Date: Sun, 6 Jan 2013 15:10:11 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r245104 - head/sys/kern Message-ID: <201301061510.r06FABnq085646@svn.freebsd.org>
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Author: kib Date: Sun Jan 6 15:10:10 2013 New Revision: 245104 URL: http://svnweb.freebsd.org/changeset/base/245104 Log: Protect the p->p_pgrp dereference with the process lock. MFC after: 3 days Modified: head/sys/kern/kern_exit.c Modified: head/sys/kern/kern_exit.c ============================================================================== --- head/sys/kern/kern_exit.c Sun Jan 6 15:07:19 2013 (r245103) +++ head/sys/kern/kern_exit.c Sun Jan 6 15:10:10 2013 (r245104) @@ -1074,7 +1074,9 @@ kern_wait6(struct thread *td, idtype_t i q = td->td_proc; if ((pid_t)id == WAIT_MYPGRP && (idtype == P_PID || idtype == P_PGID)) { + PROC_LOCK(q); id = (id_t)q->p_pgid; + PROC_UNLOCK(q); idtype = P_PGID; }
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