From: Siwei Zhang <oss@fourdim.xyz>
To: stable@vger.kernel.org
Cc: Siwei Zhang <oss@fourdim.xyz>,
Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Subject: [PATCH 6.12.y] Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_get_sndtimeo_cb()
Date: Wed, 13 May 2026 09:02:37 -0400 [thread overview]
Message-ID: <20260513130248.2192409-1-oss@fourdim.xyz> (raw)
In-Reply-To: <2026051216-harsh-pretender-53e0@gregkh>
Add the same NULL guard already present in
l2cap_sock_resume_cb() and l2cap_sock_ready_cb().
Fixes: 8d836d71e222 ("Bluetooth: Access sk_sndtimeo indirectly in l2cap_core.c")
Cc: stable@kernel.org
Signed-off-by: Siwei Zhang <oss@fourdim.xyz>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
---
net/bluetooth/l2cap_sock.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 1960d35b3be0..adee617517bb 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1725,6 +1725,9 @@ static long l2cap_sock_get_sndtimeo_cb(struct l2cap_chan *chan)
{
struct sock *sk = chan->data;
+ if (!sk)
+ return 0;
+
return sk->sk_sndtimeo;
}
--
2.54.0
prev parent reply other threads:[~2026-05-13 13:02 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-12 12:43 FAILED: patch "[PATCH] Bluetooth: L2CAP: Fix null-ptr-deref in" failed to apply to 6.12-stable tree gregkh
2026-05-13 13:02 ` Siwei Zhang [this message]
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