8287609: macOS: SIGSEGV at [CoreFoundation] CFArrayGetCount / sun.font.CFont.getTableBytesNative

Reviewed-by: prr
2022-06-05 15:34:47 +00:00 · 2022-06-05 15:34:47 +00:00 · 8c460b043e
commit 8c460b043e
parent 3df4b034fb
1 changed files with 3 additions and 0 deletions
--- a/src/java.desktop/macosx/native/libawt_lwawt/font/AWTFont.m
+++ b/src/java.desktop/macosx/native/libawt_lwawt/font/AWTFont.m
@ -379,6 +379,9 @@ JNI_COCOA_ENTER(env);
    CTFontRef ctfont = (CTFontRef)nsFont;
    CFArrayRef tagsArray =
        CTFontCopyAvailableTables(ctfont, kCTFontTableOptionNoOptions);
+    if (tagsArray == NULL) {
+        return NULL;
+    }
    CFIndex numTags = CFArrayGetCount(tagsArray);
    for (i=0; i<numTags; i++) {
        if (tag ==