[PW_SID:1152789] [v1,1/2] Bluetooth: SCO: require CAP_NET_BIND_SERVICE to bind

.github/workflows/ci.yml

@@ -0,0 +1,31 @@
+name: CI
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened]
+
+permissions:
+  checks: write
+  pull-requests: write
+
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+    name: CI for Pull Request
+    steps:
+    - name: Checkout the source code
+      uses: actions/checkout@v3
+      with:
+        path: src/src
+
+    - name: CI
+      uses: bluez/action-ci@main
+      with:
+        task: ci
+        base_folder: src
+        space: kernel
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        email_token: ${{ secrets.EMAIL_TOKEN }}
+        patchwork_token: ${{ secrets.PATCHWORK_TOKEN }}
+        patchwork_user: ${{ secrets.PATCHWORK_USER }}
+

.github/workflows/sync.yml

@@ -0,0 +1,44 @@
+name: Sync
+
+on:
+  schedule:
+  - cron: "*/5 * * * *"
+
+jobs:
+  sync_repo:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+      with:
+        ref: master
+
+    - name: Sync Repo
+      uses: bluez/action-ci@main
+      with:
+        task: sync
+        workflow: workflow
+        upstream_repo: 'https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git'
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+
+    - name: Cleanup PR
+      uses: bluez/action-ci@main
+      with:
+        task: cleanup
+        github_token: ${{ secrets.ACTION_TOKEN }}
+
+  sync_patchwork:
+    needs: sync_repo
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Sync Patchwork
+      uses: bluez/action-ci@main
+      with:
+        task: patchwork
+        workflow: workflow
+        space: kernel
+        github_token: ${{ secrets.ACTION_TOKEN }}
+        email_token: ${{ secrets.EMAIL_TOKEN }}
+        patchwork_token: ${{ secrets.PATCHWORK_TOKEN }}
+        patchwork_user: ${{ secrets.PATCHWORK_USER }}

net/bluetooth/iso.c

@@ -1200,6 +1200,13 @@ static int iso_sock_bind(struct socket *sock, struct sockaddr_unsized *addr,
 	    addr->sa_family != AF_BLUETOOTH)
 		return -EINVAL;
 
+	/* Binding an ISO socket reserves the ability to accept any incoming
+	 * CIS/BIS on the adapter, so restrict it in the same way L2CAP
+	 * restricts well-known PSMs.
+	 */
+	if (!capable(CAP_NET_BIND_SERVICE))
+		return -EACCES;
+
 	lock_sock(sk);
 
 	if ((sk->sk_state == BT_CONNECT2 || sk->sk_state == BT_CONNECTED) &&

net/bluetooth/sco.c

@@ -667,6 +667,13 @@ static int sco_sock_bind(struct socket *sock, struct sockaddr_unsized *addr,
 
 	BT_DBG("sk %p %pMR", sk, &sa->sco_bdaddr);
 
+	/* Binding a SCO socket reserves the ability to accept any incoming
+	 * eSCO/SCO connection on the adapter, so restrict it in the same way
+	 * L2CAP restricts well-known PSMs.
+	 */
+	if (!capable(CAP_NET_BIND_SERVICE))
+		return -EACCES;
+
 	lock_sock(sk);
 
 	if (sk->sk_state != BT_OPEN) {