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
