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net: dccp: Use memset_startat() for TP zeroing
authorKees Cook <keescook@chromium.org>
Thu, 18 Nov 2021 20:30:19 +0000 (12:30 -0800)
committerDavid S. Miller <davem@davemloft.net>
Fri, 19 Nov 2021 11:22:49 +0000 (11:22 +0000)
commitf5455a1d9d499e4028b8ae8370758efad00b00e9
tree6afa3f45ae56e88d7b44b48c77f9316c87719a7ftree | snapshot
parent92e888bc6f1b84cb4dee23d768777362221be1d4commit | diff
net: dccp: Use memset_startat() for TP zeroing

In preparation for FORTIFY_SOURCE performing compile-time and run-time
field bounds checking for memset(), avoid intentionally writing across
neighboring fields.

Use memset_startat() so memset() doesn't get confused about writing
beyond the destination member that is intended to be the starting point
of zeroing through the end of the struct.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/dccp/trace.h diff | blob | history
Domain: System / Kernel;