commit 42316941335644a98335f209daafa4c122f28983 upstream.
The type defined for the BINDER_SET_MAX_THREADS ioctl was changed from
size_t to __u32 in order to avoid incompatibility issues between 32 and
64-bit kernels. However, the internal types used to copy from user and
store the value were never updated. Use u32 to fix the inconsistency.
Fixes: a9350fc859ae ("staging: android: binder: fix BINDER_SET_MAX_THREADS declaration")
Reported-by: Arve Hjønnevåg <arve@xxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Carlos Llamas <cmllamas@xxxxxxxxxx>
Reviewed-by: Alice Ryhl <aliceryhl@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20240421173750.3117808-1-cmllamas@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
[cmllamas: resolve minor conflicts due to missing commit 421518a2740f]
Signed-off-by: Carlos Llamas <cmllamas@xxxxxxxxxx>
---
drivers/android/binder.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 0fe56dcdf441..a53d7f9458ff 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -480,7 +480,7 @@ struct binder_proc {
struct list_head todo;
struct binder_stats stats;
struct list_head delivered_death;
- int max_threads;
+ u32 max_threads;
int requested_threads;
int requested_threads_started;
int tmp_ref;
@@ -5412,7 +5412,7 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
goto err;
break;
case BINDER_SET_MAX_THREADS: {
- int max_threads;
+ u32 max_threads;
if (copy_from_user(&max_threads, ubuf,
sizeof(max_threads))) {
--
2.45.1.288.g0e0cd299f1-goog
