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| author | kib <kib@FreeBSD.org> | 2013-01-06 15:10:10 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2013-01-06 15:10:10 +0000 |
| commit | 69c365794c93320ef1fc4a2b569b4cbee62d53a0 (patch) | |
| tree | 47395b94b0330be0494317c7bbcf55096503facc | |
| parent | 184da5d83da91fd08fa89f0ea9c2453c3cdf98b7 (diff) | |
| download | FreeBSD-src-69c365794c93320ef1fc4a2b569b4cbee62d53a0.zip FreeBSD-src-69c365794c93320ef1fc4a2b569b4cbee62d53a0.tar.gz | |
Protect the p->p_pgrp dereference with the process lock.
MFC after: 3 days
| -rw-r--r-- | sys/kern/kern_exit.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/kern/kern_exit.c b/sys/kern/kern_exit.c index 3dd6521..50b47fb 100644 --- a/sys/kern/kern_exit.c +++ b/sys/kern/kern_exit.c @@ -1074,7 +1074,9 @@ kern_wait6(struct thread *td, idtype_t idtype, id_t id, int *status, 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; } |
