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authormartin <martin@NetBSD.org>2022-08-03 11:11:31 +0000
committermartin <martin@NetBSD.org>2022-08-03 11:11:31 +0000
commitc0cbb295300c06ff7945a8867c3b48a4e30dcb6c (patch)
tree469ab5d104a53979d171771f7497c81e40af2693 /sys/compat/common/kern_time_50.c
parent8644187dad7b54af091a9162382bb0b561d53fbc (diff)
Pull up following revision(s), all via patch
(requested by riastradh in ticket #1487): sys/compat/linux/arch/i386/linux_machdep.c: revision 1.168 sys/compat/sunos/sunos_misc.c: revision 1.177 sys/compat/netbsd32/netbsd32_compat_50.c: revision 1.52 sys/compat/common/kern_resource_43.c: revision 1.23 sys/compat/netbsd32/netbsd32_conv.h: revision 1.46 sys/compat/linux/arch/i386/linux_ptrace.c: revision 1.35 sys/compat/common/vfs_syscalls_12.c: revision 1.38 sys/compat/ultrix/ultrix_misc.c: revision 1.126 sys/compat/common/kern_sig_43.c: revision 1.37 sys/compat/linux/common/linux_mtio.c: revision 1.8 sys/compat/freebsd/freebsd_misc.c: revision 1.34 sys/compat/freebsd/freebsd_machdep.c: revision 1.5 sys/compat/linux/common/linux_olduname.c: revision 1.67 sys/compat/linux/arch/mips/linux_machdep.c: revision 1.44 sys/compat/freebsd/freebsd_sched.c: revision 1.23 sys/compat/ossaudio/ossaudio.c: revision 1.84 sys/compat/sys/time_types.h: revision 1.6 sys/compat/linux/arch/powerpc/linux_machdep.c: revision 1.51 sys/compat/common/ieee80211_20.c: revision 1.7 sys/compat/linux/common/linux_file.c: revision 1.119 sys/compat/linux/arch/arm/linux_machdep.c: revision 1.34 sys/compat/netbsd32/netbsd32_wait.c: revision 1.25 sys/compat/linux32/common/linux32_time.c: revision 1.38 sys/compat/linux/arch/powerpc/linux_ptrace.c: revision 1.33 sys/compat/linux/arch/alpha/linux_machdep.c: revision 1.52 sys/compat/linux32/arch/amd64/linux32_machdep.c: revision 1.46 sys/compat/netbsd32/netbsd32_compat_12.c: revision 1.36 sys/compat/ultrix/ultrix_ioctl.c: revision 1.39 sys/compat/linux/common/linux_misc.c: revision 1.252 sys/compat/linux/common/linux_hdio.c: revision 1.19 sys/compat/sunos/sunos_ioctl.c: revision 1.71 sys/compat/linux/common/linux_sched.c: revision 1.79 sys/compat/common/kern_info_43.c: revision 1.40 sys/compat/linux32/common/linux32_exec_elf32.c: revision 1.20 sys/compat/linux/common/linux_socket.c: revision 1.153 sys/compat/linux/arch/amd64/linux_machdep.c: revision 1.60 sys/compat/common/vfs_syscalls_43.c: revision 1.68 sys/compat/linux/arch/powerpc/linux_exec_powerpc.c: revision 1.25 sys/compat/netbsd32/netbsd32_ptrace.c: revision 1.9 sys/compat/common/kern_time_50.c: revision 1.37 sys/compat/netbsd32/netbsd32_compat_20.c: revision 1.42 sys/compat/linux/common/linux_cdrom.c: revision 1.28 sys/compat/linux/arch/m68k/linux_machdep.c: revision 1.43 sys/compat/common/kern_info_09.c: revision 1.22 sys/compat/linux32/common/linux32_resource.c: revision 1.12 sys/compat/linux/common/linux_oldolduname.c: revision 1.67 sys/compat/common/if_media_80.c: revision 1.4 sys/compat/linux/arch/alpha/linux_osf1.c: revision 1.5 sys/compat/netbsd32/netbsd32_nfssvc.c: revision 1.8 sys/compat/linux32/common/linux32_signal.c: revision 1.21 sys/compat/common/kern_sig_13.c: revision 1.22 sys/compat/sunos32/sunos32_ioctl.c: revision 1.36 sys/compat/netbsd32/netbsd32_compat_43.c: revision 1.62 sys/compat/linux/arch/arm/linux_ptrace.c: revision 1.23 sys/compat/netbsd32/netbsd32_time.c: revision 1.56 sys/compat/linux/common/linux_signal.c: revision 1.84 sys/compat/netbsd32/netbsd32_signal.c: revision 1.52 sys/compat/sunos32/sunos32_misc.c: revision 1.85 sys/compat/linux/common/linux_time.c: revision 1.40 sys/compat/linux/common/linux_fdio.c: revision 1.14 sys/compat/common/vfs_syscalls_30.c: revision 1.43 sys/compat: Memset zero before copyout. Just in case of uninitialized padding which would lead to kernel stack disclosure. If the compiler can prove the memset redundant then it can optimize it away; otherwise better safe than sorry.
Diffstat (limited to 'sys/compat/common/kern_time_50.c')
-rw-r--r--sys/compat/common/kern_time_50.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/sys/compat/common/kern_time_50.c b/sys/compat/common/kern_time_50.c
index 0920d0152e9..023e4af6cec 100644
--- a/sys/compat/common/kern_time_50.c
+++ b/sys/compat/common/kern_time_50.c
@@ -1,4 +1,4 @@
-/* $NetBSD: kern_time_50.c,v 1.33 2019/01/27 02:08:39 pgoyette Exp $ */
+/* $NetBSD: kern_time_50.c,v 1.33.4.1 2022/08/03 11:11:31 martin Exp $ */
/*-
* Copyright (c) 2008, 2009 The NetBSD Foundation, Inc.
@@ -29,7 +29,7 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: kern_time_50.c,v 1.33 2019/01/27 02:08:39 pgoyette Exp $");
+__KERNEL_RCSID(0, "$NetBSD: kern_time_50.c,v 1.33.4.1 2022/08/03 11:11:31 martin Exp $");
#ifdef _KERNEL_OPT
#include "opt_compat_netbsd.h"
@@ -228,6 +228,7 @@ compat_50_sys_gettimeofday(struct lwp *l,
* NetBSD has no kernel notion of time zone, so we just
* fake up a timezone struct and return it if demanded.
*/
+ memset(&tzfake, 0, sizeof(tzfake));
tzfake.tz_minuteswest = 0;
tzfake.tz_dsttime = 0;
error = copyout(&tzfake, SCARG(uap, tzp), sizeof(tzfake));
@@ -462,6 +463,7 @@ compat_50_sys_mq_timedreceive(struct lwp *l,
void
rusage_to_rusage50(const struct rusage *ru, struct rusage50 *ru50)
{
+ memset(ru50, 0, sizeof(*ru50));
(void)memcpy(&ru50->ru_first, &ru->ru_first,
(char *)&ru50->ru_last - (char *)&ru50->ru_first +
sizeof(ru50->ru_last));