This is a note to let you know that I've just added the patch titled binder: fix sender_euid type in uapi header to the 5.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: binder-fix-sender_euid-type-in-uapi-header.patch and it can be found in the queue-5.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 8cc5b032240ae5220b62c689c20459d3e1825b2d Mon Sep 17 00:00:00 2001 From: Carlos Llamas <cmllamas@xxxxxxxxxx> Date: Wed, 1 Jun 2022 01:00:17 +0000 Subject: binder: fix sender_euid type in uapi header From: Carlos Llamas <cmllamas@xxxxxxxxxx> commit 8cc5b032240ae5220b62c689c20459d3e1825b2d upstream. The {pid,uid}_t fields of struct binder_transaction were recently replaced to use kernel types in commit 169adc2b6b3c ("android/binder.h: add linux/android/binder(fs).h to UAPI compile-test coverage"). However, using __kernel_uid_t here breaks backwards compatibility in architectures using 16-bits for this type, since glibc and some others still expect a 32-bit uid_t. Instead, let's use __kernel_uid32_t which avoids this compatibility problem. Fixes: 169adc2b6b3c ("android/binder.h: add linux/android/binder(fs).h to UAPI compile-test coverage") Reported-by: Christopher Ferris <cferris@xxxxxxxxxx> Signed-off-by: Carlos Llamas <cmllamas@xxxxxxxxxx> Acked-by: Todd Kjos <tkjos@xxxxxxxxxx> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- include/uapi/linux/android/binder.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/include/uapi/linux/android/binder.h +++ b/include/uapi/linux/android/binder.h @@ -289,7 +289,7 @@ struct binder_transaction_data { /* General information about the transaction. */ __u32 flags; __kernel_pid_t sender_pid; - __kernel_uid_t sender_euid; + __kernel_uid32_t sender_euid; binder_size_t data_size; /* number of bytes of data */ binder_size_t offsets_size; /* number of bytes of offsets */ Patches currently in stable-queue which might be from cmllamas@xxxxxxxxxx are queue-5.18/binder-fix-sender_euid-type-in-uapi-header.patch