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| author | Kees Cook <keescook@chromium.org> | 2018-02-22 09:41:40 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-02-22 09:43:47 -0800 |
| commit | 28128c61e08eaeced9cc8ec0e6b5d677b5b94690 (patch) | |
| tree | 9d27b7a5c6b1f9dd8a415a136b0ffef6e49c52e4 /include | |
| parent | b21ebf2fb4cde1618915a97cc773e287ff49173e (diff) | |
| download | linux-28128c61e08eaeced9cc8ec0e6b5d677b5b94690.tar.gz | |
kconfig.h: Include compiler types to avoid missed struct attributes
The header files for some structures could get included in such a way
that struct attributes (specifically __randomize_layout from path.h) would
be parsed as variable names instead of attributes. This could lead to
some instances of a structure being unrandomized, causing nasty GPFs, etc.
This patch makes sure the compiler_types.h header is included in
kconfig.h so that we've always got types and struct attributes defined,
since kconfig.h is included from the compiler command line.
Reported-by: Patrick McLean <chutzpah@gentoo.org>
Root-caused-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Tested-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Fixes: 3859a271a003 ("randstruct: Mark various structs for randomization")
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/kconfig.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/kconfig.h b/include/linux/kconfig.h index fec5076eda91..c5fd4ee776ba 100644 --- a/include/linux/kconfig.h +++ b/include/linux/kconfig.h @@ -64,4 +64,7 @@ */ #define IS_ENABLED(option) __or(IS_BUILTIN(option), IS_MODULE(option)) +/* Make sure we always have all types and struct attributes defined. */ +#include <linux/compiler_types.h> + #endif /* __LINUX_KCONFIG_H */ |