From: Hillf Danton <hdanton@sina.com>
To: syzbot <syzbot+4ed6852d4da4606c93da@syzkaller.appspotmail.com>
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [bluetooth?] general protection fault in bcsp_recv
Date: Mon, 30 Jun 2025 16:03:57 +0800 [thread overview]
Message-ID: <20250630080413.2136-1-hdanton@sina.com> (raw)
In-Reply-To: <67edcea4.050a0220.297a31.0022.GAE@google.com>
> Date: Wed, 02 Apr 2025 16:56:20 -0700
> syzbot has found a reproducer for the following issue on:
>
> HEAD commit: acc4d5ff0b61 Merge tag 'net-6.15-rc0' of git://git.kernel...
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=135a6178580000
> kernel config: https://syzkaller.appspot.com/x/.config?x=410c49aba9aeb859
> dashboard link: https://syzkaller.appspot.com/bug?extid=4ed6852d4da4606c93da
> compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=134ec7cf980000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13315274580000
#syz test
--- x/drivers/bluetooth/hci_ldisc.c
+++ y/drivers/bluetooth/hci_ldisc.c
@@ -615,7 +615,7 @@ static void hci_uart_tty_receive(struct
percpu_down_read(&hu->proto_lock);
- if (!test_bit(HCI_UART_PROTO_READY, &hu->flags) &&
+ if (!test_bit(HCI_UART_PROTO_READY, &hu->flags) ||
!test_bit(HCI_UART_PROTO_INIT, &hu->flags)) {
percpu_up_read(&hu->proto_lock);
return;
--
next prev parent reply other threads:[~2025-06-30 8:04 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-15 17:18 syzbot
2025-04-02 23:56 ` syzbot
2025-06-30 8:03 ` Hillf Danton [this message]
2025-06-30 8:39 ` syzbot
2025-06-30 3:03 ` [syzbot] " syzbot
2025-08-27 14:29 ` Forwarded: " syzbot
2025-08-27 14:36 ` syzbot
2025-08-30 18:37 ` Ivan Pravdin
2025-08-30 19:46 ` syzbot
[not found] <pxrxtntcuuqt5opsno55wx62yqafwhfqkqhylpbwwkqt4iabdv@2nmky356ufdo>
2025-06-30 3:22 ` syzbot
[not found] <nqdjhsx4cy3x64g3q6w6ffczvcwhh7aavelmrvqjtinqetusa4@4xdhtbpkhlse>
2025-08-27 15:11 ` syzbot
[not found] <cdfnb7ox7u3qogpyvxgti4ljpsa7ohvh2ilzy2tqygzsvxmh3a@cglm7naoohg5>
2025-08-27 15:49 ` syzbot
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