ANDROID: sdcardfs: Change current->fs under lock

bug: 111641492

Issue: SEC-1475
Change-Id: I79e9894f94880048edaf0f7cfa2d180f65cbcf3b
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: Daniel Rosenberg <drosen@google.com>
(cherry picked from commit 5eb1f41bfbfea7dde6d8c7bfca7da2193392c8fd)
1 file changed