linux-kernel - Re: [syzbot] Re: [syzbot] [bluetooth?] general protection fault in bcsp

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <6861fe95.a70a0220.3b7e22.0b8b.GAE@google.com>
Date: Sun, 29 Jun 2025 20:03:49 -0700
From: syzbot <syzbot+4ed6852d4da4606c93da@...kaller.appspotmail.com>
To: linux-kernel@...r.kernel.org
Subject: Re: [syzbot] Re: [syzbot] [bluetooth?] general protection fault in bcsp_recv

For archival purposes, forwarding an incoming command email to
linux-kernel@...r.kernel.org.

***

Subject: Re: [syzbot] [bluetooth?] general protection fault in bcsp_recv
Author: ipravdin.official@...il.com

#syz test

diff --git a/drivers/bluetooth/hci_bcsp.c b/drivers/bluetooth/hci_bcsp.c
index 610d0e3c36d4..de9a6ed3a8aa 100644
--- a/drivers/bluetooth/hci_bcsp.c
+++ b/drivers/bluetooth/hci_bcsp.c
@@ -739,8 +739,6 @@ static int bcsp_close(struct hci_uart *hu)

        timer_shutdown_sync(&bcsp->tbcsp);

-       hu->priv = NULL;
-
        BT_DBG("hu %p", hu);

        skb_queue_purge(&bcsp->unack);
@@ -753,6 +751,8 @@ static int bcsp_close(struct hci_uart *hu)
        }

        kfree(bcsp);
+       hu->priv = NULL;
+
        return 0;
 }

	Ivan Pravdin