Jann Horn 2b150aa2e3 binder: Remove bogus warning on failed same-process transaction ... [ Upstream commit e8b8ae7ce3 ] While binder transactions with the same binder_proc as sender and recipient are forbidden, transactions with the same task_struct as sender and recipient are possible (even though currently there is a weird check in binder_transaction() that rejects them in the target==0 case). Therefore, task_struct identities can't be used to distinguish whether the caller is running in the context of the sender or the recipient. Since I see no easy way to make this WARN_ON() useful and correct, let's just remove it. Fixes: 44d8047f1d ("binder: use standard functions to allocate fds") Reported-by: syzbot+e113a0b970b7b3f394ba@syzkaller.appspotmail.com Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Acked-by: Todd Kjos <tkjos@google.com> Signed-off-by: Jann Horn <jannh@google.com> Link: https://lore.kernel.org/r/20200806165359.2381483-1-jannh@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-10-29 09:57:37 +01:00
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Kconfig	binder: add functions to copy to/from binder buffers	2019-02-12 10:43:57 +01:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
binder.c	binder: Remove bogus warning on failed same-process transaction	2020-10-29 09:57:37 +01:00
binder_alloc.c	binder: Don't use mmput() from shrinker function.	2020-07-29 10:18:41 +02:00
binder_alloc.h	binder: return errors from buffer copy functions	2019-07-01 08:42:47 +02:00
binder_alloc_selftest.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
binder_internal.h	binder: prevent UAF for binderfs devices II	2020-03-12 13:00:17 +01:00
binder_trace.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282	2019-06-05 17:36:37 +02:00
binderfs.c	binderfs: use refcount for binder control devices too	2020-03-25 08:25:50 +01:00