CVS commit: src/sys/kern

["Andrew Doran" <ad%netbsd.org@localhost>]

Module Name:    src
Committed By:   ad
Date:           Tue May 12 21:24:30 UTC 2020

Modified Files:
        src/sys/kern: kern_mutex.c

Log Message:
PR kern/55251: use of ZFS may trigger kernel memory corruption

mutex_vector_enter(): reload mtx_owner with preemption disabled before
calling mutex_oncpu(), otherwise lwp_dtor() can intervene.


To generate a diff of this commit:
cvs rdiff -u -r1.90 -r1.91 src/sys/kern/kern_mutex.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.