tree 72e8b165a290feeeaab205b25101954158e5e2fe
parent b7ec3f91215a87cbb2fdbbf58e301a5db9cbbc9f
author Linus Torvalds <torvalds@linux-foundation.org> 1550185338 -0800
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1550218053 +0100

Revert "exec: load_script: don't blindly truncate shebang string"

commit cb5b020a8d38f77209d0472a0fea755299a8ec78 upstream.

This reverts commit 8099b047ecc431518b9bb6bdbba3549bbecdc343.

It turns out that people do actually depend on the shebang string being
truncated, and on the fact that an interpreter (like perl) will often
just re-interpret it entirely to get the full argument list.

Reported-by: Samuel Dionne-Riel <samuel@dionne-riel.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>