diff options
| author | Martijn Coenen <maco@android.com> | 2017-07-28 13:56:08 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-08-23 03:42:57 +0200 |
| commit | b2a6d1b999a4c13e5997bb864694e77172d45250 (patch) | |
| tree | 69e739bfed365dd447dcd7fcb00aa72fa7d4b076 | |
| parent | Linux 4.13-rc5 (diff) | |
| download | linux-b2a6d1b999a4c13e5997bb864694e77172d45250.tar.xz linux-b2a6d1b999a4c13e5997bb864694e77172d45250.zip | |
ANDROID: binder: fix proc->tsk check.
Commit c4ea41ba195d ("binder: use group leader instead of open thread")'
was incomplete and didn't update a check in binder_mmap(), causing all
mmap() calls into the binder driver to fail.
Signed-off-by: Martijn Coenen <maco@android.com>
Tested-by: John Stultz <john.stultz@linaro.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/android/binder.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/android/binder.c b/drivers/android/binder.c index f7665c31feca..831cdd7d197d 100644 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@ -3362,7 +3362,7 @@ static int binder_mmap(struct file *filp, struct vm_area_struct *vma) const char *failure_string; struct binder_buffer *buffer; - if (proc->tsk != current) + if (proc->tsk != current->group_leader) return -EINVAL; if ((vma->vm_end - vma->vm_start) > SZ_4M) |