zfsonlinux/zfs — pull request #2162 by dweeezil (2014-03-05 13:30:27+00:00)
Title: illumos 4088 - use after free in arc_release()

4088 use after free in arc_release()
Reviewed by: Matthew Ahrens
Reviewed by: Garrett D'Amore
Reviewed by: Saso Kiselkov
Approved by: Dan McDonald
Ported by: Tim Chase

From the illumos issue:

A race-induced use after free occurs in arc_release() where the ARC header
is used outside the critical section protected by the hash_lock.