github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-08 14:42:37 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

FROMLIST: binder: fix memory corruption in binder_transaction binder

Browse Source 
(from https://patchwork.kernel.org/patch/9939405/)

commit 7a4408c6bd ("binder: make sure accesses to proc/thread are
safe") made a change to enqueue tcomplete to thread->todo before
enqueuing the transaction. However, in err_dead_proc_or_thread case,
the tcomplete is directly freed, without dequeued. It may cause the
thread->todo list to be corrupted.

So, dequeue it before freeing.

Bug: 65333488
Change-Id: Id063a4db18deaa634f4d44aa6ebca47bea32537a
Signed-off-by: Xu YiPing <xuyiping@hisilicon.com>
Signed-off-by: Todd Kjos <tkjos@google.com>
This commit is contained in:
Xu YiPing 2017-05-22 11:26:23 -07:00 committed by Amit Pundir
parent 7530f3548d
commit 52d7f79173
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/android/binder.c
View File

@ -3253,6 +3253,7 @@ static void binder_transaction(struct binder_proc *proc,
err_dead_proc_or_thread:
return_error = BR_DEAD_REPLY;
return_error_line = __LINE__;
binder_dequeue_work(proc, tcomplete);
err_translate_failed:
err_bad_object_type:
err_bad_offset: