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clipboard: fix memory leak from unbounded offer maps and unguarded file reads

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This commit is contained in:
bbedward
2026-02-20 11:39:41 -05:00
parent 2f445c546a
commit babc8feb2b
1 changed files with 24 additions and 6 deletions
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30
core/internal/server/clipboard/manager.go
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@@ -232,8 +232,15 @@ func (m *Manager) setupDataDeviceSync() {
return
}
prevOffer := m.currentOffer
m.currentOffer = offer
if prevOffer != nil && prevOffer != offer {
m.offerMutex.Lock()
delete(m.offerMimeTypes, prevOffer)
m.offerMutex.Unlock()
}
m.offerMutex.RLock()
mimes := m.offerMimeTypes[offer]
m.offerMutex.RUnlock()
@@ -587,20 +594,26 @@ func (m *Manager) uriListPreview(data []byte) (string, bool) {
uris = strings.Split(text, "\n")
}
if len(uris) > 1 {
return fmt.Sprintf("[[ %d files ]]", len(uris)), false
}
if len(uris) == 1 && strings.HasPrefix(uris[0], "file://") {
filePath := strings.TrimPrefix(uris[0], "file://")
if info, err := os.Stat(filePath); err == nil && !info.IsDir() {
info, err := os.Stat(filePath)
if err != nil || info.IsDir() {
return m.textPreview(data), false
}
cfg := m.getConfig()
if info.Size() <= cfg.MaxEntrySize {
if imgData, err := os.ReadFile(filePath); err == nil {
if config, imgFmt, err := image.DecodeConfig(bytes.NewReader(imgData)); err == nil {
return fmt.Sprintf("[[ file %s %s %dx%d ]]", filepath.Base(filePath), imgFmt, config.Width, config.Height), true
}
}
return fmt.Sprintf("[[ file %s ]]", filepath.Base(filePath)), false
}
}
if len(uris) > 1 {
return fmt.Sprintf("[[ %d files ]]", len(uris)), false
return fmt.Sprintf("[[ file %s ]]", filepath.Base(filePath)), false
}
return m.textPreview(data), false
@@ -623,6 +636,11 @@ func (m *Manager) tryReadImageFromURI(data []byte) ([]byte, string, bool) {
return nil, "", false
}
cfg := m.getConfig()
if info.Size() > cfg.MaxEntrySize {
return nil, "", false
}
imgData, err := os.ReadFile(filePath)
if err != nil {
return nil, "", false