From: Hillf Danton <hdanton@sina.com>
To: syzbot <syzbot+c55f7bc8d4809b2bad59@syzkaller.appspotmail.com>
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [bluetooth?] possible deadlock in hci_dev_do_close (2)
Date: Mon, 29 Apr 2024 07:42:40 +0800 [thread overview]
Message-ID: <20240428234240.4096-1-hdanton@sina.com> (raw)
In-Reply-To: <000000000000eda1e806172fc058@google.com>
On Sun, 28 Apr 2024 15:35:27 -0700
> syzbot has found a reproducer for the following issue on:
>
> HEAD commit: bb7a2467e6be Add linux-next specific files for 20240426
> git tree: linux-next
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1349ee9b180000
#syz test https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git bb7a2467e6be
--- x/net/bluetooth/hci_sync.c
+++ y/net/bluetooth/hci_sync.c
@@ -306,11 +306,9 @@ static void hci_cmd_sync_work(struct wor
if (entry->func) {
int err;
- hci_req_sync_lock(hdev);
err = entry->func(hdev, entry->data);
if (entry->destroy)
entry->destroy(hdev, entry->data, err);
- hci_req_sync_unlock(hdev);
}
kfree(entry);
--
next prev parent reply other threads:[~2024-04-28 23:42 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-26 13:39 syzbot
2024-04-28 22:35 ` syzbot
2024-04-28 23:42 ` Hillf Danton [this message]
2024-04-29 1:10 ` syzbot
2024-04-29 18:37 ` syzbot
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