From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f207.google.com (mail-il1-f207.google.com [209.85.166.207]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A7CFD205ABD for ; Fri, 10 Jan 2025 14:20:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.207 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736518826; cv=none; b=eii1AxZrN4AxkBXF5727QQ0yRRnyHTELJ0YMfRzEJW1uPh7GJUJYbvC+BhILOlFOhhlBJu+1iwdXKxPZITwZZ8oqqivXbJIoO8e7XUGRIqDz3WdzqLY4O74pKJ8/GxMlgSnfupf3lNxpSyC2JcB4dUOdgYXwUVHe0zTw5lwFJAM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736518826; c=relaxed/simple; bh=ajQEsSb1IQq6WExVT4NevFWsgP8xb2CyUL5PsTIdGo0=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=RAugC0YFJzaGXyYhVnt+iKcvqc4ROUM4zyVKHDDm++vrmwOpIaVUTSeqabfF1c1eZL/nt8JNJI5BCzHzLMipBx3wT9dF3WlnXGvYlryHE/MFShwR3ayCgQJb0McGMmyKa3r7oOWX+/ZfTsdvR/Jh+DF5aMASdZtYqtsxEp3ghfk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.207 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f207.google.com with SMTP id e9e14a558f8ab-3a814406be9so33744695ab.1 for ; Fri, 10 Jan 2025 06:20:24 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1736518824; x=1737123624; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=WiMhw/ZKXlR6UuxS/YFCk87Gnqs8hJfT1XO+CscnUc0=; b=qyW+uRHOu87XXjUPOL/YKzBkind7q9KKshy4WnkhaMWVkPVwiXeCWj5Sl6O34Cz00Z fDeyqIlpJ5VmM1heR7Ims6dW+tcCp3rmPt6+KuOUvva/1tlvjJZ7JC9bxEUOMC+7QgAR rRxJquoi58loI1M+nFrUaTAYivxoo1yi3K5PUJPA6gkPO72sApM4n87xyxjatQVelYhQ yYYN5LS8RjFEouaXpKV2+ZJ9Y3iWxYKLuTCUNMK3r/O7ETCw4h7ZjVD2EmfpmmEVuz1P YO8uc0QwNUZjgZFaQq/3j7JQTeRHUYnuylZG4UG/1Ee7xq+LfUHjLxcrVx4WiN0YdfQJ B/oQ== X-Forwarded-Encrypted: i=1; AJvYcCXSjgiGowBiDTIy60xLf0eaRBP3KAXgBNYgJF5il9z57234a4KaWhcIpUzICjttA9Ixo4rw/FZJFL67HTE=@vger.kernel.org X-Gm-Message-State: AOJu0YzqdNFzg93L/YbpJMsyEXrr8zK9ucQFzMoYQqibgAJnejGPdVj+ tApLA+cvA64fqfwmWjZt+JrthGOtZUxBWfbW7lqRKAtdG+73lBybRO2LnPhsVEN33+gf1xm0AbS pQYioMELTzAXj+qc/JT+fOP13QkXSSc6WLBU6wdTx5f0dKDQ44/jLb0I= X-Google-Smtp-Source: AGHT+IGxaM3nRgV9d+K/jc8+GWe81awMVQMekE8tw2VxOvKvq0iPOlkdWObpAID1zL6u9cfsKl3aJscCT8KDvbwpqP8Vct/EY3/u Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1f8a:b0:3cc:b7e4:6264 with SMTP id e9e14a558f8ab-3ce3a892c05mr86224125ab.0.1736518823966; Fri, 10 Jan 2025 06:20:23 -0800 (PST) Date: Fri, 10 Jan 2025 06:20:23 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67812ca7.050a0220.216c54.0013.GAE@google.com> Subject: [syzbot] [bluetooth?] general protection fault in hci_abort_conn From: syzbot To: johan.hedberg@gmail.com, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, luiz.dentz@gmail.com, marcel@holtmann.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: aef25be35d23 hexagon: Disable constant extender optimizati.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17d80cf8580000 kernel config: https://syzkaller.appspot.com/x/.config?x=6a2b862bf4a5409f dashboard link: https://syzkaller.appspot.com/bug?extid=fa8378fe580fb09ae553 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/450e0387636e/disk-aef25be3.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/8912f33f56fc/vmlinux-aef25be3.xz kernel image: https://storage.googleapis.com/syzbot-assets/293fd2e7560b/bzImage-aef25be3.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+fa8378fe580fb09ae553@syzkaller.appspotmail.com Oops: general protection fault, probably for non-canonical address 0xdffffc0000000007: 0000 [#1] PREEMPT SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f] CPU: 1 UID: 0 PID: 5826 Comm: kworker/u9:2 Not tainted 6.13.0-rc3-syzkaller-00044-gaef25be35d23 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 Workqueue: hci6 hci_conn_timeout RIP: 0010:hci_abort_conn+0x147/0x330 net/bluetooth/hci_conn.c:3048 Code: ae 08 0d 00 00 48 89 e8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 ef e8 38 08 4d f7 48 8b 6d 00 48 83 c5 3b 48 89 e8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 22 01 00 00 0f b6 6d 00 48 89 ef 48 c7 RSP: 0018:ffffc9000307fb78 EFLAGS: 00010212 RAX: 0000000000000007 RBX: 0000000000000001 RCX: ffff888059fd5a00 RDX: ffff888059fd5a00 RSI: 0000000000000001 RDI: 0000000000000001 RBP: 000000000000003b R08: ffffffff8ab8d446 R09: ffffffff8aba1f98 R10: 0000000000000002 R11: ffff888059fd5a00 R12: ffff8880669b4000 R13: dffffc0000000000 R14: ffff88802f4fc000 R15: 0000000000000013 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000556cac811000 CR3: 0000000060eee000 CR4: 0000000000350ef0 Call Trace: process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa68/0x1840 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:hci_abort_conn+0x147/0x330 net/bluetooth/hci_conn.c:3048 Code: ae 08 0d 00 00 48 89 e8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 ef e8 38 08 4d f7 48 8b 6d 00 48 83 c5 3b 48 89 e8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 22 01 00 00 0f b6 6d 00 48 89 ef 48 c7 RSP: 0018:ffffc9000307fb78 EFLAGS: 00010212 RAX: 0000000000000007 RBX: 0000000000000001 RCX: ffff888059fd5a00 RDX: ffff888059fd5a00 RSI: 0000000000000001 RDI: 0000000000000001 RBP: 000000000000003b R08: ffffffff8ab8d446 R09: ffffffff8aba1f98 R10: 0000000000000002 R11: ffff888059fd5a00 R12: ffff8880669b4000 R13: dffffc0000000000 R14: ffff88802f4fc000 R15: 0000000000000013 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2c1521 CR3: 000000005bf38000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess): 0: ae scas %es:(%rdi),%al 1: 08 0d 00 00 48 89 or %cl,-0x76b80000(%rip) # 0x89480007 7: e8 48 c1 e8 03 call 0x3e8c154 c: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) 11: 74 08 je 0x1b 13: 48 89 ef mov %rbp,%rdi 16: e8 38 08 4d f7 call 0xf74d0853 1b: 48 8b 6d 00 mov 0x0(%rbp),%rbp 1f: 48 83 c5 3b add $0x3b,%rbp 23: 48 89 e8 mov %rbp,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 22 01 00 00 jne 0x159 37: 0f b6 6d 00 movzbl 0x0(%rbp),%ebp 3b: 48 89 ef mov %rbp,%rdi 3e: 48 rex.W 3f: c7 .byte 0xc7 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup