From: Hillf Danton <hdanton@sina.com>
To: syzbot <syzbot+837ba09d9db969068367@syzkaller.appspotmail.com>
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [bluetooth?] KASAN: slab-out-of-bounds Read in hci_sock_setsockopt
Date: Fri, 5 Apr 2024 17:49:24 +0800 [thread overview]
Message-ID: <20240405094924.896-1-hdanton@sina.com> (raw)
In-Reply-To: <0000000000007558ae061553f41b@google.com>
On Thu, 04 Apr 2024 23:56:28 -0700
> syzbot found the following issue on:
>
> HEAD commit: fe46a7dd189e Merge tag 'sound-6.9-rc1' of git://git.kernel..
> git tree: upstream
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1777929d180000
#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git fe46a7dd189e
--- x/net/bluetooth/hci_sock.c
+++ y/net/bluetooth/hci_sock.c
@@ -1946,7 +1946,7 @@ static int hci_sock_setsockopt_old(struc
switch (optname) {
case HCI_DATA_DIR:
- if (copy_from_sockptr(&opt, optval, sizeof(opt))) {
+ if (len < sizeof(opt) || copy_from_sockptr(&opt, optval, sizeof(opt))) {
err = -EFAULT;
break;
}
--
next prev parent reply other threads:[~2024-04-05 9:50 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-05 6:56 [syzbot] [bluetooth?] KASAN: slab-out-of-bounds Read in hci_sock_setsockopt syzbot
2024-04-05 9:27 ` Edward Adam Davis
2024-04-06 5:09 ` syzbot
2024-04-05 9:49 ` Hillf Danton [this message]
2024-04-06 5:22 ` syzbot
2024-04-09 13:42 ` [PATCH] Bluetooth: fix oob " Edward Adam Davis
2024-04-09 14:13 ` Luiz Augusto von Dentz
2024-05-08 1:11 ` [syzbot] [bluetooth?] KASAN: slab-out-of-bounds Read " syzbot
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