diff --git a/modules/video_capture/linux/pipewire_session.cc b/modules/video_capture/linux/pipewire_session.cc
index 2adb1cdb50..3f52b3dd61 100644
--- a/modules/video_capture/linux/pipewire_session.cc
+++ b/modules/video_capture/linux/pipewire_session.cc
@@ -232,7 +232,10 @@ PipeWireSession::~PipeWireSession() {
 }
 
 void PipeWireSession::Init(VideoCaptureOptions::Callback* callback, int fd) {
-  callback_ = callback;
+  {
+    webrtc::MutexLock lock(&callback_lock_);
+    callback_ = callback;
+  }
 
   if (fd != kInvalidPipeWireFd) {
     InitPipeWire(fd);
@@ -374,6 +377,8 @@ void PipeWireSession::OnRegistryGlobalRemove(void* data, uint32_t id) {
 }
 
 void PipeWireSession::Finish(VideoCaptureOptions::Status status) {
+  webrtc::MutexLock lock(&callback_lock_);
+
   if (callback_) {
     callback_->OnInitialized(status);
     callback_ = nullptr;
@@ -381,6 +386,9 @@ void PipeWireSession::Finish(VideoCaptureOptions::Status status) {
 }
 
 void PipeWireSession::Cleanup() {
+  webrtc::MutexLock lock(&callback_lock_);
+  callback_ = nullptr;
+
   StopPipeWire();
 }
 
diff --git a/modules/video_capture/linux/pipewire_session.h b/modules/video_capture/linux/pipewire_session.h
index 982b468838..fdc06a6b2a 100644
--- a/modules/video_capture/linux/pipewire_session.h
+++ b/modules/video_capture/linux/pipewire_session.h
@@ -24,6 +24,7 @@
 #include "modules/video_capture/linux/camera_portal.h"
 #include "modules/video_capture/video_capture.h"
 #include "modules/video_capture/video_capture_options.h"
+#include "rtc_base/synchronization/mutex.h"
 
 namespace webrtc {
 namespace videocapturemodule {
@@ -117,7 +118,9 @@ class PipeWireSession : public rtc::RefCountedNonVirtual<PipeWireSession> {
   void Finish(VideoCaptureOptions::Status status);
   void Cleanup();
 
-  VideoCaptureOptions::Callback* callback_ = nullptr;
+  webrtc::Mutex callback_lock_;
+  VideoCaptureOptions::Callback* callback_ RTC_GUARDED_BY(&callback_lock_) =
+      nullptr;
 
   VideoCaptureOptions::Status status_;