Commit b2a6d1b9 authored Jul 28, 2017 by Martijn Coenen Committed by Greg Kroah-Hartman Aug 22, 2017

ANDROID: binder: fix proc->tsk check.



Commit c4ea41ba ("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>

parent ef954844

drivers/android/binder.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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)