diff options
| author | Dmitry Vyukov <[email protected]> | 2018-05-11 16:01:35 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2018-05-11 17:28:45 -0700 |
| commit | c9cf87ea6a4725bc586cc5776c3fb6042a264b7d (patch) | |
| tree | 0421706f27a0e1f2364d204405be93ca32cea867 | |
| parent | 1d1c8e5f0d95c2c97f29122741aed7d0dfb2b391 (diff) | |
KASAN: prohibit KASAN+STRUCTLEAK combination
Currently STRUCTLEAK inserts initialization out of live scope of variables
from KASAN point of view. This leads to KASAN false positive reports.
Prohibit this combination for now.
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Dmitry Vyukov <[email protected]>
Acked-by: Kees Cook <[email protected]>
Cc: Fengguang Wu <[email protected]>
Cc: Sergey Senozhatsky <[email protected]>
Cc: Andrey Ryabinin <[email protected]>
Cc: Dennis Zhou <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | arch/Kconfig | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index 8e0d665c8d53..75dd23acf133 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -464,6 +464,10 @@ config GCC_PLUGIN_LATENT_ENTROPY config GCC_PLUGIN_STRUCTLEAK bool "Force initialization of variables containing userspace addresses" depends on GCC_PLUGINS + # Currently STRUCTLEAK inserts initialization out of live scope of + # variables from KASAN point of view. This leads to KASAN false + # positive reports. Prohibit this combination for now. + depends on !KASAN_EXTRA help This plugin zero-initializes any structures containing a __user attribute. This can prevent some classes of information |