CVE-2026-72380

In the Linux kernel, the following vulnerability has been resolved: xen/pvcalls: bound backend response reqid before indexing rsp pvcallsfronteventhandler takes reqid directly from the backend-supplied ring response and uses it to index the fixed-size bedata-rsp array for a memcpy and a store, wi...

CVE-2026-72380 xen/pvcalls: bound backend response req_id before indexing rsp[]

In the Linux kernel, the following vulnerability has been resolved: xen/pvcalls: bound backend response reqid before indexing rsp pvcallsfronteventhandler takes reqid directly from the backend-supplied ring response and uses it to index the fixed-size bedata-rsp array for a memcpy and a store, wi...

EUVD-2026-59279

In the Linux kernel, the following vulnerability has been resolved: xen/pvcalls: bound backend response reqid before indexing rsp pvcallsfronteventhandler takes reqid directly from the backend-supplied ring response and uses it to index the fixed-size bedata-rsp array for a memcpy and a store, wi...

CVE-2026-72380

CVE-2026-72380 affects the Linux kernel xen/pvcalls front-end. The issue arises when pvcalls_front_event_handler() uses the backend-supplied req_id (from the ring) to index bedata->rsp[] without a proper range check, allowing an out-of-bounds write if req_id exceeds PVCALLS_NR_RSP_PER_RING. Ad...

CVE-2026-72380 xen/pvcalls: bound backend response req_id before indexing rsp[]

In the Linux kernel, the following vulnerability has been resolved: xen/pvcalls: bound backend response reqid before indexing rsp pvcallsfronteventhandler takes reqid directly from the backend-supplied ring response and uses it to index the fixed-size bedata-rsp array for a memcpy and a store, wi...

PT-2026-72568

In the Linux kernel, the following vulnerability has been resolved: xen/pvcalls: bound backend response req id before indexing rsp pvcalls front event handler takes req id directly from the backend-supplied ring response and uses it to index the fixed-size bedata-rsp array for a memcpy and a stor...