From: bluhm <bluhm@openbsd.org>
Date: Sun, 9 Jul 2023 09:33:30 +0000 (+0000)
Subject: Allocate enough memory to pervent SIGSEGV or SIGABRT due to write
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=63cd6ed3906b495e90f1710ea58c012bc61429dc;p=openbsd

Allocate enough memory to pervent SIGSEGV or SIGABRT due to write
after free.  There was confusion between size of struct and size
of pointer.
---

diff --git a/regress/sys/kern/unixsockets/unsendrecvthr.c b/regress/sys/kern/unixsockets/unsendrecvthr.c
index 9a4f3628755..e224937129a 100644
--- a/regress/sys/kern/unixsockets/unsendrecvthr.c
+++ b/regress/sys/kern/unixsockets/unsendrecvthr.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: unsendrecvthr.c,v 1.1 2021/12/09 23:37:18 mvs Exp $ */
+/* $OpenBSD: unsendrecvthr.c,v 1.2 2023/07/09 09:33:30 bluhm Exp $ */
 
 /*
  * Copyright (c) 2021 Vitaliy Makkoveev <mvs@openbsd.org>
@@ -180,7 +180,7 @@ main(int argc, char *argv[])
 		err(1, "socketpair");
 
 	for (i = 0; i < 2; ++i) {
-		if (!(rx_data[i] = calloc(ncpu, sizeof(*rx_data))))
+		if (!(rx_data[i] = calloc(ncpu, sizeof(struct rx_data))))
 			err(1, "calloc");
 
 		for (j = 0; j < ncpu; ++j)
@@ -194,7 +194,7 @@ main(int argc, char *argv[])
 	}
 
 	for (i = 0; i < 2; ++i) {
-		if (!(tx_args[i] = calloc(ncpu, sizeof(*tx_args))))
+		if (!(tx_args[i] = calloc(ncpu, sizeof(struct thr_tx_arg))))
 			err(1, "calloc");
 
 		for (j = 0; j < ncpu; ++j) {