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author | Kees Cook <keescook@chromium.org> | 2021-11-20 16:31:49 -0800 |
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committer | David S. Miller <davem@davemloft.net> | 2021-11-22 15:13:54 +0000 |
commit | ca62f7fd0347e81d269d8233cb0dc805168f7083 (patch) | |
tree | a12d2e5d8db5e44b4344dd3e949940f3ee84db87 /drivers/net/wireguard/queueing.c | |
parent | e295886bcbaef6f7e4740d16d12d9f6b72908226 (diff) | |
download | wireguard-linux-trimmed-ca62f7fd0347e81d269d8233cb0dc805168f7083.tar.gz wireguard-linux-trimmed-ca62f7fd0347e81d269d8233cb0dc805168f7083.zip |
skbuff: Switch structure bounds to struct_group()
In preparation for FORTIFY_SOURCE performing compile-time and run-time
field bounds checking for memcpy(), memmove(), and memset(), avoid
intentionally writing across neighboring fields.
Replace the existing empty member position markers "headers_start" and
"headers_end" with a struct_group(). This will allow memcpy() and sizeof()
to more easily reason about sizes, and improve readability.
"pahole" shows no size nor member offset changes to struct sk_buff.
"objdump -d" shows no object code changes (outside of WARNs affected by
source line number changes).
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com> # drivers/net/wireguard/*
Link: https://lore.kernel.org/lkml/20210728035006.GD35706@embeddedor
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/wireguard/queueing.c')
0 files changed, 0 insertions, 0 deletions