Module Name:    src
Committed By:   martin
Date:           Wed Jun 21 21:26:16 UTC 2023

Modified Files:
        src/sys/compat/linux32/arch/amd64 [netbsd-8]: linux32_machdep.c
        src/sys/compat/ossaudio [netbsd-8]: ossaudio.c
        src/sys/compat/sunos32 [netbsd-8]: sunos32_misc.c

Log Message:
Pull up following revision(s) (requested by riastradh in ticket #1841):

        sys/compat/sunos32/sunos32_misc.c: revision 1.86
        sys/compat/ossaudio/ossaudio.c: revision 1.85
        sys/compat/linux32/arch/amd64/linux32_machdep.c: revision 1.48

compat_sunos32: Memset zero before copyout.

Unclear if this can leak anything but let's be on the safe side.

compat_ossaudio: Zero-initialize idat before copyout.
Unclear if there are any paths to the copyout without initialization,
but let's play it safe to keep the auditing effort low.

linux32_rt_sendsig: Memset zero before copyout.
Not sure if there's any padding here, but it's a pretty big
structure, fairly likely, so let's be rather safe than sorry.


To generate a diff of this commit:
cvs rdiff -u -r1.38.6.3 -r1.38.6.4 \
    src/sys/compat/linux32/arch/amd64/linux32_machdep.c
cvs rdiff -u -r1.70.6.4 -r1.70.6.5 src/sys/compat/ossaudio/ossaudio.c
cvs rdiff -u -r1.77.10.2 -r1.77.10.3 src/sys/compat/sunos32/sunos32_misc.c

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

Modified files:

Index: src/sys/compat/linux32/arch/amd64/linux32_machdep.c
diff -u src/sys/compat/linux32/arch/amd64/linux32_machdep.c:1.38.6.3 src/sys/compat/linux32/arch/amd64/linux32_machdep.c:1.38.6.4
--- src/sys/compat/linux32/arch/amd64/linux32_machdep.c:1.38.6.3	Wed Jun 21 21:04:03 2023
+++ src/sys/compat/linux32/arch/amd64/linux32_machdep.c	Wed Jun 21 21:26:16 2023
@@ -1,4 +1,4 @@
-/*	$NetBSD: linux32_machdep.c,v 1.38.6.3 2023/06/21 21:04:03 martin Exp $ */
+/*	$NetBSD: linux32_machdep.c,v 1.38.6.4 2023/06/21 21:26:16 martin Exp $ */
 
 /*-
  * Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved.
@@ -31,7 +31,7 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: linux32_machdep.c,v 1.38.6.3 2023/06/21 21:04:03 martin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: linux32_machdep.c,v 1.38.6.4 2023/06/21 21:26:16 martin Exp $");
 
 #include <sys/param.h>
 #include <sys/proc.h>
@@ -191,6 +191,7 @@ linux32_rt_sendsig(const ksiginfo_t *ksi
 	fp--;
 
 	/* Build stack frame for signal trampoline. */
+	memset(&frame, 0, sizeof(frame));
 	NETBSD32PTR32(frame.sf_handler, catcher);
 	frame.sf_sig = native_to_linux32_signo[sig];
 	NETBSD32PTR32(frame.sf_sip, &fp->sf_si);

Index: src/sys/compat/ossaudio/ossaudio.c
diff -u src/sys/compat/ossaudio/ossaudio.c:1.70.6.4 src/sys/compat/ossaudio/ossaudio.c:1.70.6.5
--- src/sys/compat/ossaudio/ossaudio.c:1.70.6.4	Wed Jun 21 21:04:02 2023
+++ src/sys/compat/ossaudio/ossaudio.c	Wed Jun 21 21:26:16 2023
@@ -1,4 +1,4 @@
-/*	$NetBSD: ossaudio.c,v 1.70.6.4 2023/06/21 21:04:02 martin Exp $	*/
+/*	$NetBSD: ossaudio.c,v 1.70.6.5 2023/06/21 21:26:16 martin Exp $	*/
 
 /*-
  * Copyright (c) 1997, 2008 The NetBSD Foundation, Inc.
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ossaudio.c,v 1.70.6.4 2023/06/21 21:04:02 martin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ossaudio.c,v 1.70.6.5 2023/06/21 21:26:16 martin Exp $");
 
 #include <sys/param.h>
 #include <sys/proc.h>
@@ -1041,7 +1041,7 @@ oss_ioctl_mixer(struct lwp *lwp, const s
 	mixer_ctrl_t mc;
 	struct oss_mixer_info omi;
 	struct audio_device adev;
-	int idat;
+	int idat = 0;
 	int i;
 	int error;
 	int l, r, n, e;

Index: src/sys/compat/sunos32/sunos32_misc.c
diff -u src/sys/compat/sunos32/sunos32_misc.c:1.77.10.2 src/sys/compat/sunos32/sunos32_misc.c:1.77.10.3
--- src/sys/compat/sunos32/sunos32_misc.c:1.77.10.2	Wed Jun 21 21:04:03 2023
+++ src/sys/compat/sunos32/sunos32_misc.c	Wed Jun 21 21:26:16 2023
@@ -1,4 +1,4 @@
-/*	$NetBSD: sunos32_misc.c,v 1.77.10.2 2023/06/21 21:04:03 martin Exp $	*/
+/*	$NetBSD: sunos32_misc.c,v 1.77.10.3 2023/06/21 21:26:16 martin Exp $	*/
 /* from :NetBSD: sunos_misc.c,v 1.107 2000/12/01 19:25:10 jdolecek Exp	*/
 
 /*
@@ -77,7 +77,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: sunos32_misc.c,v 1.77.10.2 2023/06/21 21:04:03 martin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: sunos32_misc.c,v 1.77.10.3 2023/06/21 21:26:16 martin Exp $");
 
 #define COMPAT_SUNOS 1
 
@@ -242,6 +242,7 @@ static inline void sunos32_from___stat13
 static inline void
 sunos32_from___stat13(struct stat *sbp, struct netbsd32_stat43 *sb32p)
 {
+	memset(sb32p, 0, sizeof(*sb32p));
 	sb32p->st_dev = sbp->st_dev;
 	sb32p->st_ino = sbp->st_ino;
 	sb32p->st_mode = sbp->st_mode;

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