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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2006-10-27 14:39:22 +0400 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2006-10-27 14:39:22 +0400 |
| commit | 12bae23507129a7337378e6433bff6f8696bdb45 (patch) | |
| tree | ad28d5bcebf3aebe8926446a5d12418f62276b8a /arch/s390/kernel/compat_signal.c | |
| parent | c2b1449bd1fd73103ed5ff1a28d8f7cbc8a01b52 (diff) | |
| download | linux-12bae23507129a7337378e6433bff6f8696bdb45.tar.xz | |
[S390] uaccess error handling.
Consider return values for all user space access function and
return -EFAULT on error.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/compat_signal.c')
| -rw-r--r-- | arch/s390/kernel/compat_signal.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c index d49b876a83bf..861888ab8c13 100644 --- a/arch/s390/kernel/compat_signal.c +++ b/arch/s390/kernel/compat_signal.c @@ -169,12 +169,12 @@ sys32_sigaction(int sig, const struct old_sigaction32 __user *act, compat_old_sigset_t mask; if (!access_ok(VERIFY_READ, act, sizeof(*act)) || __get_user(sa_handler, &act->sa_handler) || - __get_user(sa_restorer, &act->sa_restorer)) + __get_user(sa_restorer, &act->sa_restorer) || + __get_user(new_ka.sa.sa_flags, &act->sa_flags) || + __get_user(mask, &act->sa_mask)) return -EFAULT; new_ka.sa.sa_handler = (__sighandler_t) sa_handler; new_ka.sa.sa_restorer = (void (*)(void)) sa_restorer; - __get_user(new_ka.sa.sa_flags, &act->sa_flags); - __get_user(mask, &act->sa_mask); siginitset(&new_ka.sa.sa_mask, mask); } @@ -185,10 +185,10 @@ sys32_sigaction(int sig, const struct old_sigaction32 __user *act, sa_restorer = (unsigned long) old_ka.sa.sa_restorer; if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) || __put_user(sa_handler, &oact->sa_handler) || - __put_user(sa_restorer, &oact->sa_restorer)) + __put_user(sa_restorer, &oact->sa_restorer) || + __put_user(old_ka.sa.sa_flags, &oact->sa_flags) || + __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask)) return -EFAULT; - __put_user(old_ka.sa.sa_flags, &oact->sa_flags); - __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask); } return ret; |