Date: Wed, 20 Feb 2019 15:31:07 -0800 From: Kees Cook <keescook@...omium.org> To: "Tobin C. Harding" <tobin@...nel.org> Cc: Shuah Khan <shuah@...nel.org>, Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, Kernel Hardening <kernel-hardening@...ts.openwall.com>, LKML <linux-kernel@...r.kernel.org> Subject: Re: [PATCH 0/6] lib: Add safe string funtions On Mon, Feb 18, 2019 at 3:24 PM Tobin C. Harding <tobin@...nel.org> wrote: > During your talk at LCA you mentioned that we could do with a couple > more safe string functions. One to zero the tail of the destination > buffer after call to strscpy() and also the self explanatory > strscpy_from_user(). Thanks for jumping in with this! :) > I couldn't work out if this is a false positive or not? Does the new > config option CONFIG_TEST_STRING need more documentation? I don't see > where extra docs should be added and it seems self explanatory as is. Usually this just means the help string in Kconfig is "too short". Sometimes this is a false positive -- really up to you if you think it needs more. :) On to individual patches... -- Kees Cook
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