fix: dereference NULL point bug fix

Change-Id: Ib068696c9280105e209469e875c187d741b704d2

fix: dereference NULL point bug fix
Change-Id: Ib068696c9280105e209469e875c187d741b704d2
deaa564a · Guangyao Ma · YOUR_NAME · be40fa13 · deaa564a
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Showing with 5 addition and 1 deletion

kernel/base/ipc/los_signal.c kernel/base/ipc/los_signal.c +5 -1

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--- a/kernel/base/ipc/los_signal.c
+++ b/kernel/base/ipc/los_signal.c
@@ -270,8 +270,12 @@ int OsSigProcessSend(LosProcessCB *spcb, siginfo_t *sigInfo)
        .receivedTcb = NULL
    };

+    if (info.sigInfo == NULL){
+        return -EFAULT;
+    }
+
    /* visit all taskcb and dispatch signal */
-    if ((info.sigInfo != NULL) && (info.sigInfo->si_signo == SIGKILL)) {
+    if (info.sigInfo->si_signo == SIGKILL) {
        (void)OsSigProcessForeachChild(spcb, SigProcessKillSigHandler, &info);
        OsSigAddSet(&spcb->sigShare, info.sigInfo->si_signo);
        OsWaitSignalToWakeProcess(spcb);