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| author |   Xu YiPing <xuyiping@hisilicon.com> | 2017-09-05 10:21:52 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-09-18 16:06:00 +0200 |
| commit | d53bebdf4d779497b29e1aad26e19cac1d446f42 (patch) | |
| tree | 1cb59a7d0c0f4dc4d59536e5c75ccdc1f9f390d6 /drivers/android | |
| parent | binder: fix an ret value override (diff) | |
| download | linux-dev-d53bebdf4d779497b29e1aad26e19cac1d446f42.tar.xz linux-dev-d53bebdf4d779497b29e1aad26e19cac1d446f42.zip | |
binder: fix memory corruption in binder_transaction binder
commit 7a4408c6bd3e ("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.
Fixes: 7a4408c6bd3e ("binder: make sure accesses to proc/thread are safe")
Signed-off-by: Xu YiPing <xuyiping@hisilicon.com>
Signed-off-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/android')
| -rw-r--r-- | drivers/android/binder.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/android/binder.c b/drivers/android/binder.c index b257bb0e2cfe..ab34239a76ee 100644 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@ -3082,6 +3082,7 @@ 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: |