On Sat, Jul 20, 2019 at 09:41:05AM +0100, Luis Henriques wrote: > [ 39.801179] > ================================================================== > [ 39.801973] BUG: KASAN: use-after-free in rwsem_down_write_slowpath > (/home/miguel/kernel/linux/kernel/locking/rwsem.c:669 > /home/miguel/kernel/linux/kernel/locking/rwsem.c:1125)
That's rwsem_can_spin_on_owner(), specifically line 669 seems to suggest owner_on_cpu(). So we'd somehow have a dead owner; I'm not immediately seeing how that can happen.
