netdev - Re: [PATCH 6/9] Bluetooth: Silence DEBUG_STRICT_USER_COPY

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 13 May 2011 18:06:20 -0300
From:	"Gustavo F. Padovan" <padovan@...fusion.mobi>
To:	Stephen Boyd <sboyd@...eaurora.org>
Cc:	linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, Marcel Holtmann <marcel@...tmann.org>
Subject: Re: [PATCH 6/9] Bluetooth: Silence DEBUG_STRICT_USER_COPY_CHECKS=y
 warning

Hi Stephen,

* Stephen Boyd <sboyd@...eaurora.org> [2011-05-12 16:50:09 -0700]:

> Enabling DEBUG_STRICT_USER_COPY_CHECKS causes the following
> warning:
> 
> In function 'copy_from_user',
>     inlined from 'rfcomm_sock_setsockopt' at
>     net/bluetooth/rfcomm/sock.c:705:
> arch/x86/include/asm/uaccess_64.h:65:
> warning: call to 'copy_from_user_overflow' declared with
> attribute warning: copy_from_user() buffer size is not provably
> correct
> 
> presumably due to buf_size being signed causing GCC to fail to
> see that buf_size can't become negative.
> 
> Cc: Marcel Holtmann <marcel@...tmann.org>
> Cc: Gustavo F. Padovan <padovan@...fusion.mobi>
> Signed-off-by: Stephen Boyd <sboyd@...eaurora.org>
> ---
>  net/bluetooth/rfcomm/sock.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)

Applied, thanks.

-- 
Gustavo F. Padovan
http://profusion.mobi
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html