Todd Kjos 5e57d171e2 binder: don't detect sender/target during buffer cleanup ... commit 32e9f56a96 upstream. When freeing txn buffers, binder_transaction_buffer_release() attempts to detect whether the current context is the target by comparing current->group_leader to proc->tsk. This is an unreliable test. Instead explicitly pass an 'is_failure' boolean. Detecting the sender was being used as a way to tell if the transaction failed to be sent. When cleaning up after failing to send a transaction, there is no need to close the fds associated with a BINDER_TYPE_FDA object. Now 'is_failure' can be used to accurately detect this case. Fixes: 44d8047f1d ("binder: use standard functions to allocate fds") Cc: stable <stable@vger.kernel.org> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Todd Kjos <tkjos@google.com> Link: https://lore.kernel.org/r/20211015233811.3532235-1-tkjos@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-11-12 15:05:49 +01:00
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binder.c	binder: don't detect sender/target during buffer cleanup	2021-11-12 15:05:49 +01:00
binder_alloc.c	binder: tell userspace to dump current backtrace when detected oneway spamming	2021-04-10 10:52:04 +02:00
binder_alloc.h	binder: tell userspace to dump current backtrace when detected oneway spamming	2021-04-10 10:52:04 +02:00
binder_alloc_selftest.c	binder: print warnings when detecting oneway spamming.	2020-09-03 18:24:41 +02:00
binder_internal.h	binder: use euid from cred instead of using task	2021-11-12 15:05:48 +01:00
binder_trace.h	binder: add trace at free transaction.	2020-11-11 08:20:44 +01:00
binderfs.c	binderfs: add support for feature files	2021-07-21 13:46:36 +02:00
Kconfig	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00