Force tick interrupt and get rid of softirq magic

[kvmfornfv.git] / kernel / kernel / signal.c

diff --git a/kernel/kernel/signal.c b/kernel/kernel/signal.c
index 7dc2ebe..1336e4c 100644 (file)
--- a/kernel/kernel/signal.c
+++ b/kernel/kernel/signal.c
@@ -2854,12 +2854,15 @@ int copy_siginfo_to_user(siginfo_t __user *to, const siginfo_t *from)
                 * Other callers might not initialize the si_lsb field,
                 * so check explicitly for the right codes here.
                 */
-               if (from->si_code == BUS_MCEERR_AR || from->si_code == BUS_MCEERR_AO)
+               if (from->si_signo == SIGBUS &&
+                   (from->si_code == BUS_MCEERR_AR || from->si_code == BUS_MCEERR_AO))
                        err |= __put_user(from->si_addr_lsb, &to->si_addr_lsb);
 #endif
 #ifdef SEGV_BNDERR
-               err |= __put_user(from->si_lower, &to->si_lower);
-               err |= __put_user(from->si_upper, &to->si_upper);
+               if (from->si_signo == SIGSEGV && from->si_code == SEGV_BNDERR) {
+                       err |= __put_user(from->si_lower, &to->si_lower);
+                       err |= __put_user(from->si_upper, &to->si_upper);
+               }
 #endif
                break;
        case __SI_CHLD:
@@ -3123,7 +3126,7 @@ COMPAT_SYSCALL_DEFINE3(rt_sigqueueinfo,
                        int, sig,
                        struct compat_siginfo __user *, uinfo)
 {
-       siginfo_t info;
+       siginfo_t info = {};
        int ret = copy_siginfo_from_user32(&info, uinfo);
        if (unlikely(ret))
                return ret;
@@ -3167,7 +3170,7 @@ COMPAT_SYSCALL_DEFINE4(rt_tgsigqueueinfo,
                        int, sig,
                        struct compat_siginfo __user *, uinfo)
 {
-       siginfo_t info;
+       siginfo_t info = {};
 
        if (copy_siginfo_from_user32(&info, uinfo))
                return -EFAULT;