27 Aug
2020
27 Aug
'20
7:41 p.m.
On Thu, Aug 27, 2020 at 12:37:03PM -0700, Joe Perches wrote:
On Thu, 2020-08-27 at 11:30 -0700, Kees Cook wrote:
Most of the uses of strcpy() in the kernel are just copying between two known-at-compile-time NUL-terminated character arrays. We had wanted to introduce stracpy() for this, but Linus objected to yet more string functions.
https://lore.kernel.org/kernel-hardening/24bb53c57767c1c2a8f266c305a670f7@sk...
I still think stracpy is a good idea.
Maybe when the strcpy/strlcpy uses are removed it'll be more acceptable.
And here's a cocci script to convert most of them. https://lore.kernel.org/kernel-hardening/b9bb5550b264d4b29b2b20f7ff8b1b40d20...
Yeah, thanks again for that. Most of this is very mechanical. (strncpy is not, unfortunately)
--
Kees Cook