Source-Changes-D archive

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]

Re: CVS commit: src/sys/kern

Le 01/10/2019 à 18:36, Chuck Silvers a écrit :
Module Name:	src
Committed By:	chs
Date:		Tue Oct  1 16:36:58 UTC 2019

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

Log Message:
in shmdt(), wait until shmat() completes before detaching.


To generate a diff of this commit:
cvs rdiff -u -r1.138 -r1.139 src/sys/kern/sysv_shm.c

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

Looks like this line is missing

diff --git a/sys/kern/sysv_shm.c b/sys/kern/sysv_shm.c
index b090d1bc4262..c52cb65ec768 100644
--- a/sys/kern/sysv_shm.c
+++ b/sys/kern/sysv_shm.c
@@ -259,6 +259,7 @@ shmmap_getprivate(struct proc *p)
 		shmmap_se = kmem_alloc(sizeof(struct shmmap_entry), KM_SLEEP);
 		shmmap_se->va = oshmmap_se->va;
 		shmmap_se->shmid = oshmmap_se->shmid;
+		shmmap_se->busy = oshmmap_se->busy;
 		SLIST_INSERT_HEAD(&shmmap_s->entries, shmmap_se, next);
 	shmmap_s->nitems = oshmmap_s->nitems;

The access made from the caller is not initialized

353 	if (shmmap_se->busy) {

Home | Main Index | Thread Index | Old Index