BASH PATCH REPORT ================= Bash-Release: 4.3 Patch-ID: bash43-003 Bug-Reported-by: Anatol Pomozov Bug-Reference-ID: Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-readline/2014-03/msg00010.html Bug-Description: When in callback mode, some readline commands can cause readline to seg fault by passing invalid contexts to callback functions. Patch (apply with `patch -p0'): --- a/lib/readline/readline.c +++ b/lib/readline/readline.c @@ -744,7 +744,8 @@ _rl_dispatch_callback (cxt) r = _rl_subseq_result (r, cxt->oldmap, cxt->okey, (cxt->flags & KSEQ_SUBSEQ)); RL_CHECK_SIGNALS (); - if (r == 0) /* success! */ + /* We only treat values < 0 specially to simulate recursion. */ + if (r >= 0 || (r == -1 && (cxt->flags & KSEQ_SUBSEQ) == 0)) /* success! or failure! */ { _rl_keyseq_chain_dispose (); RL_UNSETSTATE (RL_STATE_MULTIKEY); --- a/patchlevel.h +++ b/patchlevel.h @@ -25,6 +25,6 @@ regexp `^#define[ ]*PATCHLEVEL', since that's what support/mkversion.sh looks for to find the patch level (for the sccs version string). */ -#define PATCHLEVEL 2 +#define PATCHLEVEL 3 #endif /* _PATCHLEVEL_H_ */