1 files changed, 8 insertions, 5 deletions

diff --git a/kernel/signal.c b/kernel/signal.c
index 836df8dac6cc..0f6bbbe77b46 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2748,12 +2748,15 @@ 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:
@@ -3017,7 +3020,7 @@ 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;
@@ -3061,7 +3064,7 @@ 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;