Stanislav Fomichev 849b1664db xsk: validate metadata when processing requests ... The zero-copy path validates TX metadata while obtaining the descriptor context, then reads it again later when preparing the hardware request. User space can change the metadata between those operations and bypass the original validation. Validate the metadata in xsk_tx_metadata_request() and use the resulting flags snapshot for every feature check. Read request fields once so all zero-copy drivers process only values observed after successful validation. Fixes: ca4419f15a ("xsk: Add launch time hardware offload support to XDP Tx metadata") Cc: Cen Zhang (Microsoft) <blbllhy@gmail.com> Signed-off-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20260727161959.885642-7-sdf@fomichev.me Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2026-08-03 16:43:54 -07:00
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cache.h	libeth: add cacheline / struct layout assertion helpers	2024-07-10 10:29:53 -07:00
rx.h	libeth: support native XDP and register memory model	2025-06-16 11:40:14 -07:00
tx.h	libeth: xsk: add XSk xmit functions	2025-06-16 11:40:15 -07:00
types.h	libeth: xdp: add XDP prog run and verdict result handling	2025-06-16 11:40:14 -07:00
xdp.h	libeth: xdp: Disable generic kCFI pass for libeth_xdp_tx_xmit_bulk()	2025-10-29 20:04:55 -07:00
xsk.h	xsk: validate metadata when processing requests	2026-08-03 16:43:54 -07:00