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authorKees Cook <keescook@chromium.org>2022-04-21 09:55:04 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-05-09 09:16:30 +0200
commitabcffdd9d5ef83a07d418651f59a6f34a3b3c8cf (patch)
treebc92053a1d8ff53768f54b726b73f5e8c8a392e0
parentb3b0ca1c324982fcc005063af045439670e16aa3 (diff)
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thermal: int340x: Fix attr.show callback prototype
commit d0f6cfb2bd165b0aa307750e07e03420859bd554 upstream. 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. Reported-and-tested-by: Joao Moreira <joao@overdrivepizza.com> Link: https://lore.kernel.org/lkml/067ce8bd4c3968054509831fa2347f4f@overdrivepizza.com/ Fixes: 006f006f1e5c ("thermal/int340x_thermal: Export OEM vendor variables") Cc: 5.8+ <stable@vger.kernel.org> # 5.8+ Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/thermal/intel/int340x_thermal/int3400_thermal.c4
1 files 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 a0b599100106..ba7eab0c62d4 100644
--- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
+++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
@@ -67,7 +67,7 @@ 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,
@@ -271,7 +271,7 @@ static int int3400_thermal_run_osc(acpi_handle handle,
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;