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* Re: [PATCH] Bluetooth: prefetch channel before killing sock
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@ 2020-02-05  8:06 ` Marcel Holtmann
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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:
> Fixes: 6c08fc896b60 ("Bluetooth: Fix refcount use-after-free issue")
> Cc: Manish Mandlik <>
> Signed-off-by: Hillf Danton <>
> ---

patch has been applied to bluetooth-next tree.



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2020-02-05  8:06 ` [PATCH] Bluetooth: prefetch channel before killing sock Marcel Holtmann

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