Re: [PATCH 2/2] exec: Avoid pathological argc, envc, and bprm->p values

On Fri, Jun 21, 2024 at 06:21:15AM -0700, Guenter Roeck wrote: > On 6/21/24 00:00, Kees Cook wrote: > > On Thu, Jun 20, 2024 at 05:19:55PM -0700, Guenter Roeck wrote: > > > Hi, > > > > > > On Sun, May 19, 2024 at 07:16:12PM -0700, Kees Cook wrote: > > > > Make sure nothing goes wrong with the stri

Re: [PATCH 2/2] exec: Avoid pathological argc, envc, and bprm->p values

On Thu, Jun 20, 2024 at 05:19:55PM -0700, Guenter Roeck wrote: > Hi, > > On Sun, May 19, 2024 at 07:16:12PM -0700, Kees Cook wrote: > > Make sure nothing goes wrong with the string counters or the bprm's > > belief about the stack pointer. Add checks and matching self-tests. > > > > For 32-bit va

[PATCH 2/2] exec: Avoid pathological argc, envc, and bprm->p values

Make sure nothing goes wrong with the string counters or the bprm's belief about the stack pointer. Add checks and matching self-tests. For 32-bit validation, this was run under 32-bit UML: $ tools/testing/kunit/kunit.py run --make_options SUBARCH=i386 exec Signed-off-by: Kees Cook --- Cc: Eric