From: Ignat Korchagin <ignat@xxxxxxxxxxxxxx> Date: Mon, 14 Oct 2024 16:38:01 +0100 > bt_sock_alloc() allocates the sk object and attaches it to the provided > sock object. On error l2cap_sock_alloc() frees the sk object, but the > dangling pointer is still attached to the sock object, which may create > use-after-free in other code. > > Signed-off-by: Ignat Korchagin <ignat@xxxxxxxxxxxxxx> Reviewed-by: Kuniyuki Iwashima <kuniyu@xxxxxxxxxx> Checked all bt_sock_alloc() paths and confirmed only rfcomm and l2cap need changes.