Kal Conley b8f83d5ae1 xsk: Fix unaligned descriptor validation ... [ Upstream commit d769ccaf95 ] Make sure unaligned descriptors that straddle the end of the UMEM are considered invalid. Currently, descriptor validation is broken for zero-copy mode which only checks descriptors at page granularity. For example, descriptors in zero-copy mode that overrun the end of the UMEM but not a page boundary are (incorrectly) considered valid. The UMEM boundary check needs to happen before the page boundary and contiguity checks in xp_desc_crosses_non_contig_pg(). Do this check in xp_unaligned_validate_desc() instead like xp_check_unaligned() already does. Fixes: 2b43470add ("xsk: Introduce AF_XDP buffer allocation API") Signed-off-by: Kal Conley <kal.conley@dectris.com> Acked-by: Magnus Karlsson <magnus.karlsson@intel.com> Link: https://lore.kernel.org/r/20230405235920.7305-2-kal.conley@dectris.com Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-05-11 23:17:16 +09:00
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Kconfig	…
Makefile	…
xdp_umem.c	xsk: Add missing overflow check in xdp_umem_reg	2023-03-16 16:02:55 +01:00
xdp_umem.h	…
xsk.c	xsk: add linux/vmalloc.h to xsk.c	2023-02-21 09:00:09 -08:00
xsk.h	…
xsk_buff_pool.c	xsk: add usage of XDP features flags	2023-02-02 20:48:23 -08:00
xsk_diag.c	…
xsk_queue.c	xsk: support use vaddr as ring	2023-02-20 08:22:12 +00:00
xsk_queue.h	xsk: Fix unaligned descriptor validation	2023-05-11 23:17:16 +09:00
xskmap.c	bpf: return long from bpf_map_ops funcs	2023-05-11 23:17:13 +09:00