KVM: guestmemfd: Remove bindings on memslot deletion when gmem is dying When unbinding a memslot from a guestmemfd instance, remove the bindings even if the guestmemfd file is dying, i.e. even if its file refcount has gone to zer...

CVE-2025-40274: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: KVM: guestmemfd: Remove bindings on memslot deletion when gmem is dying When unbinding a memslot from a guestmemfd instance, remove the bindings even if the guestmemfd file is dying, i.e. even if its file refcount has gone to zer...

CVE-2025-38396

In the Linux kernel, the following vulnerability has been resolved: fs: export anoninodemakesecureinode and fix secretmem LSM bypass Export anoninodemakesecureinode to allow KVM guestmemfd to create anonymous inodes with proper security context. This replaces the current pattern of calling...

CVE-2025-38396: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: fs: export anoninodemakesecureinode and fix secretmem LSM bypass Export anoninodemakesecureinode to allow KVM guestmemfd to create anonymous inodes with proper security context. This replaces the current pattern of calling...