Messages in this thread Patch in this message | | | From | Kees Cook <> | Subject | [PATCH v4 13/14] rxrpc: Prepare to remove VLA usage for SKCIPHER_REQUEST_ON_STACK | Date | Wed, 11 Jul 2018 13:36:18 -0700 |
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Two uses of SKCIPHER_REQUEST_ON_STACK() will trigger FRAME_WARN warnings (when less than 2048) once the VLA is no longer hidden from the check:
net/rxrpc/rxkad.c:398:1: warning: the frame size of 1152 bytes is larger than 1024 bytes [-Wframe-larger-than=] net/rxrpc/rxkad.c:242:1: warning: the frame size of 1152 bytes is larger than 1024 bytes [-Wframe-larger-than=]
This bumps the affected objects by 20% to silence the warnings while still providing coverage is anything grows even more.
Signed-off-by: Kees Cook <keescook@chromium.org> --- net/rxrpc/Makefile | 1 + 1 file changed, 1 insertion(+)
diff --git a/net/rxrpc/Makefile b/net/rxrpc/Makefile index 6ffb7e9887ce..53e1177129e6 100644 --- a/net/rxrpc/Makefile +++ b/net/rxrpc/Makefile @@ -32,4 +32,5 @@ rxrpc-y := \ rxrpc-$(CONFIG_PROC_FS) += proc.o rxrpc-$(CONFIG_RXKAD) += rxkad.o +CFLAGS_rxkad.o += $(FRAME_WARN_BUMP_FLAG) rxrpc-$(CONFIG_SYSCTL) += sysctl.o -- 2.17.1
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