Date: Wed, 28 Nov 2018 17:40:09 +0000 (UTC) From: Mark Johnston <markj@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-releng@freebsd.org Subject: svn commit: r341157 - releng/12.0/sys/kern Message-ID: <201811281740.wASHe9os015320@repo.freebsd.org>
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Author: markj Date: Wed Nov 28 17:40:08 2018 New Revision: 341157 URL: https://svnweb.freebsd.org/changeset/base/341157 Log: MFstable/12 r341077: Lock the knlist before releasing the in-flux state in knote_fork(). PR: 228858 Approved by: re (gjb) Modified: releng/12.0/sys/kern/kern_event.c Directory Properties: releng/12.0/ (props changed) Modified: releng/12.0/sys/kern/kern_event.c ============================================================================== --- releng/12.0/sys/kern/kern_event.c Wed Nov 28 17:37:17 2018 (r341156) +++ releng/12.0/sys/kern/kern_event.c Wed Nov 28 17:40:08 2018 (r341157) @@ -603,10 +603,10 @@ knote_fork(struct knlist *list, int pid) kn->kn_fflags |= NOTE_TRACKERR; if (kn->kn_fop->f_event(kn, NOTE_FORK)) KNOTE_ACTIVATE(kn, 0); + list->kl_lock(list->kl_lockarg); KQ_LOCK(kq); kn_leave_flux(kn); KQ_UNLOCK_FLUX(kq); - list->kl_lock(list->kl_lockarg); } list->kl_unlock(list->kl_lockarg); }
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