On Thu, Apr 21, 2022 at 6:55 PM Kees Cook <keescook@xxxxxxxxxxxx> wrote: > > Control Flow Integrity (CFI) instrumentation of the kernel noticed that > the caller, dev_attr_show(), and the callback, odvp_show(), did not have > matching function prototypes, which would cause a CFI exception to be > raised. Correct the prototype by using struct device_attribute instead > of struct kobj_attribute. > > Cc: "Rafael J. Wysocki" <rafael@xxxxxxxxxx> > Cc: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx> > Cc: Amit Kucheria <amitk@xxxxxxxxxx> > Cc: Zhang Rui <rui.zhang@xxxxxxxxx> > Cc: Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx> > Cc: linux-pm@xxxxxxxxxxxxxxx > Reported-and-tested-by: Joao Moreira <joao@xxxxxxxxxxxxxxxxxx> > Link: https://lore.kernel.org/lkml/067ce8bd4c3968054509831fa2347f4f@xxxxxxxxxxxxxxxxxx/ > Fixes: 006f006f1e5c ("thermal/int340x_thermal: Export OEM vendor variables") > Cc: stable@xxxxxxxxxxxxxxx > Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx> Applied as 5.18-rc material, thanks! > --- > drivers/thermal/intel/int340x_thermal/int3400_thermal.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c > index 4954800b9850..d97f496bab9b 100644 > --- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c > +++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c > @@ -68,7 +68,7 @@ static int evaluate_odvp(struct int3400_thermal_priv *priv); > struct odvp_attr { > int odvp; > struct int3400_thermal_priv *priv; > - struct kobj_attribute attr; > + struct device_attribute attr; > }; > > static ssize_t data_vault_read(struct file *file, struct kobject *kobj, > @@ -311,7 +311,7 @@ static int int3400_thermal_get_uuids(struct int3400_thermal_priv *priv) > return result; > } > > -static ssize_t odvp_show(struct kobject *kobj, struct kobj_attribute *attr, > +static ssize_t odvp_show(struct device *dev, struct device_attribute *attr, > char *buf) > { > struct odvp_attr *odvp_attr; > -- > 2.32.0 >
