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Message-ID: <CAH2r5mvduivP8vddnZ8ybCZZ1=48NmMCb1gonOXe=D8aRJW_uQ@mail.gmail.com>
Date: Sun, 13 Oct 2013 21:25:50 -0500
From: Steve French <smfrench@...il.com>
To: Tim Gardner <tim.gardner@...onical.com>
Cc: "linux-cifs@...r.kernel.org" <linux-cifs@...r.kernel.org>,
samba-technical <samba-technical@...ts.samba.org>,
LKML <linux-kernel@...r.kernel.org>,
Steve French <sfrench@...ba.org>
Subject: Re: [PATCH 3.12-rc4] cifs: ntstatus_to_dos_map[] is not terminated
Merged into cifs-2.6.git
(for-next and for-linus branches)
Thoughts about suitability for stable anyone?
On Sun, Oct 13, 2013 at 2:29 PM, Tim Gardner <tim.gardner@...onical.com> wrote:
> Functions that walk the ntstatus_to_dos_map[] array could
> run off the end. For example, ntstatus_to_dos() loops
> while ntstatus_to_dos_map[].ntstatus is not 0. Granted,
> this is mostly theoretical, but could be used as a DOS attack
> if the error code in the SMB header is bogus.
>
> Cc: Steve French <sfrench@...ba.org>
> Signed-off-by: Tim Gardner <tim.gardner@...onical.com>
> ---
> fs/cifs/netmisc.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c
> index af847e1..651a527 100644
> --- a/fs/cifs/netmisc.c
> +++ b/fs/cifs/netmisc.c
> @@ -780,7 +780,9 @@ static const struct {
> ERRDOS, ERRnoaccess, 0xc0000290}, {
> ERRDOS, ERRbadfunc, 0xc000029c}, {
> ERRDOS, ERRsymlink, NT_STATUS_STOPPED_ON_SYMLINK}, {
> - ERRDOS, ERRinvlevel, 0x007c0001}, };
> + ERRDOS, ERRinvlevel, 0x007c0001}, {
> + 0, 0, 0 }
> +};
>
> /*****************************************************************************
> Print an error message from the status code
> --
> 1.7.9.5
>
--
Thanks,
Steve
--
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