diff options
Diffstat (limited to 'libXfont/src/fontfile/fontdir.c')
| -rw-r--r-- | libXfont/src/fontfile/fontdir.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libXfont/src/fontfile/fontdir.c b/libXfont/src/fontfile/fontdir.c index 13cda0a37..a4d41960b 100644 --- a/libXfont/src/fontfile/fontdir.c +++ b/libXfont/src/fontfile/fontdir.c @@ -179,6 +179,11 @@ FontFileAddEntry(FontTablePtr table, FontEntryPtr prototype) if (table->sorted) return (FontEntryPtr) 0; /* "cannot" happen */ if (table->used == table->size) { + if (table->size >= ((INT32_MAX / sizeof(FontEntryRec)) - 100)) + /* If we've read so many entries we're going to ask for 2gb + or more of memory, something is so wrong with this font + directory that we should just give up before we overflow. */ + return NULL; newsize = table->size + 100; entry = realloc(table->entries, newsize * sizeof(FontEntryRec)); if (!entry) |