Eric DumazetandGreg Kroah-Hartman c572d3a920 af_packet: avoid a false positive warning in packet_setsockopt() ...

[ Upstream commit 86d43e2bf9 ]

Although the code is correct, the following line

	copy_from_sockptr(&req_u.req, optval, len));

triggers this warning :

memcpy: detected field-spanning write (size 28) of single field "dst" at include/linux/sockptr.h:49 (size 16)

Refactor the code to be more explicit.

Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Willem de Bruijn <willemdebruijn.kernel@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-06-27 13:49:01 +02:00

..

af_packet.c

af_packet: avoid a false positive warning in packet_setsockopt()

2024-06-27 13:49:01 +02:00

diag.c

af_packet: Fix data-races of pkt_sk(sk)->num.

2023-05-25 21:03:23 -07:00

internal.h

packet: Move reference count in packet_sock to atomic_long_t

2023-12-13 18:45:23 +01:00

Kconfig

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Makefile

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