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BASH PATCH REPORT
=================
Bash-Release: 4.3
Patch-ID: bash43-041
Bug-Reported-by: Hanno Böck <hanno@hboeck.de>
Bug-Reference-ID: <20150623131106.6f111da9@pc1>, <20150707004640.0e61d2f9@pc1>
Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2015-06/msg00089.html,
http://lists.gnu.org/archive/html/bug-bash/2015-07/msg00018.html
Bug-Description:
There are several out-of-bounds read errors that occur when completing command
lines where assignment statements appear before the command name. The first
two appear only when programmable completion is enabled; the last one only
happens when listing possible completions.
Patch (apply with `patch -p0'):
*** ../bash-4.3.40/bashline.c 2014-12-29 14:39:43.000000000 -0500
--- bashline.c 2015-08-12 10:21:58.000000000 -0400
***************
*** 1469,1476 ****
--- 1469,1489 ----
os = start;
n = 0;
+ was_assignment = 0;
s = find_cmd_start (os);
e = find_cmd_end (end);
do
{
+ /* Don't read past the end of rl_line_buffer */
+ if (s > rl_end)
+ {
+ s1 = s = e1;
+ break;
+ }
+ /* Or past point if point is within an assignment statement */
+ else if (was_assignment && s > rl_point)
+ {
+ s1 = s = e1;
+ break;
+ }
/* Skip over assignment statements preceding a command name. If we
don't find a command name at all, we can perform command name
*** ../bash-4.3.40/lib/readline/complete.c 2013-10-14 09:27:10.000000000 -0400
--- lib/readline/complete.c 2015-07-31 09:34:39.000000000 -0400
***************
*** 690,693 ****
--- 690,695 ----
if (temp == 0 || *temp == '\0')
return (pathname);
+ else if (temp[1] == 0 && temp == pathname)
+ return (pathname);
/* If the basename is NULL, we might have a pathname like '/usr/src/'.
Look for a previous slash and, if one is found, return the portion
*** ../bash-4.3/patchlevel.h 2012-12-29 10:47:57.000000000 -0500
--- patchlevel.h 2014-03-20 20:01:28.000000000 -0400
***************
*** 26,30 ****
looks for to find the patch level (for the sccs version string). */
! #define PATCHLEVEL 40
#endif /* _PATCHLEVEL_H_ */
--- 26,30 ----
looks for to find the patch level (for the sccs version string). */
! #define PATCHLEVEL 41
#endif /* _PATCHLEVEL_H_ */
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