From f465113064783bb8d6b210618f4ede8d296b616e Mon Sep 17 00:00:00 2001
From: Tedd Ho-Jeong An <tedd.an@intel.com>
Date: Wed, 4 Nov 2020 21:09:48 -0800
Subject: [PATCH 1/2] workflow: Add workflow files for ci

This patch adds workflow files for ci:

[sync.yml]
 - The workflow file for scheduled work
 - Sync the repo with upstream repo and rebase the workflow branch
 - Review the patches in the patchwork and creates the PR if needed

[ci.yml]
 - The workflow file for CI tasks
 - Run CI tests when PR is created

Signed-off-by: Tedd Ho-Jeong An <tedd.an@intel.com>
---
 .github/workflows/ci.yml   | 25 ++++++++++++++++++++++
 .github/workflows/sync.yml | 43 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 68 insertions(+)
 create mode 100644 .github/workflows/ci.yml
 create mode 100644 .github/workflows/sync.yml

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000000000..3a2c45c37553c
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,25 @@
+name: CI
+
+on: [pull_request]
+
+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: tedd-an/bzcafe@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 }}
+
diff --git a/.github/workflows/sync.yml b/.github/workflows/sync.yml
new file mode 100644
index 0000000000000..3883d55a23267
--- /dev/null
+++ b/.github/workflows/sync.yml
@@ -0,0 +1,43 @@
+name: Sync
+
+on:
+  schedule:
+  - cron: "*/30 * * * *"
+
+jobs:
+  sync_repo:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+      with:
+        ref: master
+
+    - name: Sync Repo
+      uses: tedd-an/bzcafe@main
+      with:
+        task: sync
+        upstream_repo: 'https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git'
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+
+    - name: Cleanup PR
+      uses: tedd-an/bzcafe@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: tedd-an/bzcafe@main
+      with:
+        task: patchwork
+        space: kernel
+        github_token: ${{ secrets.ACTION_TOKEN }}
+        email_token: ${{ secrets.EMAIL_TOKEN }}
+        patchwork_token: ${{ secrets.PATCHWORK_TOKEN }}
+        patchwork_user: ${{ secrets.PATCHWORK_USER }}
+

From 4d29fb3d32f25fa3efc673a510df19e55797d966 Mon Sep 17 00:00:00 2001
From: Dudu Lu <phx0fer@gmail.com>
Date: Sun, 5 Apr 2026 23:47:41 +0800
Subject: [PATCH 2/2] Bluetooth: l2cap: Add missing chan lock in
 l2cap_ecred_reconf_rsp

l2cap_ecred_reconf_rsp() calls l2cap_chan_del() without holding
l2cap_chan_lock(). Every other l2cap_chan_del() caller in the file
acquires the lock first. A remote BLE device can send a crafted
L2CAP ECRED reconfiguration response to corrupt the channel list
while another thread is iterating it.

Add l2cap_chan_hold() and l2cap_chan_lock() before l2cap_chan_del(),
and l2cap_chan_unlock() and l2cap_chan_put() after, matching the
pattern used in l2cap_ecred_conn_rsp() and l2cap_conn_del().

Fixes: 15f02b910562 ("Bluetooth: L2CAP: Add L2CAP_ECRED_RECONF support")
Signed-off-by: Dudu Lu <phx0fer@gmail.com>
---
 net/bluetooth/l2cap_core.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 5a4cd530ef33c..77dec104a9c36 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -5473,7 +5473,13 @@ static inline int l2cap_ecred_reconf_rsp(struct l2cap_conn *conn,
 		if (chan->ident != cmd->ident)
 			continue;
 
+		l2cap_chan_hold(chan);
+		l2cap_chan_lock(chan);
+
 		l2cap_chan_del(chan, ECONNRESET);
+
+		l2cap_chan_unlock(chan);
+		l2cap_chan_put(chan);
 	}
 
 	return 0;