summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--sys/kern/kern_exec.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/kern/kern_exec.c b/sys/kern/kern_exec.c
index de6897a..d4aab82 100644
--- a/sys/kern/kern_exec.c
+++ b/sys/kern/kern_exec.c
@@ -487,7 +487,9 @@ interpret:
}
/* close files on exec */
+ VOP_UNLOCK(imgp->vp, 0, td);
fdcloseexec(td);
+ vn_lock(imgp->vp, LK_EXCLUSIVE | LK_RETRY, td);
/* Get a reference to the vnode prior to locking the proc */
VREF(ndp->ni_vp);
@@ -582,7 +584,9 @@ interpret:
*/
PROC_UNLOCK(p);
setugidsafety(td);
+ VOP_UNLOCK(imgp->vp, 0, td);
error = fdcheckstd(td);
+ vn_lock(imgp->vp, LK_EXCLUSIVE | LK_RETRY, td);
if (error != 0)
goto done1;
PROC_LOCK(p);
@@ -714,6 +718,7 @@ done1:
crfree(oldcred);
else
crfree(newcred);
+ VOP_UNLOCK(imgp->vp, 0, td);
/*
* Handle deferred decrement of ref counts.
*/
@@ -732,6 +737,7 @@ done1:
if (tracecred != NULL)
crfree(tracecred);
#endif
+ vn_lock(imgp->vp, LK_EXCLUSIVE | LK_RETRY, td);
if (oldargs != NULL)
pargs_drop(oldargs);
if (newargs != NULL)
OpenPOWER on IntegriCloud