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FROMGIT: binder: fix test regression due to sender_euid change

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This is a partial revert of commit
29bc22ac5e ("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: 29bc22ac5e ("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 c21a80ca06
git: //git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git char-misc-linus)
Signed-off-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Todd Kjos
2021-11-12 10:07:20 -08:00
committed by Chris
parent ece7cd8013
commit be46c01362
1 changed files with 1 additions and 1 deletions
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2
drivers/android/binder.c
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@@ -3141,7 +3141,7 @@ 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;