diff options
| author | Aleksandr Nogikh <nogikh@google.com> | 2024-08-13 20:29:15 +0200 |
|---|---|---|
| committer | Aleksandr Nogikh <nogikh@google.com> | 2024-08-14 06:00:45 +0000 |
| commit | 07a4d4adf03055fcc6a37148e43d3c931eb168d6 (patch) | |
| tree | 71c9c9e37343e784c784b9aa6dc1e0caca6b1edc /syz-manager/snapshot.go | |
| parent | bde81f6f54f0b2fa4440884eeffa7db36b70f837 (diff) | |
syz-manager: check for the minimum reply buffer size
Closes #5176.
Diffstat (limited to 'syz-manager/snapshot.go')
| -rw-r--r-- | syz-manager/snapshot.go | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/syz-manager/snapshot.go b/syz-manager/snapshot.go index 52d3f02e2..ece7974f2 100644 --- a/syz-manager/snapshot.go +++ b/syz-manager/snapshot.go @@ -161,6 +161,11 @@ func (mgr *Manager) snapshotRun(inst *vm.Instance, builder *flatbuffers.Builder, } func parseExecResult(data []byte) *flatrpc.ExecResult { + if len(data) < flatbuffers.SizeUint32 { + return &flatrpc.ExecResult{ + Error: "the buffer is too small", + } + } raw, err := flatrpc.Parse[*flatrpc.ExecutorMessageRaw](data[flatbuffers.SizeUint32:]) if err != nil { // Don't consider result parsing error as an infrastructure error, |