* Re: [PATCH] Bluetooth: prefetch channel before killing sock
[not found] <20200205023159.8764-1-hdanton@sina.com>
@ 2020-02-05 8:06 ` Marcel Holtmann
0 siblings, 0 replies; only message in thread
From: Marcel Holtmann @ 2020-02-05 8:06 UTC (permalink / raw)
To: Hillf Danton
Cc: Bluez mailing list, David S. Miller, Johan Hedberg, kuba,
linux-kernel, netdev, syzkaller-bugs,
syzbot+c3c5bdea7863886115dc, Manish Mandlik
Hi Hillf,
> Prefetch channel before killing sock in order to fix UAF like
>
> BUG: KASAN: use-after-free in l2cap_sock_release+0x24c/0x290 net/bluetooth/l2cap_sock.c:1212
> Read of size 8 at addr ffff8880944904a0 by task syz-fuzzer/9751
>
> Reported-by: syzbot+c3c5bdea7863886115dc@syzkaller.appspotmail.com
> Fixes: 6c08fc896b60 ("Bluetooth: Fix refcount use-after-free issue")
> Cc: Manish Mandlik <mmandlik@google.com>
> Signed-off-by: Hillf Danton <hdanton@sina.com>
> ---
patch has been applied to bluetooth-next tree.
Regards
Marcel
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2020-02-05 8:06 ` [PATCH] Bluetooth: prefetch channel before killing sock Marcel Holtmann
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