On 05/07/2021 22:19, Evgeniy Berdnikov via Exim-users wrote:
> No evidence of "inherited" memory corruption:
> after failure of DKIM verificaion subsequent mails are verified correctly.
> So it seems as rarely manifested bug.
I agree, rather difficult to know how to work on this.
You say that subsequent mails are ok; is that subsequent within
a single connection? What about previous ones on the same
connection - does that ever happen?
While there have been several changes in the DKIM code that probably
are not in the binary you are running:
$ git diff --stat exim-4.94.2 master src/dkim.c src/pdkim
src/src/dkim.c | 22 +++++++++++++++-------
src/src/pdkim/pdkim.c | 1 +
src/src/pdkim/signing.c | 3 ++-
3 files changed, 18 insertions(+), 8 deletions(-)
these only amount to a) more taint-tracking b) more efficient memory
use over multi-message connections c) maintaining functionality with
more-recent GnuTLS versions. I don't see any fixes, at least in
dkim-specific code.
--
Cheers,
Jeremy
