kern_exec.c.diff

cvs -q diff -u -a -p kern_exec.c
Index: kern_exec.c
===================================================================
RCS file: /src/cvs/cvsroot-netbsd/src/sys/kern/kern_exec.c,v
retrieving revision 1.506
diff -u -a -p -r1.506 kern_exec.c
--- kern_exec.c	11 Jun 2021 12:54:22 -0000	1.506
+++ kern_exec.c	28 Sep 2021 03:56:37 -0000
@@ -87,6 +87,7 @@ __KERNEL_RCSID(0, "$NetBSD: kern_exec.c,
 #include <sys/acct.h>
 #include <sys/atomic.h>
 #include <sys/exec.h>
+#include <sys/futex.h>
 #include <sys/ktrace.h>
 #include <sys/uidinfo.h>
 #include <sys/wait.h>
@@ -1204,6 +1205,12 @@ execve_runproc(struct lwp *l, struct exe
 	}
 	KDASSERT(p->p_nlwps == 1);
 
+	/* release futexes */
+	if (__predict_false(l->l_robust_head != 0)) {
+		futex_release_all_lwp(l, l->l_lid);
+		l->l_robust_head = 0;
+	}
+
 	/* Destroy any lwpctl info. */
 	if (p->p_lwpctl != NULL)
 		lwp_ctl_exit();