54705: ksh93: fix use after free of .sh.edchar

% bindkey T foo
% zle -N foo
% foo() { emulate -L ksh; () { zle -M ${.sh.edchar} } }
% zmodload zsh/ksh93
% [press T twice]
\M-(\M-^Ak\M-<\M-G^?

or alternatively, emulate ksh in the main shell and just define this,
but then you have to make sure you're in a zsh -f shell so random things
aren't entering functions in the background.
% foo() { zle -M ${.sh.edchar} }

the code tries to restore sh_edchar = sh_unsetval; in the else branch,
but this doesn't ever run in the above scenario because we never enter
or leave a function with ksh emulation enabled (or indeed at all).

0 files changed, 0 insertions, 0 deletions