diff options
| author | Gunnar Beutner <gunnar@beutner.name> | 2021-04-25 13:39:11 +0200 |
|---|---|---|
| committer | Andreas Kling <kling@serenityos.org> | 2021-04-26 17:13:55 +0200 |
| commit | 64639de4d25905febf9ee48b5211696ac691bbe4 (patch) | |
| tree | cc66cf9fb7767896bd09d4552de0fb7913604e15 /Kernel/PerformanceEventBuffer.cpp | |
| parent | d164da7d19469ff06df7671aae02157055f337ac (diff) | |
| download | serenity-64639de4d25905febf9ee48b5211696ac691bbe4.zip | |
Kernel: Stop walking the stack when we encounter return address 0
Diffstat (limited to 'Kernel/PerformanceEventBuffer.cpp')
| -rw-r--r-- | Kernel/PerformanceEventBuffer.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Kernel/PerformanceEventBuffer.cpp b/Kernel/PerformanceEventBuffer.cpp index 1aafac5b40..8f8023e510 100644 --- a/Kernel/PerformanceEventBuffer.cpp +++ b/Kernel/PerformanceEventBuffer.cpp @@ -45,6 +45,8 @@ static Vector<FlatPtr, PerformanceEvent::max_stack_frame_count> raw_backtrace(Fl FlatPtr retaddr; if (!safe_memcpy(&retaddr, (void*)(stack_ptr + sizeof(FlatPtr)), sizeof(FlatPtr), fault_at)) break; + if (retaddr == 0) + break; backtrace.append(retaddr); if (backtrace.size() == PerformanceEvent::max_stack_frame_count) break; |