Le 26/08/2022 à 17:07, Alexander Potapenko a écrit : > Use hooks from instrumented.h to notify bug detection tools about > usercopy events in variations of get_user() and put_user(). > > Signed-off-by: Alexander Potapenko <glider@xxxxxxxxxx> > --- > v5: > -- handle put_user(), make sure to not evaluate pointer/value twice > > Link: https://linux-review.googlesource.com/id/Ia9f12bfe5832623250e20f1859fdf5cc485a2fce > --- > arch/x86/include/asm/uaccess.h | 22 +++++++++++++++------- > 1 file changed, 15 insertions(+), 7 deletions(-) > > diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h > index 913e593a3b45f..c1b8982899eca 100644 > --- a/arch/x86/include/asm/uaccess.h > +++ b/arch/x86/include/asm/uaccess.h > @@ -5,6 +5,7 @@ > * User space memory access functions > */ > #include <linux/compiler.h> > +#include <linux/instrumented.h> > #include <linux/kasan-checks.h> > #include <linux/string.h> > #include <asm/asm.h> > @@ -103,6 +104,7 @@ extern int __get_user_bad(void); > : "=a" (__ret_gu), "=r" (__val_gu), \ > ASM_CALL_CONSTRAINT \ > : "0" (ptr), "i" (sizeof(*(ptr)))); \ > + instrument_get_user(__val_gu); \ Where is that instrument_get_user() defined ? I can't find it neither in v6.0-rc3 nor in linux-next. > (x) = (__force __typeof__(*(ptr))) __val_gu; \ > __builtin_expect(__ret_gu, 0); \ > }) Christophe
