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authorKees Cook <keescook@chromium.org>2021-06-17 00:48:19 +0300
committerKees Cook <keescook@chromium.org>2022-02-14 03:50:06 +0300
commit938a000e3f9bead24ea753286b3e4d2423275c9e (patch)
treef3cdcabaea66b2f14b5488b6180cf552814b5aec /arch/x86/boot
parentf68f2ff91512c199ec24883001245912afc17873 (diff)
fortify: Detect struct member overflows in memmove() at compile-time
As done for memcpy(), also update memmove() to use the same tightened compile-time checks under CONFIG_FORTIFY_SOURCE. Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'arch/x86/boot')
-rw-r--r--arch/x86/boot/compressed/misc.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index a4339cb2d247..1cdcaf34ee36 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -37,10 +37,11 @@
* try to define their own functions if these are not defined as macros.
*/
#define memzero(s, n) memset((s), 0, (n))
+#ifndef memmove
#define memmove memmove
-
/* Functions used by the included decompressor code below. */
void *memmove(void *dest, const void *src, size_t n);
+#endif
/*
* This is set up by the setup-routine at boot-time