CPU (Linux): don't access out-of-bound memory

2026-11-08 14:10:11 +01:00 · 2024-01-18 15:06:47 +08:00
parent 947d2ff0a9
commit 5096180e92
1 changed files with 4 additions and 0 deletions
@@ -191,6 +191,8 @@ const char* ffDetectCPUImpl(const FFCPUOptions* options, FFCPUResult* cpu)
                            ffStrbufAppendS(&cpu->vendor, pstart);
                        }
                        pstart = pend + 1;
+                        if (pstart >= buffer.chars + buffer.length)
+                            return NULL;
                    }
                }
            }
@@ -222,6 +224,8 @@ const char* ffDetectCPUImpl(const FFCPUOptions* options, FFCPUResult* cpu)
                }

                pstart = pend + 1;
+                if (pstart >= buffer.chars + buffer.length)
+                    return NULL;
            }
        }
    }