diff options
| author | martin <martin@NetBSD.org> | 2022-08-03 11:11:31 +0000 |
|---|---|---|
| committer | martin <martin@NetBSD.org> | 2022-08-03 11:11:31 +0000 |
| commit | c0cbb295300c06ff7945a8867c3b48a4e30dcb6c (patch) | |
| tree | 469ab5d104a53979d171771f7497c81e40af2693 /sys/compat/common/kern_sig_43.c | |
| parent | 8644187dad7b54af091a9162382bb0b561d53fbc (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_sig_43.c')
| -rw-r--r-- | sys/compat/common/kern_sig_43.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sys/compat/common/kern_sig_43.c b/sys/compat/common/kern_sig_43.c index 384e92e26f9..fb087bb5d1d 100644 --- a/sys/compat/common/kern_sig_43.c +++ b/sys/compat/common/kern_sig_43.c @@ -1,4 +1,4 @@ -/* $NetBSD: kern_sig_43.c,v 1.35.4.1 2020/01/02 09:50:34 martin Exp $ */ +/* $NetBSD: kern_sig_43.c,v 1.35.4.2 2022/08/03 11:11:31 martin Exp $ */ /*- * Copyright (c) 1998 The NetBSD Foundation, Inc. @@ -30,7 +30,7 @@ */ #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: kern_sig_43.c,v 1.35.4.1 2020/01/02 09:50:34 martin Exp $"); +__KERNEL_RCSID(0, "$NetBSD: kern_sig_43.c,v 1.35.4.2 2022/08/03 11:11:31 martin Exp $"); #if defined(_KERNEL_OPT) #include "opt_compat_netbsd.h" @@ -86,6 +86,7 @@ void compat_43_sigmask_to_sigset(const int *sm, sigset_t *ss) { + memset(ss, 0, sizeof(*ss)); ss->__bits[0] = *sm; ss->__bits[1] = 0; ss->__bits[2] = 0; @@ -102,6 +103,8 @@ compat_43_sigset_to_sigmask(const sigset_t *ss, int *sm) void compat_43_sigvec_to_sigaction(const struct sigvec *sv, struct sigaction *sa) { + + memset(sa, 0, sizeof(*sa)); sa->sa_handler = sv->sv_handler; compat_43_sigmask_to_sigset(&sv->sv_mask, &sa->sa_mask); sa->sa_flags = sv->sv_flags ^ SA_RESTART; @@ -110,6 +113,8 @@ compat_43_sigvec_to_sigaction(const struct sigvec *sv, struct sigaction *sa) void compat_43_sigaction_to_sigvec(const struct sigaction *sa, struct sigvec *sv) { + + memset(sv, 0, sizeof(*sv)); sv->sv_handler = sa->sa_handler; compat_43_sigset_to_sigmask(&sa->sa_mask, &sv->sv_mask); sv->sv_flags = sa->sa_flags ^ SA_RESTART; @@ -118,6 +123,7 @@ compat_43_sigaction_to_sigvec(const struct sigaction *sa, struct sigvec *sv) void compat_43_sigstack_to_sigaltstack(const struct sigstack *ss, struct sigaltstack *sa) { + memset(sa, 0, sizeof(*sa)); sa->ss_sp = ss->ss_sp; sa->ss_size = SIGSTKSZ; /* Use the recommended size */ sa->ss_flags = 0; |
