in sbsavetimestamp(), initialize struct timeval to 0 with memset() so that
the implicit padding is initialized. this avoids later copying uninitialized memory out to user space. detected by KMSAN.
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@ -1,4 +1,4 @@
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/* $NetBSD: uipc_socket.c,v 1.294 2020/12/11 03:00:09 thorpej Exp $ */
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/* $NetBSD: uipc_socket.c,v 1.295 2021/08/03 20:27:08 chs Exp $ */
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/*
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/*
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* Copyright (c) 2002, 2007, 2008, 2009 The NetBSD Foundation, Inc.
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* Copyright (c) 2002, 2007, 2008, 2009 The NetBSD Foundation, Inc.
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@ -71,7 +71,7 @@
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*/
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*/
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#include <sys/cdefs.h>
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: uipc_socket.c,v 1.294 2020/12/11 03:00:09 thorpej Exp $");
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__KERNEL_RCSID(0, "$NetBSD: uipc_socket.c,v 1.295 2021/08/03 20:27:08 chs Exp $");
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#ifdef _KERNEL_OPT
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#ifdef _KERNEL_OPT
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#include "opt_compat_netbsd.h"
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#include "opt_compat_netbsd.h"
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@ -2432,6 +2432,7 @@ sbsavetimestamp(int opt, struct mbuf **mp)
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struct timeval tv;
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struct timeval tv;
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int error;
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int error;
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memset(&tv, 0, sizeof(tv));
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microtime(&tv);
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microtime(&tv);
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MODULE_HOOK_CALL(uipc_socket_50_sbts_hook, (opt, &mp), enosys(), error);
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MODULE_HOOK_CALL(uipc_socket_50_sbts_hook, (opt, &mp), enosys(), error);
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