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authorTodd Kjos <tkjos@google.com>2021-11-12 10:07:20 -0800
committerTodd Kjos <tkjos@google.com>2021-11-22 10:10:17 -0800
commit490b9a7c8593e192bd32fed50381a67bfae2936a (patch)
tree453ce9d1dfb745064a0024cc0fd40bdcb3b19c9f
parente53087842d2ec539e2f6d794027c601f1932a3f6 (diff)
FROMGIT: binder: fix test regression due to sender_euid change
This is a partial revert of commit 29bc22ac5e5b ("binder: use euid from cred instead of using task"). Setting sender_euid using proc->cred caused some Android system test regressions that need further investigation. It is a partial reversion because subsequent patches rely on proc->cred. Fixes: 29bc22ac5e5b ("binder: use euid from cred instead of using task") Cc: stable@vger.kernel.org # 4.4+ Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Todd Kjos <tkjos@google.com> Change-Id: I9b1769a3510fed250bb21859ef8beebabe034c66 Link: https://lore.kernel.org/r/20211112180720.2858135-1-tkjos@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Bug: 200688826 (cherry picked from commit c21a80ca0684ec2910344d72556c816cb8940c01 git: //git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git char-misc-linus) Signed-off-by: Todd Kjos <tkjos@google.com>
-rw-r--r--drivers/android/binder.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 038c0b8fc836..ace25ef67098 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -3118,7 +3118,7 @@ static void binder_transaction(struct binder_proc *proc,
t->from = thread;
else
t->from = NULL;
- t->sender_euid = proc->cred->euid;
+ t->sender_euid = task_euid(proc->tsk);
t->to_proc = target_proc;
t->to_thread = target_thread;
t->code = tr->code;